15 Best Auto Battery Tenders
for March 2021

Recommendations are independently chosen by MOOZ’s editors. Purchases you make through our links may earn us a commission.

1
9.9
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Battery Tender 5 Amp, 12V Battery Charger, Battery Maintainer: Fully-Automatic Battery Charger for Cars, Trucks, SUVs and More - Smart Automotive Battery Chargers - 022-0186G-DL-WH

Battery Tender 5 Amp, 12V Battery Charger, Battery Maintainer: Fully-Automatic Battery Charger for Cars, Trucks, SUVs and More

Smart Automotive Battery Chargers, 022-0186G-DL-WH

by Deltran
What We like

CONNECT AND FORGET: With a low maintenance design, our universal powersport vehicle charger and maintainer is compact, lightweight, and easy to operate even in small storage space for your convenience

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Product Features

  • STAY CHARGED: The powerful 5 amp charger provides a full charge to your automotive vehicles battery before automatically going into float mode to maintain proper voltage levels without overcharging. 5 amps 12 volt charger/maintainer
  • MONITOR POWER LEVELS: A solid state two-color LED light indicates the charging status and if the battery voltage drops too far under load, ISM adaptive charging will resume full charger output power. It is UL/CSA, CE and BC approved
  • EXTENDED BATTERY LIFE: Compatible with lead-acid, flooded, and sealed maintenance free batteries (AGM and gel cell) and ideal for use in long term storage to provide and maintain an optimal charge. Input voltage 120VAC @ 60 Hz

Stay charged: the powerful 5 amp charger provides a full charge to your automotive vehicles battery before automatically going into float mode to maintain proper voltage levels without overcharging. 5 amps 12 volt charger/maintainer Extended battery life: compatible with lead-acid, flooded, and sealed maintenance free batteries (agm and gel cell) and ideal for use in long term storage to provide and maintain an optimal charge. input voltage 120vac @ 60 hz Monitor power levels: a solid state two-color led light indicates the charging status and if the battery voltage drops too far under load, ism adaptive charging will resume full charger output power. it is ul/csa, ce and bc approved

2
9.9
SCORE
NOCO GENIUS2, 2-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation

NOCO GENIUS2

2-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation

by NOCO
What We like

Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.

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Product Features

  • Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
  • Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawn mowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries.
  • Meet the GENIUS2 - Similar to our G1100, just better. It's 34% smaller and delivers 65% more power. It's the all-in-one solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.
  • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.

Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawn mowers, atvs, lawn tractors, trucks, suvs, boats, pwcs, classic cars, and more. Enjoy precision charging - an integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Meet the genius2 - similar to our g1100, just better. it's 34% smaller and delivers 65% more power. it's the all-in-one solution - battery charger, battery maintainer, trickle charger, plus battery desulfator. Beyond maintenance - it's not just a trickle charger, it's an advanced battery maintainer. a fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge. Do more with genius - designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, agm, and maintenance-free, plus lithium-ion batteries. Restore your battery - automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.

3
9.5
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Battery Tender Plus Charger and Maintainer: 12V, 1.25 Amp Powersport Battery Charger and Maintainer for Motorcycles, ATVs, UTVs, and More - Smart 12 Volt Automatic Float Chargers by Deltran - 021-0128

Battery Tender Plus Charger and Maintainer: 12V, 1.25 Amp Powersport Battery Charger and Maintainer for Motorcycles, ATVs, UTVs, and More

Smart 12 Volt Automatic Float Chargers by Deltran, 021-0128

by Deltran
What We like

EXTENDED BATTERY LIFE: Compatible with lead-acid, flooded, and sealed maintenance free batteries (AGM and gel cell) and ideal for use in long term storage to provide and maintain an optimal charge

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Product Features

  • SAFE AND SECURE: Our battery charger and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power
  • EASY, FAST CHARGING: A low maintenance design to be quick and easy to use even in small storage spaces, our powersport charger and maintainer charges as fast or faster than any 3 amp charger available
  • MONITOR POWER LEVELS: Solid state two-color LED light indicates the state of the charge and if the battery voltage drops too far under load, ISM adaptive charging will resume full charger output power
  • STAY CHARGED: The 1.25 amp charger provides a full charge to your powersports battery before automatically switching to float mode to maintain proper voltage levels without overcharging the battery

Stay charged: the 1.25 amp charger provides a full charge to your powersports battery before automatically switching to float mode to maintain proper voltage levels without overcharging the battery Safe and secure: our battery charger and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power Easy, fast charging: a low maintenance design to be quick and easy to use even in small storage spaces, our powersport charger and maintainer charges as fast or faster than any 3 amp charger available Monitor power levels: solid state two-color led light indicates the state of the charge and if the battery voltage drops too far under load, ism adaptive charging will resume full charger output power

4
9.5
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Battery Tender Junior Charger and Maintainer: Automatic 12V Powersports Battery Charger and Maintainer for Motorcycle, ATVs, and More - Smart 12 Volt, 750mA Battery Float Chargers - 021-0123

Battery Tender Junior Charger and Maintainer: Automatic 12V Powersports Battery Charger and Maintainer for Motorcycle, ATVs, and More

Smart 12 Volt, 750mA Battery Float Chargers, 021-0123

by Deltran
What We like

EASY TO USE: Low maintenance design to be quick and easy to use, our universal powersport vehicle charger and maintainer is compact and lightweight. Perfect for charging all 12-volt lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell) and safety timer-80 hours

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Product Features

  • SAFE AND SECURE: Our battery charger and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct. Solid state two color LED indicates stage of charger and if the battery voltage drops too far under load, full charger output power resumes
  • MONITOR POWER LEVELS: Solid state two-color LED light indicates the state of the charge and if the battery voltage drops too far under load, ISM adaptive charging will resume full charger output power. Automatic charge cycle functionality switches to float mode after fully charging the battery
  • EXTENDED BATTERY LIFE: Compatible with lead-acid, flooded, and sealed maintenance free batteries (AGM and gel cell) to be ideal for use in long term storage. Complete 4-step charging program (Initialization, Bulk Charge, Float Mode) allows for optimization of battery power, without overcharging

Extended battery life: compatible with lead-acid, flooded, and sealed maintenance free batteries (agm and gel cell) to be ideal for use in long term storage. complete 4-step charging program (initialization, bulk charge, float mode) allows for optimization of battery power, without overcharging Safe and secure: our battery charger and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct. solid state two color led indicates stage of charger and if the battery voltage drops too far under load, full charger output power resumes Monitor power levels: solid state two-color led light indicates the state of the charge and if the battery voltage drops too far under load, ism adaptive charging will resume full charger output power. automatic charge cycle functionality switches to float mode after fully charging the battery

5
9.3
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Battery Tender USB Charger Adaptor

Battery Tender USB Charger Adaptor

by Deltran
What We like

Perfect for a charging device for your bike, ATV, etc.

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Product Features

  • Attaches to existing Battery Tender quick disconnect
  • Quite portable
  • Rubber flap protects charger connectors
  • 2.1 amps output

Attaches to existing battery tender quick disconnect Rubber flap protects charger connectors Quite portable 2.1 amps output

6
9.3
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BLACK+DECKER BM3B Fully Automatic 6V/12V Battery Charger/Maintainer with Cable Clamps and O-Ring Terminals

BLACK+DECKER BM3B Fully Automatic 6V/12V Battery Charger/Maintainer with Cable Clamps and O-Ring Terminals

by Black & Decker
What We like

Easy connection to vehicle battery using battery clips and O-ring terminals

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Product Features

  • Mounting bracket built-in to charger for convenient placement
  • Built-in circuit protection guards against overcharging, reverse polarity, or short circuit; ETL certified for performance and safety
  • AC Low voltage compensation ensures maximum performance when used with an extension cord
  • Charges and maintains 12 volt and 6 volt AGM, GEL and WET batteries
  • Stops charging automatically when battery is fully charged or topped off, switching to float mode monitoring

Charges and maintains 12 volt and 6 volt agm, gel and wet batteries Ac low voltage compensation ensures maximum performance when used with an extension cord Stops charging automatically when battery is fully charged or topped off, switching to float mode monitoring Mounting bracket built-in to charger for convenient placement Built-in circuit protection guards against overcharging, reverse polarity, or short circuit; etl certified for performance and safety

7
9.2
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MOTOPOWER MP00205A 12V 800mA Automatic Battery Charger, Battery Maintainer, Trickle Charger, and Battery Desulfator with Timer Protection

MOTOPOWER MP00205A 12V 800mA Automatic Battery Charger

Battery Maintainer, Trickle Charger, and Battery Desulfator with Timer Protection

by MOTOPOWER
What We like

[ Easy for operation ] -Just plug-in, connect to the battery and start charging or maintaining your battery. The desulfation is working automatically during the charing. No manual operation.

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Product Features

  • [ Charger, Maintainer & Desulfator ] - An all-weather battery charger, battery maintainer, trickle charger, and battery desulfator. Perfect for charging and maintaining all 12-volt lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell). ETL safety standard Listed.
  • [ Automatic Desulfation & Optimization ] - Automatic detection of battery sulfation problem. Applying with pulse current technology to desulfate the batteries effectively. Optimize the battery performance during charging without any manual operation.
  • [ Energy Saving & Spark Free ] - Zero output in standby mode. No battery drain when connecting with the battery. Spark proof during lead connection for safety.
  • [ Multi-level Safety Protection & Timer Set Up ] - Overcharge, short circuit and reverse polarity protected. Charge the battery up to 14.4V and Maintain the battery at 13.6V for long time to avoid gasing and to extend the battery life. 24-hour Timer is set up in the program to terminate the charge and enter the maintaining mode once the voltage is above 14V to ensure safety.

[ multi-level safety protection & timer set up ] - overcharge, short circuit and reverse polarity protected. charge the battery up to 14.4v and maintain the battery at 13.6v for long time to avoid gasing and to extend the battery life. 24-hour timer is set up in the program to terminate the charge and enter the maintaining mode once the voltage is above 14v to ensure safety. [ charger, maintainer & desulfator ] - an all-weather battery charger, battery maintainer, trickle charger, and battery desulfator. perfect for charging and maintaining all 12-volt lead-acid, flooded or sealed maintenance free batteries (agm and gel cell). etl safety standard listed. [ energy saving & spark free ] - zero output in standby mode. no battery drain when connecting with the battery. spark proof during lead connection for safety. [ automatic desulfation & optimization ] - automatic detection of battery sulfation problem. applying with pulse current technology to desulfate the batteries effectively. optimize the battery performance during charging without any manual operation.

8
9
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Schumacher SC1280 15 Amp 3 Amp 6V/12V Fully Automatic Smart Battery Charger Maintainer for Marine and Automotive Batteries

Schumacher SC1280 15 Amp 3 Amp 6V/12V Fully Automatic Smart Battery Charger Maintainer for Marine and Automotive Batteries

by Schumacher
What We like

Features 15A to charge and 3A to maintain your battery

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Product Features

  • Reverse hook-up protection ensures charger will not operate if clamps are reversed
  • Charges compatible battery types, including standard, AGM, gel and deep-cycle batteries
  • Automatically selects charge rate for charging and maintaining
  • Auto voltage detection automatically detects 6 or 12V batteries

Auto voltage detection automatically detects 6 or 12v batteries Automatically selects charge rate for charging and maintaining Charges compatible battery types, including standard, agm, gel and deep-cycle batteries Reverse hook-up protection ensures charger will not operate if clamps are reversed

9
8.9
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Battery Tender 800 is a SuperSmart Battery Charger that will Constantly Monitor, Charge, and Maintain your Battery. It's Encapsulated and Protected from Moisture by an Electrical Insulation

Battery Tender 800 is a SuperSmart Battery Charger that will Constantly Monitor

Charge, and Maintain your Battery. It's Encapsulated and Protected from Moisture by an Electrical Insulation

by Battery Tender
What We like

It's tough, affordable, and a strong, innovative battery charging solution

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Product Features

  • Solid new addition to the Battery Tender family of charger products
  • It incorporates highly efficient surface mount technology electronic components
  • The interior is completely encapsulated, protected from shock, vibration, and moisture by an electrically insulating, thermally conductive, flame retardant, synthetic epoxy resin compound
  • All the charging characteristics of the Battery Tender Junior: fully-automated SuperSmart charging and maintaining, spark proof, reverse polarity protection, and short circuit protection
  • The interior is completely encapsulated, protected from shock, vibration, and moisture by an electrically insulating, thermally conductive, flame retardant, UL recognized, synthetic epoxy resin compound

This compact 800 ma battery charger has all the charge characteristics of its cousin the Battery Tender junior All the charging characteristics of the Battery Tender junior: fully-automated supersmart charging and maintaining, spark proof, reverse polarity protection, and short circuit protection The interior is completely encapsulated, protected from shock, vibration, and moisture by an electrically insulating, thermally conductive, flame retardant, ul recognized, synthetic epoxy resin compound This charger is no larger than a standard computer mouse yet packs 800 milliamps of pure constant current charging power and is listed in the california appliance efficiency database The interior is completely encapsulated, protected from shock, vibration, and moisture by an electrically insulating, thermally conductive, flame retardant, synthetic epoxy resin compound Includes alligator clips and ring terminals, and is perfect for all outdoor types of atv's, watercraft, motorcycles, boats, or anywhere water is a threat, including lead-acid, flooded or sealed maintenance free batteries (agm and gel cell). Solid new addition to the Battery Tender family of charger products It incorporates highly efficient surface mount technology electronic components Ac power cord length: 6 ft.- 18 awg; dc output cord length: 4.5 ft. - 18 awg; dc output accessory length: 1.5 ft.

10
8.9
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Schumacher SC1300 1.5 Amp 6V/12V Fully Automatic Direct-Mount Onboard Under-the-Hood Smart Battery Charger/Maintainer and Battery Detection for Cars, Motorcycles, Lawn Tractors, Power Sports

Schumacher SC1300 1.5 Amp 6V/12V Fully Automatic Direct-Mount Onboard Under-the-Hood Smart Battery Charger/Maintainer and Battery Detection for Cars

Motorcycles, Lawn Tractors, Power Sports

by Schumacher
What We like

Provides 1.5A to maintain your 6V or 12V battery

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Product Features

  • Reverse hook-up protection ensures charger will not operate if clamps are reversed
  • Includes double-sided adhesive and cable tie for mounting
  • Microprocessor-controlled, with multi-stage charging for added precision, safety, and battery life
  • Auto voltage detection automatically detects 6 or 12V batteries

Microprocessor-controlled, with multi-stage charging for added precision, safety, and battery life Reverse hook-up protection ensures charger will not operate if clamps are reversed Auto voltage detection automatically detects 6 or 12v batteries Includes double-sided adhesive and cable tie for mounting

11
8.8
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Battery Tender 12 Volt, 5 Watt Solar Battery Charger and Maintainer - Weatherproof Mountable Solar Battery Charger with Windshield Mount and Cigarette Adapter Accessory Cable/AC Adaptor - 021-1171

Battery Tender 12 Volt, 5 Watt Solar Battery Charger and Maintainer

Weatherproof Mountable Solar Battery Charger with Windshield Mount and Cigarette Adapter Accessory Cable/AC Adaptor, 021-1171

by Deltran
What We like

EASY TO USE: A low maintenance design that's quick and easy to use, our universal powersports and automotive solar battery charger is mountable, lightweight and compact allowing it to operate everywhere with no power access

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Product Features

  • EXTENDED BATTERY LIFE: Compatible with lithium (LifeP04), lead-acid, flooded, and sealed maintenance free batteries (Lithium(LifeP04), AGM and gel cell) and ideal for use in long term storage to provide and maintain an optimal charge
  • STAY CHARGED: The 12V solar charger provides a full charge to your powersport's or automotive battery before switching to float mode to maintain proper voltage levels for safe storage without overcharging the battery
  • SAFE AND SECURE: Our solar battery charger and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power
  • MONITOR POWER LEVELS: A solid state two-color LED light indicates the charging status and if the battery voltage drops too far under load, ISM adaptive charging will resume full charger output power

Stay charged: the 12v solar charger provides a full charge to your powersport's or automotive battery before switching to float mode to maintain proper voltage levels for safe storage without overcharging the battery Safe and secure: our solar battery charger and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power Extended battery life: compatible with lithium (lifep04), lead-acid, flooded, and sealed maintenance free batteries (lithium(lifep04), agm and gel cell) and ideal for use in long term storage to provide and maintain an optimal charge Monitor power levels: a solid state two-color led light indicates the charging status and if the battery voltage drops too far under load, ism adaptive charging will resume full charger output power

12
8.8
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Amazon Basics Battery Charger 12 Volt 2A

Amazon Basics Battery Charger 12 Volt 2A

by Amazon Basics
What We like

Made of durable plastic material in a sleek red color; includes a fused ring terminal harness; for use indoors, in a garage

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Product Features

  • Plugs into a 120V outlet and outputs 6/12V at 2A; spark proof with reverse polarity protection (will not supply power unless the connection is correct)
  • Battery charger for cars, motorcycles, boats, and more; fully charges and maintains the appropriate storage voltage
  • Compatible with lead acid, absorbed glass mat (AGM), and deep-cycle battery types; fused alligator clips for easily connecting to a battery

Battery charger for cars, motorcycles, boats, and more; fully charges and maintains the appropriate storage voltage Compatible with lead acid, absorbed glass mat (agm), and deep-cycle battery types; fused alligator clips for easily connecting to a battery Plugs into a 120v outlet and outputs 6/12v at 2a; spark proof with reverse polarity protection (will not supply power unless the connection is correct)

13
8.7
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Battery Tender 10 AMP Rapid Battery Charger: 12V, 6 Amp and 2 Amp Selectable Chemistry Battery Charger and Maintainer, Built-in Wi-Fi and Power Supply – 022-0229-DL-WH

Battery Tender 10 AMP Rapid Battery Charger: 12V

6 Amp and 2 Amp Selectable Chemistry Battery Charger and Maintainer, Built-in Wi-Fi and Power Supply – 022-0229-DL-WH

by Deltran
What We like

Built-In 10 Amp Power Supply: Connect the alligator clips to your vehicle terminal so you don't lose your vehicle computer settings.

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Product Features

  • 10 Amp, 6 Amp and 2 Amp Selectable Charges & Maintains Charges Most 12V Battery Types
  • Download the Deltran Connected App to Monitor your Battery on your Smartphone
  • Charges & Maintains Automotive and PowerSports Batteries at Optimal Charge
  • Connect It And Forget It: Once connected, the Battery Tender Charger manages your batterys health on its own

Connect it and forget it: once connected, the battery tender charger manages your batterys health on its own Download the Deltran connected app to monitor your battery on your smartphone 10 amp, 6 amp and 2 amp selectable charges & maintains charges most 12v battery types Charges & maintains automotive and powersports batteries at optimal charge

14
8.7
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ECO-WORTHY 12 Volt 5 Watt Solar Trickle Charger for 12V Batteries Portable Power Solar Panel Battery Charger Maintainer for Car Boat Marine Motorcycles Truck

ECO-WORTHY 12 Volt 5 Watt Solar Trickle Charger for 12V Batteries Portable Power Solar Panel Battery Charger Maintainer for Car Boat Marine Motorcycles Truck

by ECO-WORTHY
What We like

[ Updates ] - Comes with the cigarette lighter adapter and 1 pair of battery clips. Unique design-high quality clips to prevent short circuits. The panel is well packaged in a firm box, avoiding crashing.

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Product Features

  • [ Feature ] - Environmental protection and energy saving, built-in blocking diode to prevent reverse discharge, not only maintains the battery lifetime but also extends its usage life, keep the battery from drain dead .
  • [ Suitble For ] - Charging 12V battery in emergency, suitable for the vehicles in outdoor work, travel or camping training, and the vehicles are put for a long time. Easy to install and completely maintenance-free.
  • [ Wide Use ] - Perfect trickle charger/maintainer for 12V batteries of cars, motorcycles, boats, snowmobiles, tractors etc. The dimensions is 8.7in x 7.5in
  • [ Warm Tip ] - Please remove the protective plastic film from the right corner of the panel before using it. The cigarette plug option only works if it has constant power when the key is out of the ignition. When you start the car, please remove the solar panel from the car battery. The suckers help to attach the solar panel on the smooth surface like windshield.

[ feature ] - environmental protection and energy saving, built-in blocking diode to prevent reverse discharge, not only maintains the battery lifetime but also extends its usage life, keep the battery from drain dead . [ warm tip ] - please remove the protective plastic film from the right corner of the panel before using it. the cigarette plug option only works if it has constant power when the key is out of the ignition. when you start the car, please remove the solar panel from the car battery. the suckers help to attach the solar panel on the smooth surface like windshield. [ wide use ] - perfect trickle charger/maintainer for 12v batteries of cars, motorcycles, boats, snowmobiles, tractors etc. the dimensions is 8.7in x 7.5in [ suitble for ] - charging 12v battery in emergency, suitable for the vehicles in outdoor work, travel or camping training, and the vehicles are put for a long time. easy to install and completely maintenance-free.

15
8.6
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TP-solar 10 Watt 12 Volt Solar Panel Car Battery Charger 10W 12V Portable Solar Trickle Battery Maintainer with Cigarette Lighter Plug & Alligator Clip for Car Boat Motorcycle Tractor

TP-solar 10 Watt 12 Volt Solar Panel Car Battery Charger 10W 12V Portable Solar Trickle Battery Maintainer with Cigarette Lighter Plug & Alligator Clip for Car Boat Motorcycle Tractor

by TP-solar
What We like

Lightweight and easy to carry, it weighs only 8.8oz, size 14.5*7.8 inch, and made of waterproof and long lasting material, designed for long term use.

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Product Features

  • It is designed with a indicate light in the junction box, when the solar panel is facing the sunlight, it will light up and shows that the solar panel is charging the battery. Please note the kit is not for charging your dead battery. It is a solar battery maintainer that keeps your battery charged to lengthen its life expectancy.
  • Plug and play: Heavy duty 2.1mm x 5.5mm DC plug with extension cord. Male to Female, included cigarette lighter plug in the socket, easy to install even for those have no professional knowledge. No additional much maintenance to the kit, no electricity cost, place the panel facing the direction with the most sunlight possible.
  • 12 volt DC solar power charger, it is perfect for maintaining batteries of car RV motorcycle boat marine trailer tractor ATVs truck, etc. Designed to maintain the 12V battery at a proper storage voltage with sunlight.
  • Built-in safety protection: Built-in circuit board to prevent your batteries from discharging backwards through your solar panels at night when chargers voltage is lower.

Plug and play: heavy duty 2.1mm x 5.5mm dc plug with extension cord. male to female, included cigarette lighter plug in the socket, easy to install even for those have no professional knowledge. no additional much maintenance to the kit, no electricity cost, place the panel facing the direction with the most sunlight possible. 12 volt dc solar power charger, it is perfect for maintaining batteries of car rv motorcycle boat marine trailer tractor atvs truck, etc. designed to maintain the 12v battery at a proper storage voltage with sunlight. It is designed with a indicate light in the junction box, when the solar panel is facing the sunlight, it will light up and shows that the solar panel is charging the battery. please note the kit is not for charging your dead battery. it is a solar battery maintainer that keeps your battery charged to lengthen its life expectancy. Built-in safety protection: built-in circuit board to prevent your batteries from discharging backwards through your solar panels at night when chargers voltage is lower.

16
8.6
SCORE
Yuasa YUA1AMPCH 12V 1-Amp Battery Charger 50 State Compliant

Yuasa YUA1AMPCH 12V 1-Amp Battery Charger 50 State Compliant

by Yuasa
What We like

3 stage charge cycle designed to prevent overcharging

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Product Features

  • Fit type: Universal Fit
  • Automatically switches to maintenance mode after battery reaches peak voltage
  • Easy-to-use just plug in and attach to battery
  • 3 color LED displays your charge status at a glance

Automatically switches to maintenance mode after battery reaches peak voltage 3 color led displays your charge status at a glance Fit type: universal fit Easy-to-use just plug in and attach to battery

17
8
SCORE
DieHard 71219 6/12V Shelf Smart Battery Charger and 2A Maintainer

DieHard 71219 6/12V Shelf Smart Battery Charger and 2A Maintainer

by DieHard
What We like

Features battery maintaining to prevent overcharging, charging will resume if battery becomes discharged

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Product Features

  • Micro processor controlled, fully automatic, 5-stage charging process for precise charging and monitoring batteries
  • Versatile quick-connect harness with 50A clamps, 12V accessory plug or permanent ring connectors
  • LED indictor will flash if clamps are reversed and charger will not operate
  • Quick connect harness's install fast for hard-to-reach motorcycle batteries

Quick connect harness's install fast for hard-to-reach motorcycle batteries Versatile quick-connect harness with 50a clamps, 12v accessory plug or permanent ring connectors Led indictor will flash if clamps are reversed and charger will not operate Micro processor controlled, fully automatic, 5-stage charging process for precise charging and monitoring batteries

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