Top 9 Towed Battery Charger – Automotive Replacement Batteries & Accessories

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1. BrakeBuddy


Hopkins 39332 Brake Buddy Towed Vehicle Battery Maintainer

BrakeBuddy #ad - Universal and can be used with all braking systems. Industry's best one year warranty included. Maintains towed vehicle's battery charge while in tow. Easy to use. Reliable and effective.
BrandBrakeBuddy #ad
ManufacturerHopkins Manufacturing #ad
Height2.3 Inches
Length4.9 Inches
Weight0.26 Pounds
Width3.1 Inches
Part Number39332
Warranty1 Year Warranty



2-Amp Direct-Mount Onboard Charger, and Battery Desulfator with Temperature Compensation, NOCO GENIUS2D, Battery Maintainer, 12V Battery Charger, Trickle Charger

NOCO #ad - Direct-mount - securely mounts nearby the battery with its rugged snap-fit mounting bracket and effortlessly installs into most materials with truss-head self-tapping screws. Compatible with all types of vehicles - add a permanent onboard battery charger to any vehicle to make battery maintenance simple and easy.

Plus, combine with any of the GCP Series AC Port Plugs for remote charging access. 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 genius2d - the all-new direct-mount onboard battery charger for an under-the-hood battery charging system and year-round battery maintenance. Beyond maintenance - it's not a trickle charger, providing intuitive and safe maintenance charging with zero overcharge.

A fully-automatic, it's an advanced battery maintainer. Restore your battery - automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life. Charge dead batteries - charge batteries as low as 1-volt, as well as automotive, and AGM, gel, marine, including flooded, and deep-cycle batteries. It monitors your battery 24/7, worry-free battery charger for year-round use.
BrandNOCO #ad
ManufacturerNOCO #ad
Height1.5 Inches
Length5 Inches
Weight0.73 Pounds
Width2.3 Inches
Part NumberGENIUS2D
Warranty3-Year Limited Warranty

3. Roadmaster


Roadmaster 156-25 Towed Vehicle Charge Line Kit

Roadmaster #ad - Extends battery life by providing a constant maintenance charge without overcharging during towing. Heavy-duty, 14-gauge wire. Helps maintain the vehicle's battery charge while in tow, supplying up to 15 amps of current. Includes a thermal circuit breaker - no need to hunt down a blown fuse. Installation hardware included.
BrandRoadmaster #ad
ManufacturerRoadmaster, Inc. #ad
Height6 Inches
Length6 Inches
Weight0.49 Pounds
Width6 Inches
Part Number156-25

4. Hopkins


Hopkins 20011 Breakaway Battery Charger

Hopkins #ad - Charges a 5 amp hour battery in 30 minutes and trickle charges thereafter. Impact resistant plastic. Installs conveniently inside breakaway box. Charges battery when vehicle and trailer are connected.
BrandHopkins #ad
ManufacturerHopkins #ad
Height0 Inches
Length0 Inches
Width0 Inches
Part Number20011

5. Suuwer


Battery Maintainer, AGM, SLA, LTV, Gel Cell, iGel, for Sealed Maintenace Free AGM, Lead Acid Battery or Lithium LifePO4, Suuwer 12V 2A Fully-Automatic Smart Trickle Charger, Battery Charger

Suuwer #ad - The fact that it adapts to temperature plus complete 4-step charging program Initialization, Absorption Mode, Bulk Charge, Float Mode is really cool- and very useful- that will ensure optimal safety and smart charging. Say goodbye to dead batteries. Perfect for auto, rV, Alarm System batteries and more! . A savior to save the life of your batteries is here at last! Safety guarantee – multi-level protection against reverse polarity/ short circuit/ over voltage/ Over Current/ Overload/ Overheat; Spark proof during lead connection offers peace of mind.

No need of any manual operation, just plug and leave it for charging and maintaining of your batteries automatically for long time. Then it will maintain the battery with a float charging current. 2. 0 amp trickle charger system - you have no idea how long your vehicle battery should be charged, or what type of charger it needs? Large battery clip and O-ring terminals make it easy to connect your motorcycles and car batteries. Fully automatic charging & maintaining - the microprocessor-controlled program will monitor the whole charging progress and automatically stop when the battery is fully charged.

Versatile smart battery charger - charge fully-drained lead-acid, lawn tractor, rv, marine, scooter, truck, car, Snowmobile, race, Golf Carts, UTV, Airplanes, boat, ATV, lawn mower and snowmobile, Back-Up Generator Systems, Power sport, Motorcycle, Personal Watercraft, flooded or sealed maintenance free batteries AGM and Gel Cell or Lithium LiFePO4. Advanced intuitive led indicators – this 12-volt automotive battery maintainer charger is equipped with Status indicator LED that provides a visual state-of-charge feedback and diagnostic information to determine the operating mode of the charger and hence the condition of the battery connected to the charger.
BrandSuuwer #ad
ManufacturerSuuwer #ad
Height2.36 Inches
Length3.8 Inches
Width1.38 Inches
Part NumberSUW020



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

MOTOPOWER #ad - The desulfation is working automatically during the charing. Multi-level safety protection & timer set up - overcharge, short circuit and reverse polarity protected. Charger, trickle charger, maintainer & desulfator - an all-weather battery charger, and battery desulfator.

No manual operation. 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. Applying with pulse current technology to desulfate the batteries effectively. 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. Perfect for charging and maintaining all 12-volt lead-acid, battery maintainer, flooded or sealed maintenance free batteries AGM and gel cell.

Spark proof during lead connection for safety. Etl safety standard Listed. Easy for operation -just plug-in, connect to the battery and start charging or maintaining your battery. Energy saving & spark free - zero output in standby mode. Automatic desulfation & optimization - automatic detection of battery sulfation problem. No battery drain when connecting with the battery.
ManufacturerMOTOPOWER #ad
Height1.5 Inches
Length4.1 Inches
Width2 Inches
Part NumberMP00205A

7. BrakeBuddy


BrakeBuddy 39305 12 Volt Battery Direct Kit

BrakeBuddy #ad - For digital classic, vantage select, or boost braking systems. Upgrades the towed vehicle's cigarette lighter socket to 12 volts by connecting directly to the battery. Kit includes 12 volt plug with red and black wires, 2 nuts, 2 flat washers, 1 ring connector, 6 nylon ties, mounting bracket, 10 foot wiring harness, 20 amperes inline fuse, 2 sheet metal screws, and 1 rubber grommet. Industry's best one year warranty included. Easy to use.
BrandBrakeBuddy #ad
ManufacturerHopkins Manufacturing #ad
Height5.9 Inches
Length7.7 Inches
Weight1.05 Pounds
Width6.5 Inches
Part Number39305
Warranty1 Year Warranty

8. Battery Tender


Battery Tender 10-Bank Charger: Selectable 6V / 12V Battery Charger Automotive

Battery Tender #ad - The first fully automatic, constant-current 12v battery charger designed to charge and/or maintain up to 10 12-volt or 6-volt batteries simultaneously @ 4 amps. To avoid dangerous dead-short sparking, microchip circuitry will not activate output voltage until clips are correctly connected to battery. Connect it and forget it: once connected, the Battery Tender Charger manages your battery’s health on it’s own. Automatically switches to float/maintenance voltage after fully charging the battery. 3 year industry Leading Warranty.
BrandBattery Tender #ad
ManufacturerDeltran #ad
Height13 Inches
Length25 Inches
Weight13 Pounds
Width13 Inches
Part Number021-0134-DL-WH
Warranty3 year material and workmanship

9. Battery Tender


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

Battery Tender #ad - 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. Complete 4-step charging program Initialization, without overcharging. Perfect for charging all 12-volt lead-acid, flooded or sealed maintenance free batteries AGM and gel cell and safety timer-80 hours.

Solid state two color led indicates stage of charger and if the battery voltage drops too far under load, full charger output power resumes. Safe and secure: our 12v battery charger and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct. Spark proof during lead connection, reverse polarity protected and includes a 12-foot output cord and 5-year warranty. Automatic charge cycle functionality switches to float mode after fully charging the battery.

Extended battery life: compatible with lead-acid, Float Mode allows for optimization of battery power, bulk Charge, flooded, and sealed maintenance free batteries AGM and gel cell to be ideal for use in long term storage. Stay charged: provides a full charge to your machine’s battery before switching to float mode to maintain proper voltage levels for safe, long term storage without overcharging. Easy to use: low maintenance design to be quick and easy to use, our universal powersport vehicle charger and maintainer is compact and lightweight.
BrandBattery Tender #ad
ManufacturerDeltran #ad
Height9 Inches
Length8 Inches
Weight1.8 Pounds
Width4 Inches
Part Number021-0123
WarrantyManufacturer Warranty