Top 9 Towed Vehicle Battery Charger – Automotive Replacement Batteries & Accessories

As an Amazon Associate I earn from qualifying purchases.

1. BrakeBuddy


Hopkins 39332 Brake Buddy Towed Vehicle Battery Maintainer

BrakeBuddy #ad - Easy to use. Maintains towed vehicle's battery charge while in tow. Universal and can be used with all braking systems. Industry's best one year warranty included. 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. Roadmaster


Roadmaster 156-25 Towed Vehicle Charge Line Kit

Roadmaster #ad - 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. Extends battery life by providing a constant maintenance charge without overcharging during towing. Heavy-duty, 14-gauge wire. Installation hardware included.
BrandRoadmaster #ad
ManufacturerRoadmaster, Inc. #ad
Height6 Inches
Length6 Inches
Weight0.49 Pounds
Width6 Inches
Part Number156-25

3. Blue Ox


Blue Ox BX88254 7-Wire to 4-Wire Coiled Electrical Cable

Blue Ox #ad - Spade style 7-way round connector on one end, 4-way connector on the other. Eliminates the need for adapters. Includes one 4-way socket for your towed vehicle. Designed for motorhomes with 7-way connectors.
BrandBlue Ox #ad
ManufacturerBlue Ox #ad
Height0 Inches
Length0 Inches
Weight1.25 Pounds
Width0 Inches
Part NumberBX88254
Warranty1 Year



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

NOCO #ad - It monitors your battery 24/7, providing intuitive and safe maintenance charging with zero overcharge. 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.

Beyond maintenance - it's not a trickle charger, it's an advanced battery maintainer. 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. 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.

A fully-automatic, worry-free battery charger for year-round use. 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, and AGM, marine, gel, as well as automotive, including flooded, and deep-cycle batteries.
BrandNOCO #ad
ManufacturerNOCO #ad
Height1.5 Inches
Length5 Inches
Weight0.73 Pounds
Width2.3 Inches
Part NumberGENIUS2D
Warranty3-Year Limited Warranty

5. Hopkins


Hopkins 20011 Breakaway Battery Charger

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

6. Battery Tender


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

Battery Tender #ad - Safe and secure: our 12v battery charger and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct. 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.

Complete 4-step charging program Initialization, flooded, Bulk Charge, without overcharging. Spark proof during lead connection, reverse polarity protected and includes a 12-foot output cord and 5-year warranty. 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. Solid state two color led indicates stage of charger and if the battery voltage drops too far under load, full charger output power resumes.

Extended battery life: compatible with lead-acid, float mode allows for optimization of battery power, and sealed maintenance free batteries AGM and gel cell to be ideal for use in long term storage. 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. Automatic charge cycle functionality switches to float mode after fully charging the battery.
BrandBattery Tender #ad
ManufacturerDeltran #ad
Height9 Inches
Length8 Inches
Weight1.8 Pounds
Width4 Inches
Part Number021-0123
WarrantyManufacturer Warranty



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

MOTOPOWER #ad - 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. Charger, and battery desulfator. No battery drain when connecting with the battery. Easy for operation -just plug-in, connect to the battery and start charging or maintaining your battery.

Automatic desulfation & optimization - automatic detection of battery sulfation problem. Optimize the battery performance during charging without any manual operation. No manual operation. Perfect for charging and maintaining all 12-volt lead-acid, Maintainer & Desulfator - An all-weather battery charger, trickle charger, battery maintainer, flooded or sealed maintenance free batteries AGM and gel cell. Multi-level safety protection & timer set up - overcharge, short circuit and reverse polarity protected.

Spark proof during lead connection for safety. The desulfation is working automatically during the charing. Applying with pulse current technology to desulfate the batteries effectively. Energy saving & spark free - zero output in standby mode. Etl safety standard Listed. 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.
ManufacturerMOTOPOWER #ad
Height1.5 Inches
Length4.1 Inches
Width2 Inches
Part NumberMP00205A



Foval Automatic Trickle Battery Charger 12V 1000mA Smart Battery Charger

FOVAL #ad - Small size 3. 9 x 2. 4 x 1. 25 in and suitable for most vehicles: adapts to all kinds of 12v battery for automobiles, golf carts, batteries using either the ring or alligator connectors, RVs, etc, motorcycles, personal watercraft, ATVs, automatically switches to float, boats, airplanes, back-up generator systems lawn mower, maintenance voltage after fully charging the battery.

Intuitive led indicators provide visual state-of-charge feedback and diagnostic information, even when in maintenance mode. Safety with etl listed: spark proof during lead connection, reverse polarity protected and includes a 8 foot output cord and 2 year warranty.

Perfect for all lead-acid, bulk charge, flooded or sealed maintenance free batteries AGM and gel cell, also complete 4-step charging program Initialization, Absorption Mode, Float Mode. It will charge and maintain your battery so that it is ready to go when you are! It's lightweight, fully automatic and easy to use.
BrandFOVAL #ad
ManufacturerFOVAL #ad
Height1.2 Inches
Length3.9 Inches
Weight0.66 Pounds
Width2.4 Inches
Part NumberNF-MGDK-6O3Q
Warranty18 months warranty and 100% customer service

9. Suuwer


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

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. Perfect for auto, personal watercraft, rv, motorcycle, Airplanes, Power sport, Back-Up Generator Systems, Marine, Scooter, Alarm System batteries and more! .

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. No need of any manual operation, just plug and leave it for charging and maintaining of your batteries automatically for long time. Versatile smart battery charger - charge fully-drained lead-acid, boat, car, utv, lawn tractor, snowmobile, truck, rv, lawn Mower and Snowmobile, atv, race, golf carts, flooded or sealed maintenance free batteries AGM and Gel Cell or Lithium LiFePO4. Fully automatic charging & maintaining - the microprocessor-controlled program will monitor the whole charging progress and automatically stop when the battery is fully charged.

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. Then it will maintain the battery with a float charging current. 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.
BrandSuuwer #ad
ManufacturerSuuwer #ad
Height2.36 Inches
Length3.8 Inches
Width1.38 Inches
Part NumberSUW020