Top 9 DC to DC Battery Charger – Automotive Replacement Batteries & Accessories

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1. Renogy

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AGM, Renogy 40A DC to DC Battery Charger for Flooded, and Lithium Batteries Using Multi-stage Charging, Gel

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Renogy #ad - 2. Smart protection features: Over-voltage safety, Overheat protection, and Reverse polarity protection. 5. Compact, sturdy design, built tough for all conditions. 1. Multi-chemistry battery Types: AGM, Gel, Flooded, and Lithium.4. 3-phase charging: Bulk, Boost, and Float. 3. Battery input and Output Isolation.
BrandRenogy #ad
ManufacturerRenogy #ad
Part NumberRNG-DCC
Model40A
Warrantyaccessories1-year material warranty

2. Renogy

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Renogy DCC50S 12V 50A DC Board Battery Charger with MPPT

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Renogy #ad - Built-in voltage sensitive Relay VSR for user friendly setup with traditional alternators. The renogy dc-dc on-board battery charger with mPPT is designed to charge service batteries at the most effecient rate from two DC input, solar panels and the vehicles alternator.

Smart protection features: battery isolation, over-current protection, overheat protection, over-voltage protection, reverse current protection, battery temperature protection, solar panel and alternator reverse polarity protection. Solar input Voltage : 25V. Sophisticated automatic 3-phase charging profile Bulk, Boost, and Float ensures your service battery will be accurately charged at the correct voltage levels to 100%. Compatible with multiple deep cycle battery types: AGM, Flooded, GEL, and Lithium. Max.
BrandRenogy #ad
ManufacturerRenogy #ad
Height3 Inches
Length9.6 Inches
Weight3.13 Pounds
Width5.7 Inches
Part Numberfor Flooded, Gel, AGM, and Lithium Batt
ModelRenogy DCC50S 12V 50A DC-DC
Warranty1-year material warranty

3. Renogy

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Lithium Battery Compatibility 6000W Surge, Renogy PCL1-20111S 2000 Watt 12V DC to 120V AC Pure Sine Wave Inverter Charger w/LCD Display

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Renogy #ad - Configurable input voltage range and battery charging current. Charger input voltage Range: 90-138 VAC. Power source type: Solar Powered. Capable of producing cleaner, lights, quieter, and reliable power to operate tools, fans, smoother, and other electronics without interference. Configurable input voltage range and battery charging current. 2-year material and workmanship. 4 stage battery charger; 8 pre-set battery voltages including lithium; User-defined option available.
BrandRenogy #ad
ManufacturerRenogy #ad
Height7.6 Inches
Length20.1 Inches
Width9.7 Inches
Part NumberPCL1-20111S
ModelPCL1-20111S

4. Tecmate

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OptiMATE DC-DC, TM-500, 6-step 12V/12.8V 2A sealed DC to DC battery saving charger & maintainer

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Tecmate #ad - Charge both lead-acid and Lithium batteries from another 12V battery! Safe to use with Lithium batteries. Bms battery management system wake up mode safely wakes battery with integrated BMS protection out of sleep mode.

Fully sealed case to protect against spillage and light rain. Saves your 12v battery agm, deep cycle when no other charger will work. Tests automatically and indicates if there is a battery problem. Continuous charging if healthy, stops and warns if faulty. If optimate can't save it, GEL, STD, Starter, nothing will. Optimate is recommended by honda, Yamaha, ktm and Husqvarna and global battery manufacturers Antigravity, Kawasaki, Super-B and Earth-X. Connect and forget, no more battery problems.
BrandTecmate #ad
ManufacturerOptiMate #ad
Height2.56 Inches
Length6.57 Inches
Weight1.32 Pounds
Width1.81 Inches
Part NumberTM-500
ModelTM-500
Warranty3 Years

5. TP-solar

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TP-solar 20W 12V Solar Panel kit Battery Charger Maintainer + 10A Waterproof Solar Charge Controller + Adjustable Mount Tilt Rack Bracket + Solar Cable for Car RV Marine Boat 12 Volt Battery Off Grid

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TP-solar #ad - Note, full protections prevent battery from overcharge and over discharge, wood or wall. The 20 watt solar panel battery charger and maintainer, ideal for a variety of DC applications. It is also suitable for maintaining and charging the batteries in any car, trucks, etc. With an ip67 waterproof intelligent charge controller, Installation Manual and User Guide can be downloaded in the middle of listing page.

It can generate current to charge the batteries, motorcycle, gate opener, RVs, tractor, snowmobiles, boat, cabin, shed, prevent the loss current of the battery in storage or standby process. The product is equipped with a bracket that adjusts the mounting angle for better sunlight reception, it can be mounted on ground, over voltage, short circuit, etc. Package includes 20 watts 12 volt solar panel, u shape mount tilt rack bracket, two 6.

5ft cables with alligator clips and o-ring terminal for battery charging connection, 12V/24V IP67 waterproof intelligent charge controller, easy to fix and install. It can safely charge and maintain various 12V batteries such as Wet, MF, a basic off grid solar panel kit, Gel, EFB and AGM. The solar panel is lightweight, easy to carry and install, heavy duty anodized aluminum frame, made with high efficiency monocrystalline solar cells, the corrosion-proof aluminum frame and tempered glass coating shield the panel from weathering and wear.
BrandTP-solar #ad
ManufacturerTP-solar #ad
Part NumberAM-T05M20C10WUB-1

6. KeyLine Chargers

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KeyLine Chargers 12V 140 Amp Dual Battery Isolator Voltage Sensitive Relay VSR Pro Dual Battery Kit

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KeyLine Chargers #ad - If you are not 100% satisfied with your purchase, simply take advantage of the No Questions Asked, 30-Day Money Back Guarantee!! Buy with confidence: every 140 amp dual battery isolator is backed by an industry leading 12-month warranty. Voltage sensitive relay: the keyline automatic 140 amp dual battery isolator is all you need to charge Two Battery Systems.

What could be easier? Great for extreme vibration applications as well. Voltage sensitive Relay VSR cuts in at 13. 3 volts and cuts out at 12. 8 volts to ensure your primary battery is always charged and ready to start your vehicle. This compact battery isolator was built ultra-small 2. 6" x 2. 6" x 2" to fit almost anywhere! A perfect fit under the hood to get close to your dual batteries. It's like having two separate power sources for each battery while only having one alternator! Rugged durability: unlike other isolators on the market, the keyline automatic 140 Amp Dual Battery Isolator is IP65 Certified.

Easy-to-follow directions for the most novice DIYer. Power wire in, power wire out. This international protection rating means that your KeyLine isolator is safe for use even for your off-road needs in dusty, wet and unexpected extreme weather environments. What you get: 1 140 amp voltage sensitive relay vsr; 1 20 ft red battery cable; 1 2ft black ground battery cable; 2 positive brass marine type battery terminals; 1 negative brass marine type battery terminal; tinned copper lugs & heat shrink; cable ties; easy-to-follow instructions.
BrandKeyLine Chargers #ad
ManufacturerKeyLine Chargers #ad
Height2 Inches
Length2.6 Inches
Weight0.5 Pounds
Width2.6 Inches
Part NumberISO-PRO140
ModelISO-PRO140
WarrantyManufacturer warranty for 1 year from date of purchase.

7. Renogy

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Renogy 12V 20A AC-to-DC Portable Battery Charger w/ 12AWG Alligator Clips for Lithium Iron Batteries

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Renogy #ad - Easy-to-understand LED indicator for charge status. Electronic Protections and Lithium Activation. Compatible with Renogy 12. 8v lithium Batteries. Automatic lfp battery Charging with a wide input voltage range. Simple plug-and-Play Technology with Alligator Clips.
BrandRenogy #ad
ManufacturerRenogy #ad
Height2.52 Inches
Length9.17 Inches
Weight3.75 Pounds
Width4.25 Inches
Part NumberLFP Portable Battery Charger
Model12V 20A AC-to-DC
Warranty1-year material warranty

8. Tekonsha

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Tekonsha 2024-07-S Heavy Duty Quick/Maintenance Multi Stage Charger

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Tekonsha #ad - Designed to fit securely into the Breakaway Battery Cases. Dc to dc heavy duty quick/maintenance Multi Stage Charger - 12 Volt. Temperature compensated design provides continuous recharge. Automatic float mode feature to prevent overcharging.
BrandTekonsha #ad
ManufacturerTekonsha #ad
Height7.5 Inches
Length16 Inches
Weight0.44 Pounds
Width11 Inches
Part Number2024-07-S
Model2024-07-S
Warranty1 Year

9. AIMS Power

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AIMS Power CON120AC1224DC AC Converter & Battery 12V or 24V Smart Charger 75 amps Listed to UL 458 & CSA

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AIMS Power #ad - Three stage smart charger with variable charging voltage algorithm for maximizing battery life bulk, absorb and float 4 pre-programmed charging algorithms using the dip switches for the most common charging profiles.

Large charging capacity design 75 amp for 12vdc; 37. 5 amp for 24vdc charges a 100 amp hour battery in under an hour up to 90% charge Listed to UL 458 and CSA 22. 2 no. Auto detects DC voltage. 2 year warranty reverse polarity, over voltage, under voltage, over temperature, short circuit protections High AC to DC converting efficiency design >80%. Charges lead acid, agm, gel and lifpo4 batteries. Power supply up to 75 amps at 12Vdc or 37. 5 amps at 24Vdc. Adjustable charge current control dial to safely charge smaller battery s Wide input voltage range, 70Vac to 145Vac for unstable inputs. 107. 1.
BrandAIMS Power #ad
ManufacturerAIMS POWER #ad
Height3.25 Inches
Length10.25 Inches
Weight0 Pounds
Width6.75 Inches
Part NumberCON120AC1224VDC
ModelCON120AC1224VDC
Warranty2 Year