Top 9 12V DC to DC On-Board Battery Charger – Battery Chargers

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1. Renogy

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Using Multi-Stage Charging in RVs, 40A, Boats, and Lithium, Gel, Commercial Vehicles, AGM, Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Yachts

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Renogy #ad - Ce certification. Smart 3-stage charging the dc-dc battery charger will charge your house batteries from the starter battery by 3-stage charging Bulk, Boost, and Float, to make sure it optimally and automatically charge to 100%.

Compatible multiple battery types compatible with a multitude of alternator types, the DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries. Various protections for ultra safety offers over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure the operation safety. It also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging.

Reliable qualitythe compact and robust design makes it suitable for all conditions. Protect your starter batterythe dc-dc battery charger is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator.
BrandRenogy #ad
ManufacturerRenogy #ad
Height2.7 Inches
Length10.28 Inches
Width6.89 Inches
Part NumberRNG-DCC
Model40A
Warrantyaccessories1-year material warranty

2. Renogy

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Recommended to Match with 60A ANL Fuse, AGM, Boats, and Lithium Batteries Using Multi-Stage Charging, Yachts, Cars, Renogy 12V 50A DC On-Board Input MPPT Charger for Gel, in RVs

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Renogy #ad - 3-phase mppt charging technology with built-in maximum power point tracking mppt, renogy dc-dc On-Board Battery Charger will charge your service batteries with maximized solar power, providing 3-phase charging Bulk, Boost and Float to regulate the whole charging and ensure the batteries will be accurately charged at the correct voltage levels to 100%.

Exclusively available with the bt-2 bluetooth module accessory and Renogy DC Home App available on the IOS and Google Play Stores, you can monitor this device remotely and simply through your phone and stay constantly updated. Multiple protections renogy dc-dc on-board battery charger has multiple intelligent protections includes battery isolation, over-current protection, overheat protection, over-voltage protection, reverse current protection, solar panel and alternator reverse polarity protection, battery temperature protection, guaranteeing charging safety and protecting you batteries. Light & small, ready to be set upwith only 9.

6in in length, 5. 7in in height, renogy dc-dc on-board Battery Charger is ready to be installed and adapt to any tiny narrow installation space, and 3. 13lbs in weight, resolving your concern from limited room in you vehicle. Recommended to match with 60a anl fuseThe Renogy ANL fuse will protect your controller, wire, and battery from overcurrent. Multi-input for battery chargingrenogy dc-dc on-board battery Charger is designed to charge service batteries from a starting battery linked to an alternator or by utilizing solar panels connected directly to the unit, offering multiple charging options and ensuring your battery stay fully charged.
BrandRenogy #ad
ManufacturerRenogy #ad
Height3 Inches
Length9.6 Inches
Weight3.31 Pounds
Width5.7 Inches
Part Numberfor Flooded, Gel, AGM
Model12V 50A
WarrantyNo Warning

3. Kanruis

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Calcium, VRLA Battery with Multi-Protections Multi-Stage Charging, Kanruis 12V 20A DC to DC On-Board Battery Charger for AGM, LiFePO4, Gel

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Kanruis #ad - Battery-friendly: use pulse charging algorithm, which is designed to select the optimum charge mode and revive your discharged battery. And multi-stage charging integrates bulk charge, absorption and constant/float voltage to improve efficiency and extend battery lifespan.

Dual input: priority to charge from the main battery, and then from solar panel, no relay or switching required. Superior design: heavy duty aluminum case and mounting brackets contributes to resist harsh conditions and high quality wires ensure long last durability. The built-in mppt regulator help to harvest more energy from the solar panel. Safe and reliable: the charger integrates over charging, short circuit, over temperature, thermal overload, solar input overload and input/output reverse polarity protection. Compatible with smart alternator, the ACC wire can be wired to the ignition to adjust voltage cut off, which is suitable for modern vehicle, trailers and caravans.

Microchip monitoring and control, fully automatic high frequency multi-stage charging. Application: this 20a dc to dc battery charger is sophisticated multi stage charger, utilizing switch mode and fully automatic computerized control, designed to charge most 12V AGM/Gel, Lead Acid LiON and Calcium batteries. Its power-off memory function ensures that it will keep the battery type until it is changed.
BrandKanruis #ad
ManufacturerKanruis #ad
Part NumberVABG004-ORD

4. ATEM POWER

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AGM, Multiple Protection Design On-Board Charger, Calcium, Lion Batteries, Gel, ATEM POWER 12V 20A DC to DC Battery Charger with Solar Input MPPT Controller for Lead Acid

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ATEM POWER #ad - Solid protection: over-chargeleave your device connected indefinitely, thermal load, solar input overload, over-temperature, short circuit, input/output reverse polarity protection are incorporated, as well as quality wires and aluminum housing.

Convenient & versatility: it is ideal for campervans, 4WDs, trailers, trucks, caravans, campers, RVs, commercial vehicles and boats, and the LED indicator shows real-time charging stage and memory function makes your charging more convenient. Re-selection ready: this atem power dc to dc charger, lion batteries, compatible with Lead Acid, AGM, gel, calcium, allows you to re-select the battery during charging by long pressing “POWER”. Optimized performance: besides effectively pulling power from solar panel or vehicle’s alternator to charge your auxiliary battery, pre-charge, this charger has incorporated a built-in MPPT that can increase solar panel’s efficiency by up to 30%! Efficient charging: this charger integrates standby, constant current charging, full charge and re-charge stages, constant voltage charging, and upgraded algorithm selects the optimum mode and revives your discharged battery.

BrandATEM POWER #ad
ManufacturerATEM POWER #ad
Height1.73 Inches
Length19.3 Inches
Weight2.31 Pounds
Width5.59 Inches
Part NumberVABG007A-UFA

5. dkplnt

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Commercial Vehicles, dkplnt 12V 20A DC to DC On-Board Battery Charger 12V to 14.5V Converter for Flooded, Yachts with Acc Ignition Control, Boats, and Lithium, AGM, Gel, Smart Charging in RVs

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dkplnt #ad - The dc-dc battery charger is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator.

Acc ignitioncan be connected to acc to ignition or switch. Multi-chemistry battery TypesAGM, Flooded, Gel, and Lithium. Output voltagestable output voltage is 14. 5vdc (during the charging process, the charging voltage of the battery will gradually increase until it reaches 14. 5v). Smart chargingthe dc-dc battery charger will charge your house batteries from the starter battery by Bulk and Float charging to make sure it optimally and automatically charge to 100%. Input voltage range12vdc-16vdc(can be connected to 12V battery/auto generator).
Branddkplnt #ad
Manufacturerdkplnt #ad
Part Number12V to 14.5V Converter

6. Renogy

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Battery Temperature Sensor for 12V 20A/40A/60A DC to DC on-board Battery Charger

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Renogy #ad - Easily installed with rj11 connector, cable length: 118 inchestemperature range: -20 ~ +80 . Simply connect the cable and adhere the sensor on top or the side of the HOUSE BATTERY to record ambient temperature around the battery.

Tmeperature measurement can be realized close to any part of the battery. Remote temperature sensor to active temperature compensation function of solar charge controller. Worry-free service renogy provides complete after-sales service, including 1-year material and easy-to-reach customer support. This temperature sensor is compatible with Renogy 12V 20A/40A/60A DC to DC on-board Battery Charger.
BrandRenogy #ad
ManufacturerRenogy #ad
Part NumberRTSDCC-G1
ModelBattery Temperature Sensor
Warranty1-year material warranty

7. Victron Energy

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Isolated Bluetooth, Victron Energy Orion-Tr Smart 12/12-Volt 30 amp 360-Watt DC-DC Charger

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Victron Energy #ad - Output current at nominal output voltage and 40°C: 30A - Maximum output current 10 s at nominal output voltage minus 20%: 40A. Input voltage range: 10-17v - output voltage adjust range: 10-15v - cont.
BrandVictron Energy #ad
ManufacturerVictron Energy #ad
Height7.32 Inches
Length2.76 Inches
Weight3.97 Pounds
Width5.12 Inches
Part NumberORI121236120
ModelORI121236120

8. PowMr

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Flooded and Lithium Battery, Trailers, Boats, Gel, 50A DC On-Board Input Battery Charger 12V/24V Mppt Solar Charge Controller w/LCD Display DC-DC Converter for AGM, Yachts Isolated, Used in RVs

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PowMr #ad - 50amp dc-dc battery charger solar controller with built-in maximum power point tracking mppT Charging Technology, Boost, providing 4-phase charging Bulk, On-Board Charge Controller charge your Service Batteries with maximized solar power, Float and Equalization to regulate the whole charging and ensure the batteries will be accurately full charged at the health voltage levels.

Support sealed battery, gel battery, vented Battery, User-defined Battery and Car's Conventional/Intelligent Euro 6 Standard Generator. Controller with heavy built good quality heat sink to cool down controllers working temp. This dc-dc controller are used in dual battery system, where the alternator and the start battery are combined with the service batteryof equal or different voltagesto charge it, also take PV power to charge the service battery and start battery. Solar charge controller 50amp, over-current protection, overheat protection, solar panel and alternator reverse polarity protection, reverse current protection, Multiple Protections, battery temperature protection, intelligent protections includes battery protection, over-voltage protection, guaranteeing charging safety and protecting Car starter batteries and Service batt.

On-board battery charger 50a controller is designed to charge rv's service batteries from car's starting battery linked to an alternator or by utilizing solar panels connected directly to the unit, Lithium Iron Phosphate Battery, offering multiple charging options and ensuring your battery stay fully charged. Rj45 communication port spport, Phone App optional, support monitor your system remotely and simply through your phone. This 50a controllker with very detail display and 4 indicators easy to see system's working status and Real-time data.
BrandPowMr #ad
ManufacturerPowMr #ad
Part NumberPOWMD1250N05ER

9. Victron Energy

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Isolated Bluetooth, Victron Energy Orion-Tr Smart 12/24-Volt 10 amp 240-Watt DC-DC Charger

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Victron Energy #ad - Output current at nominal output voltage and 40°C: 10A - Maximum output current 10 s at nominal output voltage minus 20%: 25A. Input voltage range: 8-17v - output voltage adjust range: 20-30v - cont.
BrandVictron Energy #ad
ManufacturerVictron Energy #ad
Height7.32 Inches
Length2.76 Inches
Weight2.87 Pounds
Width5.12 Inches
Part NumberORI122424120
ModelORI122424120