Compatible with AGM, Flooded, Gel, and Lithium batteries.
3-stage charging ensures a 100% full battery charge.
Numerous safety protections.
Smart 3-stage charging: bulk, boost, and float.
Protects your starter battery.
Renogy DC-DC Battery Chargers provide an excellent solution for direct house battery charging from a starter battery. With these chargers being compatible with most alternator types, one gets accurate charging abilities for AGM, Flooded, Gel, and Lithium deep-cycle batteries. The 3-stage charging system and advanced electronic protections guarantee both safe and optimal battery performance. It also features input-output isolation, which provides added safety by eliminating voltage transmission errors. Strong, compact, and durable, these DC-DC chargers are the perfect fit for RVs, commercial vehicles, boats, and yachts, offering reliable power wherever your adventures take you!
Empower Your Journey on the Go
Maximize charging efficiency on the go with enhanced versatility.
Compatible with Multiple Battery Types
The DC-DC battery charger is compatible with various alternator types, providing optimal charging for AGM, Flooded, Gel, and Lithium batteries.
Seamless Charging, Ultimate Safety
Isolated input/output with multifunctional safety technology for error-free and secure house battery charging.
Protect Your Starter Battery
Renogy's DC-DC battery charger works seamlessly with traditional and smart alternators. The included D+ Ignition cable identifies generator starts, safeguarding the starting battery from over-discharge and protecting the generator. (Recommended: 18-16AWG copper cable. D+ Ignition Cable not included.)
Smart Charging Protection
The DC-DC battery charger's LC wire automatically adjusts the charging current, safeguarding the house battery from potential damage due to excessive charging. (Recommended: 18-16AWG copper cable. LC cable not included.)
Smart 3-Stage Charging
The DC-DC battery charger uses a 3-stage charging process (Bulk, Boost, and Float) to efficiently and automatically charge your house batteries from the starter battery, ensuring they reach 100% capacity.
Prolong Battery Lifespan
Automatically adapts charging modes to match battery voltages, while the temperature sensor provides -3mV/°C/2V compensation, ensuring optimal charging in varying temperatures. (Please note that the temperature sensor is not included. If the lithium battery has a built-in BMS, an external temperature sensor is unnecessary.)
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The Renogy Difference
Going solar is not that complicated. Renogy is here to help you build your system faster so you can roam further.
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| Renogy 20A DC to DC Battery Charger | |
|---|---|
| Nominal Voltage: 12V | Rated Charge Current: 60A |
| Output: 750W | Idle Power Consumption: <0.4A |
| Input Voltage Range: 8V-16V | Equalization Voltage: N/A |
| Float Voltage: 13.2-13.8v | Boost Voltage: 14.1-14.7v |
| Operating Temperature: -20°C to +50°C | Dimensions: 12.24 x 6.89 x 2.68 inches / 31.1 x 17.5 x 6.8 cm |
| Weight: 5.29lbs / 2.4kg | |
| Certifications： | |
| CE: YES | ROHS: YES |
| Package includes： | |
| The first option: battery charger x1 | The second option: battery charger x1 and temperature sensor x1 |
Warranty Information
| Accessories | 1-year material warranty |
1. What is a DC-DC charger? What is its purpose?
The DC-DC battery charger is installed between the starter battery and the house battery. For the RV system, The generator ensures stable power supply to the starter battery, and uses the extra power of the starter battery to supply power to the house battery.
2. How to choose a suitable battery charger?
1. Ensure the entire system operates at 12V
2. Ensure that the maximum charging current provided by the DC-DC battery charger does not exceed the maximum charging current allowed by the house battery
2. Ensure that the maximum charging current provided by the DC-DC battery charger does not exceed the maximum charging current allowed by the house battery
3. How to set the charging voltage value of the charger?
The DC-DC battery charger adopts the design of the DIP switch and it provides 6 charging voltage settings through five gears. These six charging voltages meet the requirements of lithium batteries and lead-acid batteries in order to provide more charging options. The SW5 switch is utilized to select between lead-acid and lithium battery types.
4. What is the D+ Ignition cable? Is it necessary to connect?
The D+ Ignition cable is a design method used to identify whether the generator is started. This design method can well prevent the starting battery from being over-discharged during the charging process. When the generator is started, a signal will be obtained on the D+ Ignition cable, which will light up the indicator light of the charger. The DC-DC will not power on or operate until the D+ ignition cable is connected.
5.How can I get these cables?
The battery temperature sensor for DC-to-DC car battery chargers can be purchased at the Renogy store. The D+ Ignition cable is available at local stores or online and is compatible with both D+ and LC terminals. 18-16AWG copper cable recommended.
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