Renogy 12V 20A DC-DC Battery Charger
Recharge from the source your installation can use
A battery bank is only as useful as the charging arrangement behind it. This Renogy charging component helps you use the power source and battery system identified by the exact model below. Match the unit to the battery voltage, chemistry, charging-current limits and available input before ordering.
Selected equipment: RENOGY 12V 20A DC-DC Battery Charger. Manufacturer order SKU: RBC20D1U-G2-US.
Choose it for your actual loads and installation
A solar controller, alternator-fed DC-to-DC charger and AC battery charger perform different jobs. Check this model’s input requirements and supported battery settings rather than treating equal amp ratings as interchangeable. For solar inputs, verify the array’s open-circuit voltage and power against the limits; for alternator charging, check vehicle compatibility and the required sensing or ignition connection.
Technical details
| System Voltage | 12V–12V |
|---|---|
| Supported Battery Type | Starter battery: Gel Auxiliary battery: SLD, AGM, flooded, lithium, and gel; User Mode |
| Input Voltage Range | 9V-16V |
| Output Voltage Range | 9V-16V |
| Maximum Rated Charge Current | 20A |
| Maximum Input Power | 300W @ 20A |
| Weight | ≤ 3.3 lbs (1.5 kg) |
| Dimensions | 9.31 x 5.17 x 2.30 in (236.5 x 131.5 x 58 mm) |
| Cable | Model |
| Maximum Combined Charging Current | Maximum at 20A. Adjustable at 20A and 10A. |
| No-Load Current Consumption | < 15 mA |
| Communication | Bluetooth |
| Protection Mechanisms | Auxiliary battery: Overvoltage, overdischarge shutdown, overtemperature, and short-circuit protection; Starter battery: Reverse contact and short-circuit protection |
| Derating | < 45°C: Full load; > 45°C: Non-full load; ≥ 60°C: Stop working |
| Storage Temperature | -40°F to 185°F (-40°C to 85°C) |
| Operating Humidity | 0% to 95% RH, no condensation |
| Cooling | Natural cooling |
| Operating Altitude | ≤ 3000m |
| Noise | < 40 dB |
Check the fit and what is included
Include the entire charging path in your design: cable length and gauge, fuses or breakers, ventilation and battery temperature all matter. Bluetooth modules, displays, temperature sensors and monitoring panels are included only when named in the selected option or the manufacturer’s contents. Use the current manual to set the charging profile and installation sequence.
Delivery and manufacturer warranty
Free standard shipping within the contiguous 48 United States. Ships from Renogy’s US fulfillment network. Alaska, Hawaii and US territories are outside this shipping offer. Availability is checked with the supplier; shipment timing depends on the selected equipment and destination.
Manufacturer coverage: 2-year material and workmanship warranty. Renogy assesses eligible claims under its limited-warranty terms, including installation, use and documentation requirements.