RICH SOLAR
RICH SOLAR 12V 20A DC-DC Battery Charger for RV, Van, Boat, Off-Grid Lithium & Lead-Acid Batteries
RICH SOLAR 12V 20A DC-DC Battery Charger for RV, Van, Boat, Off-Grid Lithium & Lead-Acid Batteries
SKU: RS-DC20
- Regular price
- $119.99
- Regular price
- Sale price
- $119.99
- Unit price
- per
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- Warranty information is listed in this product's details.
Alternator-aware charging for a 12V auxiliary battery
Charge a 12V house battery at up to 20A—or select 10A low-current mode.
The RICH SOLAR RS-DC20 is a 12V-to-12V DC-DC charger for RVs, vans, boats and work vehicles. It regulates alternator power for lithium and lead-acid auxiliary batteries, with a 10A low-current mode for systems that need a gentler load on the source.
At a glance
The current and voltage limits that define fit
The published input-current limit is 34A. Confirm alternator capacity, starter-battery behavior, cable loss and the auxiliary battery's charge-current limit before selecting conductors and protection.
System fit
Plan the two batteries, alternator and cable run as one circuit.
Allow for the 8.4 × 7.4 × 3.1 in enclosure and 4.0 lb weight in a protected, ventilated location. Size input and output conductors from maximum current, run length, voltage drop, terminal capacity and local requirements.
In the box
What this RS-DC20 listing covers
- 1 × RICH SOLAR RS-DC20 20A DC-DC battery charger
D+ wire, low-current control wire, temperature sensor, battery cables, lugs, fuses or breakers, disconnects and installation labor are not listed as included.
Product confidence
Use the current charger and vehicle manuals together
Installation, battery settings, alternator integration, environmental limits and warranty remedies follow the current written RICH SOLAR instructions and policy.
Common questions
RS-DC20 installation questions
Will it charge LiFePO4 batteries?
Yes, a lithium profile is listed. Confirm the exact battery's required charge voltage, temperature rules and maximum charge current before selecting it.
Why use 10A low-current mode?
It reduces charging demand on the alternator and wiring when the source or battery should not support the full 20A setting.
Does it work with a 24V alternator or battery?
No. This model is published for 12V input and a 12V auxiliary battery.
Is the temperature sensor used with lithium?
RICH SOLAR identifies the RJ11 temperature sensor function for temperature compensation and notes it is not for lithium batteries. Follow the battery-specific charging instructions.
Product Data
Technical Specifications
| Output Nominal Power | 250W |
|---|---|
| Output Nominal Current | 20A |
| Operating Current Range | 18~22A |
| Low Current Mode | 10A |
| Floating Charge Current | 3~5A |
| Low Current Mode Current Range | 8~11A |
| Quiescent Current | ＜0.45A |
| Ripple Voltage | ＜500mV rms |
| Battery Charging Mode | 2-stage for lithium; 3-stage for lead-acid |
| Efficiency | >85%, @14VDC 30% load |
| Input Nominal Voltage | 12VDC |
| Operating Voltage Range | 10~16VDC |
| Input Current Limit | ≤34A |
| Dimensions | 8.4*7.4*3.1 in |
| Weight | 4.0 lb |
Available configurations
| Option | SKU |
|---|---|
| Single configuration | RS-DC20 |
Manufacturer Documentation
Official Manuals, Specifications & Certifications
Use these current RICH SOLAR documents for installation, compatibility, limits, and revision-specific details. The delivered product label and its exact manual are the controlling sources.
Review the current manufacturer manual for your exact model before installation or use.
Why Buy From Us
Shop with confidence at Torven Power.
Free shipping, 30-day returns and a Torven team ready to help.
Ordering Information
Shipping & Returns
Free shipping in the Lower 48: Standard delivery includes residential delivery and liftgate service when needed, with no fuel surcharge or order minimum. We send tracking when available, and the freight carrier contacts you to schedule delivery.
30-day returns: Contact Torven within 30 days of delivery and we will help you get started. See the return policy for item condition and return-shipping details.
Delivery problem? We are here to help. Contact Torven with your order number and photos. We will handle the claim coordination with the supplier and carrier and help arrange a resolution. Return shipping is covered for approved damage, defect or incorrect-item returns.
RICH SOLAR
RICH SOLAR 12V 20A DC-DC Battery Charger for RV, Van, Boat, Off-Grid Lithium & Lead-Acid Batteries
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