Rich Solar 12V 20Ah LiFePO4 Battery | 256Wh RS-B1220 Rich Solar 12V 20Ah LiFePO4 Battery | 256Wh RS-B1220
SKU: RS-B1220
- Battery chemistry: LiFePO₄
- Nominal voltage: 12.8V
- Capacity per battery: 20Ah
The RS-B1220 is a compact LiFePO4 battery for a small compatible DC power system. Its 256Wh nominal capacity and 4.6 lb weight suit installations where a full-size RV battery would add unnecessary size and weight.
Size the load, not just the capacity
Check both runtime and current demand. The battery supports up to 30A continuous discharge; a device with a high starting surge may need a different battery even when its running consumption looks modest. AC appliances also require a separately selected inverter.
A defined fit for a small battery compartment
The current manufacturer dimensional drawing and datasheet agree on 7.1 × 3.1 × 6.5 inches. Allow additional space for the M6 terminal connections, cable bends and secure mounting.
Use a compatible lithium charging profile
Use CC/CV charging within the documented voltage, current and temperature limits. The recommended charge current is 10A, with a 20A maximum. Charging is specified from 32°F to 131°F; do not interpret cold-weather use as permission to charge below freezing.
| Model | RS-B1220 |
|---|---|
| Nominal Voltage | 12.8V |
| Rated Capacity | 20Ah |
| Nominal Energy | 256Wh |
| Chemistry | LiFePO4 |
| Cycle Life | 3,000+ cycles (manufacturer rating) |
| Maximum Charge Voltage | 14.4V |
| Recommended Charge Current | 10A |
| Maximum Charge Current | 20A |
| Maximum Continuous Discharge Current | 30A |
| Discharge Cutoff Voltage | 10.0V |
| Charge Temperature | 32°F to 131°F |
| Discharge Temperature | -4°F to 140°F |
| Parallel Expansion | Up to 4 units |
| Terminals | M6 |
| Dimensions (L × W × H) | 7.1 × 3.1 × 6.5 in |
| Net Weight | 4.6 lb |
| Selected variant SKU | RS-B1220 |
Frequently Asked Questions
Clear answers to common questions about this product, setup, compatibility, and use.


