The Rich Solar ALPHA 3 LITE 12V 300Ah LiFePO4 Battery is a lithium iron phosphate battery for compatible RV, cabin, camping, and off-grid electrical storage systems. Identified by SKU RS-B123, it provides 3,840Wh nominal energy at 12.8V with a 300Ah nominal capacity and 300A maximum charging and continuous discharge ratings. This LITE configuration provides integrated battery management protection, while Rich Solar does not list internal heating or Bluetooth communication for this exact ALPHA 3 LITE specification sheet. Rich Solar lists ≥4,000 cycles, an IP65 waterproof and dustproof rating, and a UL94 V-0 flame-retardant plastic shell for this exact battery. Rich Solar lists the ALPHA LITE Series under a five-year prorated limited warranty, with full replacement coverage in year 1 and prorated replacement coverage in years 2–5, subject to its complete warranty terms and installation requirements.
The ALPHA 3 LITE provides 300Ah nominal capacity with 3,840Wh nominal energy for properly designed 12V electrical systems. Its documented 300A maximum charging and continuous discharge ratings require compatible charging equipment, wiring, overcurrent protection, inverter loads, and connected-load planning.
This battery is listed with 150A standard charging and discharge current ratings, plus 300A maximum charging and continuous discharge ratings. These documented limits give installers and system planners clear values to consider when selecting compatible charging equipment, cable sizes, protection devices, and connected loads.
The built-in battery management system supports overcharge, over-discharge, over-current, short-circuit, temperature, and cell-balancing protection functions. The official specification sheet also lists charging low-temperature protection, making documented operating-temperature limits important for seasonal and mobile applications.
The RS-B123 is the ALPHA 3 LITE configuration and should not be confused with the standard ALPHA 3 model. Rich Solar does not list communication mode or internal heating for this LITE specification sheet, while the separate standard ALPHA 3 product page identifies Bluetooth and internal heat technology.
With 3,840Wh nominal energy and a 20.5" × 10.6" × 8.7" footprint, the ALPHA 3 LITE provides substantial lithium storage for compatible mobile and off-grid system layouts.
For battery-bank installations, follow the manual's terminals-up mounting guidance and parallel-connection requirements, including matching batteries and correctly sized system components.
Need help choosing the right lithium battery for your power system?
Contact TrueStead Supply for battery selection guidance, system-fit support, and quote assistance.
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Contact Us for a Quote| Brand | Rich Solar |
| Series | ALPHA LITE Series |
| Model | ALPHA 3 LITE |
| SKU / Model Number | RS-B123 |
| Product Type | Lithium iron phosphate (LiFePO4) battery |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 300Ah |
| Nominal Energy | 3,840Wh |
| Charging Voltage | 14.4V |
| Discharge Cutoff Voltage | 10.0V |
| Standard Charging Current | 150A |
| Maximum Charging Current | 300A |
| Standard Discharge Current | 150A |
| Maximum Continuous Discharge Current | 300A |
| Cycle Life | ≥4,000 cycles with ≥70% capacity retention under the manual’s stated 77°F ±3.6°F test conditions |
| Battery Management System | Integrated BMS with documented overcharge, over-discharge, over-current, short-circuit, charge/discharge temperature-protection, and balancing functions |
| Communication Mode | Not listed for ALPHA 3 LITE configuration |
| Internal Heating | Not listed for ALPHA 3 LITE configuration |
| Ingress Protection | IP65 waterproof and dustproof rating listed by Rich Solar |
| Shell Material | Plastic shell; UL94 V-0 flame-retardant rating listed by Rich Solar |
| Charging Temperature Range | 32°F to 131°F, with temperature- and state-of-charge-dependent current limits listed by Rich Solar |
| Discharge Temperature Range | -4°F to 140°F |
| Dimensions | 20.5" × 10.6" × 8.7" without handle and terminals |
| Weight | Approximately 71.7 lb / 32.5 kg, as listed in the current specification sheet |
| Parallel Configuration | Maximum of four batteries in parallel; do not mix battery brands, models, or specifications, and use equal-length matching parallel cables with adequately rated busbars according to the manual |
| Included Components | Battery; two SUS304 M8×12 screws; two SUS304 M8×16 screws; two SUS304 M8×20 screws; ALPHA 3 LITE manual |
| Electrical Connection | Electrical power-supply connection must be completed by a qualified electrician according to the manual |
| Mounting Orientation | Install with positive and negative terminals facing upward; do not wall-mount without the required mounting bracket, according to the manual |
| Charging Limitations | Charging current must remain below the maximum charging current; charging voltage should remain below 14.4V; charge only within the specified temperature range; reverse charging is prohibited |
| Warranty | 5-year prorated limited warranty for ALPHA LITE Series; year 1 provides full replacement coverage, with prorated replacement coverage in years 2–5, subject to Rich Solar warranty terms |
