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The Rich Solar ALPHA 3 MINI 12V 314Ah LiFePO4 Battery (model RS-B123M) stores 4,019Wh at 12.8V and delivers up to 200A of continuous discharge current. Rich Solar rates it at about 40% smaller in volume than standard 12V 314Ah batteries, at 15.1 x 7.6 x 9.9 inches and 61.7 pounds.
It's built for RVs, marine systems, off-grid cabins and backup power. A 100W internal heater supports charging in freezing weather, Bluetooth links it to the RICH SOLAR app, and the IP65-rated, flame-retardant case suits demanding spaces. Rich Solar backs it with a 5-year limited warranty.
The ALPHA 3 MINI holds 314Ah at a nominal 12.8V. Rich Solar's MINI design takes about 40% less volume than standard 12V 314Ah batteries, so it's easier to place in a battery bay or cabinet. Monthly self-discharge is 5% or less, and the LiFePO4 chemistry is maintenance-free.
Rich Solar rates the Grade A+ LiFePO4 cells for more than 5,000 cycles at 80% depth of discharge. That long service life cuts how often you need to replace your house battery.
A 100W heater turns on when the battery's internal temperature drops to 41°F or below and a charging current is present. It turns off at 50°F or when you disconnect the charger. The heater runs only on charging power, never on the battery's own stored energy. Low-temperature charging protection recovers automatically once the cells are warm enough.
Pair the battery with the RICH SOLAR app on iOS or Android to track state of charge, voltage, current, temperature, cycle count and system status from your phone.
The battery accepts up to 200A of charge current, with 157A recommended, and supplies up to 200A of continuous discharge current. Charge with a CC/CV charger at a recommended 14.2V and never above 14.4V. The discharge cutoff is 10.0V.
The housing is UL94 V-0 flame-retardant plastic with an IP65 rating. The BMS protects against over-charge, over-discharge, charge and discharge over-current, short circuits, high or low temperatures while charging or discharging, and internal FET overheating, with passive cell balancing.
Connect up to four ALPHA 3 MINI batteries in parallel (4P) as your system grows. M8 terminals take 97.4 ± 10.6 lbf·in of torque, and a handle on each end makes the battery easier to lift into place.
RVs and motorhomes. Fit 4,019Wh into a battery bay that has limited room, and charge through winter with the built-in heater.
Boats. Rich Solar lists marine systems among its uses, and the IP65-rated case adds protection against dust and water.
Off-grid cabins. Start with one battery and build a 12V bank of up to four as your cabin system grows.
Home backup. Keep a 12V backup system ready, with app monitoring to check its charge level.
Both store about the same energy at 12V. Rich Solar says the ALPHA 3 MINI takes about 40% less volume than standard 12V 314Ah batteries, while still offering 200A continuous discharge, Bluetooth and internal heating. Measure your space against its 15.1 x 7.6 x 9.9 inch case before you order.
A LiFePO4 battery without a heater can't charge safely until its cells warm above freezing. The ALPHA 3 MINI uses charging power to warm itself from 41°F up to 50°F, then charges normally, which helps in RVs and cabins used through the winter.
Set the battery upright with the terminals facing up, and don't mount it on a wall without a mounting bracket. Before you connect batteries in parallel, charge each one fully on its own so the voltage difference between them is within 1V. Use cables of the same length and size, and never mix brands, models or specifications. Rich Solar calls for a qualified electrician to connect the power supply.
Keep charging current at or below 200A and charging voltage at or below 14.4V. The battery ships at about 30% state of charge by air or about 50% by sea. For storage longer than three months, keep it between 50°F and 95°F, charge and discharge it every three months and hold it at 40 to 50% state of charge.
Yes, with a charger connected. When the internal temperature is 41°F or below, the heater warms the cells using charging power and switches off at 50°F. Without a charger, the heater stays off.
The app shows state of charge, voltage, current, temperature, cycle count and system status over Bluetooth. Find it in the App Store or Google Play by searching for RICH SOLAR.
That means the BMS has shut the battery off after an over-discharge, over-charge or over-current event. Connect a lithium-compatible charger. It detects the low voltage, wakes the BMS and normal charging resumes.
Up to four ALPHA 3 MINI batteries in parallel (4P). Use only identical batteries and matched cables.
Rich Solar backs the ALPHA 3 MINI with a 5-year limited warranty.
The Rich Solar ALPHA 3 MINI 12V 314Ah LiFePO4 Battery brings 4,019Wh, 200A continuous discharge, built-in heating and Bluetooth monitoring to 12V systems with limited room. If you'd like help sizing a battery bank or planning a parallel setup, the Outbound Power team is happy to help.
Rich Solar ALPHA 3 MINI 12V 314Ah LiFePO4 Battery Specifications |
|
|---|---|
| Model | RS-B123M |
| Battery | |
| Product Name | ALPHA 3 MINI |
| Nominal Voltage | 12.8V |
| Rated Capacity | 314Ah |
| Nominal Energy | 4,019Wh |
| Cell Chemistry | LiFePO4 |
| Cycle Life (80% DoD) | 5,000+ cycles |
| Monthly Self-Discharge | 5% or less |
| Parallel Connection | Up to 4 units (4P) |
| Charge and Discharge | |
| Charging Method | CC/CV |
| Recommended Charge Voltage | 14.2V |
| Maximum Charge Voltage | 14.4V |
| Discharge Cutoff Voltage | 10.0V |
| Recommended Charge Current | 157A |
| Maximum Charge Current | 200A |
| Maximum Continuous Discharge Current | 200A |
| Charge Temperature | 32°F to 131°F |
| Discharge Temperature | -4°F to 140°F |
| Storage Temperature (Under 1 Month) | -22°F to 131°F, 90% RH max |
| Storage Temperature (Over 3 Months) | 14°F to 113°F, 90% RH max |
| Recommended Long-Term Storage | 50°F to 95°F (10°C to 35°C), 85% RH max, 40-50% SOC |
| Features | |
| Bluetooth | Yes, RICH SOLAR app |
| App Monitoring | SOC, voltage, current, temperature, cycle count, system status |
| Internal Heating | Yes (100W) |
| Heater On | 41°F (5°C) or below, while charging |
| Heater Off | 50°F (10°C) or above, or charger disconnected |
| Low-Temperature Charging Protection | Yes, automatic recovery |
| Voltage Protection | Over-charge and over-discharge |
| Current Protection | Charge and discharge over-current, short circuit |
| Temperature Protection | High/low temperature charging and discharging, internal FET over-temperature |
| Cell Balancing | Passive |
| Physical | |
| Terminals | M8 |
| Terminal Torque | 97.4 ± 10.6 lbf·in |
| Ingress Protection | IP65 |
| Housing | UL94 V-0 flame-retardant plastic |
| Dimensions (L x W x H) | 15.1 x 7.6 x 9.9 in (384 x 194 x 252 mm) |
| Net Weight | 61.7 lb |
| Certifications and Warranty | |
| Certifications | UN 38.3, MSDS |
| Warranty | 5-year limited warranty |
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