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Rich Solar ALPHA 3 LITE | 12V 300Ah LiFePO4 Battery | 12V Lithium Battery for RVs, Cabins, Off-Grid | 4,000 Lifetime Cycles - RS-B123
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Rich Solar ALPHA 3 LITE 12V 300Ah LiFePO4 Battery
The Rich Solar ALPHA 3 LITE is a high-capacity 12V 300Ah lithium iron phosphate battery built for RVs, trailers, vans, boats, cabins, and off-grid solar power systems. With long-service LiFePO4 performance, IP65 waterproof and dustproof protection, a UL94 V-0 flame-retardant shell, and a sophisticated Battery Management System, it gives 12V power builds a dependable lithium storage upgrade without unnecessary complexity.
Product Overview
The ALPHA 3 LITE is designed for customers who need a high-capacity 12V lithium battery for mobile, marine, cabin, and off-grid power systems. It is a strong fit for RV solar battery banks, camper vans, travel trailers, boats, sheds, tiny homes, and backup power systems where usable capacity and long-term reliability matter.
Compared with traditional lead-acid batteries, LiFePO4 chemistry offers longer service life, a higher number of charge and discharge cycles, lower maintenance, and a lighter, more compact design. For customers upgrading a 12V battery bank, the ALPHA 3 LITE keeps the setup simple while delivering serious storage capacity.
Simple, Durable Lithium Storage
This LITE version focuses on the essentials: long-service lithium performance, IP65 protection, flame-retardant housing, safety-tested construction, and smart BMS protection. It is built for customers who want dependable 12V storage without paying for extra features they may not need.
The lightweight, compact design also makes it easier to fit into RV compartments, boat storage areas, trailer builds, and compact off-grid setups where space and weight are always important.
Key Features That Matter
The original manufacturer description is limited, so this section turns the actual feature list into useful customer-facing information without turning the product page into a long spec sheet.
Built for long-term lithium battery use, the ALPHA 3 LITE supports a high number of charge and discharge cycles while requiring less maintenance than traditional lead-acid storage.
IP65 protection helps guard the battery against dust and water exposure, making it better suited for RV compartments, boats, trailers, cabins, and off-grid installations.
The plastic shell is rated UL94 V-0 for flame retardancy, adding another layer of safety confidence for enclosed battery compartments and installed power systems.
The Battery Management System helps protect the battery during daily use by managing safety conditions across charging, discharging, and system operation.
The ALPHA 3 LITE is safety tested for extreme performance conditions, helping reduce the risk of fire, explosion, or leakage under demanding use.
Designed as green energy storage without metal contaminants, this LiFePO4 battery is a cleaner, lower-maintenance replacement for older lead-acid battery banks.
Best Uses
- RV solar battery banks
- Camper vans and travel trailers
- Marine and boat electrical systems
- Cabin, shed, and tiny home power setups
- Off-grid solar energy storage
- Backup power for essential 12V loads
- Lead-acid battery replacement projects
Key Benefits
- 12V 300Ah LiFePO4 lithium battery
- Long-service lithium iron phosphate design
- 4,000 lifetime cycles
- IP65 waterproof and dustproof protection
- UL94 V-0 flame-retardant plastic shell
- Lightweight, compact battery design
- Green energy storage without metal contaminants
- Safety tested for extreme performance conditions
- Sophisticated Battery Management System
| Specifications | |
| Model SKU | RS-B123 |
|---|---|
| Battery Type | LFP Battery |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 300Ah |
| Minimum Capacity | 300Ah |
| Nominal Energy | 3,840Wh |
| Charging Voltage | 14.4V |
| Discharging Cutoff Voltage | 10.0V |
| Standard Charging Current | 150A |
| Maximum Charging Current | 300A |
| Standard Discharge Current | 150A |
| Maximum Continuous Discharge Current | 300A |
| Shell Material | Plastic Shell |
| Waterproof Class | IP65 |
| Weight | 71.7 lbs / 32.5kg |
| Initial AC (1000Hz) Internal Resistance | ≤50mΩ (New Battery within 3 Months) |
| Monthly Self-Discharge Rate | ≤5% |
| Overall Dimensions | 20.5 x 10.6 x 8.7 in |
| Cycle Life (77°F ± 3.6°F) | ≥4,000 |
| Discharge Temperature | -4°F to 140°F / -20°C to 60°C |
| Storage Temperature | -4°F to 113°F / -20°C to 45°C, 90% RH Max (Less than 1 Month); 32°F to 95°F / 0°C to 35°C, 90% RH Max (More than 3 Months) |
| Recommended Storage Temperature | 50°F to 95°F / 10°C to 35°C, 85% RH Max |
| BMS Operation | |
| Typical Charging Current | 150A |
| Maximum Charging Current | 300A |
| Typical Discharge Current | 150A |
| Maximum Discharge Current | 300A |
| Maximum Charge Voltage (CC/CV) | 14.4V |
| Over Charge Protection Voltage (Cell) | 3.65V ± 0.05V |
| Over Charge Protection Delay Time | 2,000ms ± 1,000ms |
| Over Charge Protection Recovery Voltage (Cell) | 3.50V ± 0.05V |
| Over Discharge Protection Voltage (Cell) | 2.30V ± 0.10V |
| Over Discharge Protection Delay Time | 2,000ms ± 1,000ms |
| Over Discharge Protection Recovery Voltage (Cell) | 3.00V ± 0.10V |
| Over Discharge Protection Release Conditions | Self-Recovery by Increasing Voltage or Charging |
| Primary Charge Overcurrent Protection Value | 315A ± 10A |
| First Stage Charge Overcurrent Delay Time | 5s (Min 2s, Max 7s) |
| Overcurrent Charge Release Conditions | Automatic Recovery After a Delay of 32 ± 7s |
| Primary Discharge Overcurrent Protection Value | 320A ± 10A |
| Primary Discharge Overcurrent Protection Delay Time | 10s ± 3s |
| Secondary Discharge Overcurrent Protection Current Value | 1,240A ± 100A |
| Secondary Discharge Overcurrent Protection Delay Time | 640ms (Min 480ms, Max 1,000ms) |
| Overcurrent Discharge Release | Automatic Recovery After a Delay of 32s ± 7s |
| Short Circuit Protection Value | 2,240 ± 300A |
| Short Circuit Protection Delay Time | 400μs to 600μs |
| Short Circuit Protection Recovery | Automatic Recovery by Releasing the Load After Approximately 5s ± 2s |
| Discharge High Temperature Protection Value | 140°F ± 5.4°F / 60°C ± 3°C |
| Discharge High Temperature Protection Release Value | 131°F ± 5.4°F / 55°C ± 3°C |
| Discharge Low Temperature Protection Value | -4°F ± 5.4°F / -20°C ± 3°C |
| Discharge Low Temperature Protection Release Value | 14°F ± 5.4°F / -10°C ± 3°C |
| Charging High Temperature Protection Value | 131°F ± 5.4°F / 55°C ± 3°C |
| Charging High Temperature Protection Release Value | 113°F ± 5.4°F / 45°C ± 3°C |
| Charging Low Temperature Protection Value | 37.4°F ± 5.4°F / 3°C ± 3°C |
| Charging Low Temperature Protection Release Value | 46.4°F ± 5.4°F / 8°C ± 3°C |
| FET (Built-In) High Temperature Protection Value | 188.6°F to 199.4°F / 87°C to 93°C |
| FET (Built-In) High Temperature Protection Release Value | 152.6°F to 163.4°F / 67°C to 73°C |
| Balanced Opening Voltage | 3.40V ± 0.03V |
| Balanced Opening Pressure Difference | 15mV |
| Balanced Current | 140mA |
| Operation Temperature | -4°F to 167°F / -20°C to 75°C |
| Storage Temperature | 23°F to 104°F / -5°C to 40°C (Humidity Below 70%, Time ≤ 1 Year) |
