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Rich Solar ALPHA 5 | 48V 100Ah LiFePO4 Battery | Premium 48V Server Rack Lithium Battery for Residential, Commercial, Off-Grid | 7,000 Lifetime Cycles - 1 Battery Rich Solar ALPHA 5 | 48V 100Ah LiFePO4 Battery | Premium 48V Server Rack Lithium Battery for Residential, Commercial, Off-Grid | 7,000 Lifetime Cycles
SKU: RS-B4811
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Rich Solar RS-B4811 48V 100Ah LiFePO4 Lithium Battery
The Rich Solar RS-B4811 is a 48V 100Ah lithium iron phosphate battery built for off-grid solar systems, backup power, battery storage, cabins, workshops, and larger 48V inverter setups. With 4.8kWh of energy storage, 7,000 charge and discharge cycles, built-in BMS protection, and parallel expansion support, it gives solar power systems a long-life battery foundation.
Product Overview
The Rich Solar RS-B4811 is designed for customers who need dependable 48V battery storage for solar, backup power, and off-grid energy systems. Compared to many older battery technologies, LiFePO4 chemistry offers longer cycle life, lower maintenance needs, stable output voltage, and stronger thermal and chemical stability.
This battery is a practical fit for 48V solar inverter systems, cabin power setups, remote buildings, backup power systems, and larger battery banks where long life, safety protection, and expandable storage are important. It can be connected in parallel for larger capacity when the system is designed and configured correctly.
The built-in smart battery management system helps protect the battery from overcharging, over-discharging, overcurrent, short circuits, and high or low temperature conditions.
Best Uses
- 48V off-grid solar power systems
- Home backup power and battery storage setups
- Cabins, sheds, workshops, farms, and remote buildings
- Hybrid inverter systems with compatible 48V batteries
- Server rack-style battery banks
- Parallel battery expansion for larger capacity
- Replacing older lead-acid battery banks with LiFePO4 storage
Key Benefits
- 48V 100Ah LiFePO4 lithium battery
- 4.8kWh energy storage capacity
- Extremely high number of charge and discharge cycles
- Designed for up to 20-year lifespan with proper maintenance
- Built-in smart battery management system
- Wide operating temperature range
- Low maintenance with little self-discharge
- Stable output voltage for compatible power systems
- Connects in parallel for larger capacity
- Lifetime customer support
BMS Safety Protection
The RS-B4811 includes a sophisticated battery management system designed to monitor and protect the battery during charging, discharging, and daily system operation. This helps support safer long-term performance in properly designed solar and backup power systems.
Battery Specifications
Electrical Details
- Battery Voltage: 48V
- Battery Capacity: 100Ah
- Energy Capacity: 4.8kWh
- Charge Voltage: 52.5V
- Maximum Charge Current: 100A
- Maximum Discharge Current: 100A
Physical Details
- Battery Dimensions: 19"L x 18 3/4"W x 5 1/4"H
- Battery Weight: 92.6 lb
- Convenient removable carry handle
- Low-maintenance lithium design
- Parallel cable support for larger battery banks
- Designed for rack-style battery installations
Included Components
The RS-B4811 includes the core battery and connection accessories needed for compatible communication and parallel battery bank setup.
Battery Server Rack Details
For rack-based battery installations, the compatible battery server rack is built from high-quality cold-rolled steel plate and designed to organize supported battery systems in a cleaner, more serviceable layout.
Rack Dimensions
- Dimensions: 39"L x 32"W x 24"H
- Weight: 159 lb
- Material: High-quality cold-rolled steel plate
- Protection Level: IP20
Packaging
- Carton and wooden pallet packaging
- Designed for server rack battery organization
- Useful for larger 48V battery bank installations
- Confirm rack inclusion before ordering if required for your setup
Compare before choosing
Compare the Rich Solar ALPHA 5 PRO | 51.2V 100Ah LiFePO4 Battery | Premium 48V Server Rack Lithium Battery for Residential, Commercial, RVs, Off-Grid | 7,000 Lifetime Cycles | 10 Year Warranty | UL1973, UL9540A Certified by model rating, dimensions and charging or connection limits. Use each product’s exact specifications for your system.
| Specifications | |
| Selected variant SKU | RS-B4811 |
|---|---|
| Electrical Specifications | |
| Nominal Voltage | 48V |
| Nominal Capacity (at 0.5C, 77°F) | 100Ah |
| Minimum Capacity (at 0.5C, 77°F) | 99.5Ah |
| Expected Cycle Life | >7000 cycles w/1C charge and discharge rate, at 77°F, 80% DoD |
| Operating Specifications | |
| Charge Method | Smart charger, constant current, constant voltage |
| Operating Voltage | 48V |
| Capacity | 100Ah |
| Energy | 4800 Watt Hours |
| Charge Voltage Range | 52.0 – 52.5V |
| Continuous Charge Current | 100A |
| Continuous Discharge Current | 100A |
| Overvoltage Shutdown | 52.5 ± 0.2V |
| Discharge Cut-off Voltage | 42V ± 0.5V |
| Self Discharge (stored at 50% SOC) | <3%/month |
| Waterproof | IP20 |
| Temperature Performance | |
| Charge Temperature | 32°F to 113°F |
| Discharge Temperature | -4°F to 122°F |
| Storage Temperature | -4°F to 122°F |
| BMS High Temperature Cut-off | 149°F |
| BMS Low Temperature Cut-off | 32°F |
| Physical Specifications | |
| Battery Dimensions (L×W×H) | 19 × 17.7 × 5.2 in |
| Weight | 42kg / 92.6 lb |
| Battery Server Rack Specifications | |
| Battery Server Rack Dimensions (L×W×H) | 27.6 × 27.6 × 44 in |
| Weight | 196 lb |
| Thickness | Frame 1.5mm, top/bottom plate 1.2mm, column 2.0mm, mesh door plate 1.2mm, side plate (screw fixed) 1.0mm, L-shaped bracket 2.0mm |
| Material | High-quality cold-rolled steel plate |
| Protection Level | IP20 |
| BMS Operation | |
| Over Charge Protection | |
| Over Charge Detection Voltage | 3.9 ± 0.05V |
| Over Charge Detection Delay Time | 0.96 – 1.4s |
| Over Charge Release Voltage | 3.80 ± 0.05V |
| Maximum Charge Voltage | 3.65 ± 0.05V |
| Over Discharge Protection | |
| Over Discharge Detection Voltage | 2.0V ± 0.05V |
| Over Discharge Detection Delay Time | 115–173ms |
| Over Discharge Release Voltage | 2.3V ± 0.10V |
| Over Current Protection Delay Time | 9 ± 2ms |
| Over Current Release Condition | Cut load |
| DC Output Voltage (No Load) Approx | 14.6V / 13.6V / 13.2V |
| Additional Details | |
| Battery Server Rack Dimensions | 39"L × 32"W × 24"H |
| Weight | 159 lb |
| Material | High-quality cold-rolled steel plate |
| Protection Level | IP20 |
| Packaging | Carton + Wooden Pallet |
Frequently Asked Questions
Clear answers to common questions about this product, setup, compatibility, and use.