Rich Solar
Rich Solar Alpha 5 48V 100Ah (4.8kWh) Server Rack LiFePO4 Battery, 7000+ Cycles (RS-B48100SR)
Rack-Mounted 48V Storage That Just Keeps Going
The Rich Solar Alpha 5 is a 48V 100Ah (4.8 kWh) server rack lithium iron phosphate battery built for solar and backup energy storage. LiFePO4 chemistry brings excellent thermal and chemical stability, a smart built-in BMS protects every cell, and a rating of more than 7,000 cycles at 80% depth of discharge means it's built to last for years of daily use.
Picture a home solar system in a garage or utility room: panels charge the rack by day, and at night the Alpha 5 quietly powers the house. Need more storage later? Slide in another module and connect it with the included parallel cables. Its 10-year warranty and lifetime customer support mean you're covered for the long haul.
Key Features
- 4.8 kWh (48V 100Ah) in a server rack form factor
- 7,000+ cycles (1C charge/discharge, 77°F, 80% DOD)
- 100A continuous discharge
- Smart battery management system: overcharge, over-discharge, over-current, short-circuit, reverse polarity, and high/low temperature protection
- Individually fused cells: if a cell ever fails, it's isolated so the battery keeps working safely
- Safe LiFePO4 chemistry: designed so physical damage or excessive heat will not cause a fire
- Low self-discharge (under 3% per month) and stable output voltage
- IP65 enclosure with a removable carry handle
- Easy expansion with included RS485 and parallel cables
- UL listed, FCC, IEEE, and cCSAus certified
- 10-year warranty and lifetime customer support
Specifications
| Specification | Value |
|---|---|
| Series / Model | Alpha 5 (RS-B48100SR) |
| Nominal Voltage | 48 V |
| Nominal Capacity | 100 Ah |
| Energy | 4,800 Wh |
| Cell Chemistry | LiFePO4 |
| Discharge Current | 100 A |
| Cycle Life | >7,000 cycles (1C, 77°F, 80% DOD) |
| Charge Method | Smart charger, constant current / constant voltage |
| Charge Voltage (per cell) | 3.65 ±0.05 V |
| Over Voltage Shutdown | 52.5 ±0.2 V |
| Discharge Cut-off Voltage | 42 ±0.5 V |
| Self-Discharge Rate | <3% per month |
| Charge Temperature | 32–113°F |
| Discharge Temperature | -4 to 122°F |
| Storage Temperature | -4 to 122°F |
| BMS Temperature Cut-off | 32°F (low) / 149°F (high) |
| Enclosure Rating | IP65 |
| Battery Group Size | 15 |
| Dimensions (L × W × H) | 19 × 17.7 × 5.2 in |
| Weight | 92.6 lb |
| Standards | UL Listed, FCC, IEEE, cCSAus |
| Warranty | 10 years |
BMS Protection Details
| Protection | Setting |
|---|---|
| Over Charge Detection Voltage | 3.9 ±0.05 V (delay 0.96–1.4 sec) |
| Over Charge Release Voltage | 3.80 ±0.05 V |
| Maximum Charge Voltage | 3.65 ±0.05 V |
| Over Discharge Detection Voltage | 2 ±0.05 V (delay 115–173 ms) |
| Over Discharge Release Voltage | 2.3 ±0.1 V |
| Over Current Detection Delay | 9 ±2 ms (release: cut load) |
| Reverse Polarity Protection | Yes |
| Short-Circuit Protection | Yes |
What's in the Box
- Rich Solar Alpha 5 4.8 kWh (48V 100Ah) LiFePO4 battery
- 1 ft RS485 communication cable
- Set of parallel cables
Where It Fits
Home solar and battery backup systems, off-grid cabins and homes, and any 48V energy storage setup that needs expandable, rack-mounted capacity.