Epoch 48V 100Ah Self-Heating Server Rack LiFePO4 Battery
- 48 V system
- 4,000-5,999 Wh
- Self-heating
- 10-year warranty
A 5.12 kWh, 51.2 V self-heating LiFePO4 battery in a 3U rack chassis, with CAN and RS485 inverter communication and up to 32 in parallel, for indoor home and off-grid storage.
$1,499
We may earn a commission if you buy through this link. It never affects our scores. How this works
Usability
5.4 out of 10Strengths
- Charges in an unheated space with its own heater
- Talks to many inverter brands over CAN or RS485
- Grows into a large parallel bank
- Standard rack format
- Usable energy published alongside nominal
Drawbacks
- No Bluetooth or app on the battery
- Indoor-only IP20 case
- Parallel only: never in series
- Recommended currents half the maximum
- Cycle rating at partial depth to a low end point
- Warranty remedy drops to a discount after the early years
Specs
- Capacity4,000-5,999 Wh
- AC OutputNot applicable
- System Voltage48 V
- Panel PowerNot applicable
- Charge CurrentNot applicable
- Safety ListingRecognized component only
- Cell TypeNot applicable
- Low-Temp ChargingSelf-heating
- Warranty10 Years
- MonitoringWired display or port only
- Weight101.0 lb
At a glance
- 17.4 x 18.1 x 5.2 in
- 19-inch rack ears
- Front-panel status LEDs
- Plug-in power connectors
- Epoch is the brand of Epoch Batteries LLC of Marietta, Georgia, a veteran-owned company that its store says was founded in 2019.
- The EPOCH BATTERIES trademark for batteries is owned by EDG Sales International LLC of Stockbridge, Georgia, named as manufacturer on an Epoch UN38.3 test summary.
It sells with a cart at epochbatteries.com and through authorized dealers such as Current Connected, Blue Marine and Citimarine, after announcing a dealer-only switch for July 2025.
The Epoch SR48100H is a 51.2 V, 100 Ah LiFePO4 battery storing 5,120 Wh (5.12 kWh) nominal, 4.92 kWh usable at 0.2C, in a 3U, 19-inch rack chassis with 16 series cells.
Epoch rates it at 100 A maximum continuous discharge (50 A or less recommended), 119 A for up to 5 minutes and 200 A for up to 15 seconds, and 70 A maximum continuous charge (50 A or less recommended). It absorbs at 56.0 V and floats at 54.6 V, with a 48.0 V inverter cut-off.
A heater powered by incoming charge current starts between −25 and 5 °C once at least 8 A flows and stops at 12 °C; the cells charge from −10 to 50 °C and discharge from −20 to 50 °C with communication.
CAN and RS485 ports set the protocol for many inverter brands by DIP switch; the inverter cable (Version I, II or III) is sold separately, and there is no Bluetooth. Up to 32 run in parallel with automatic addressing (3,200 Ah, 163.84 kWh); series connection is not supported.
The metal IP20 chassis measures 17.4 x 18.1 x 5.2 in (442 x 460 x 133.5 mm), 19.0 in wide across the rack ears, and weighs 101 lb (46 kg). It has plug-in power connectors, a front grounding point and front-panel LEDs; stack (up to four), wall and floor kits are sold separately.
Epoch rates it for 6,000 or more cycles at 0.2C and 90 percent depth of discharge to 60 percent of initial capacity and gives it an 11-year limited warranty with registration within 90 days.
