Renogy 48V 50Ah Core Self-Heating
A rugged, heated 2.4 kWh battery for small 48 V off-grid and RV systems that don’t need inverter communication.
Renogy $701.99$701.99
4.0/5
A 5 kWh wall-hung battery for small indoor systems that don’t want a server rack. It is being dropped by retailers, so it suits owners adding to an existing bank more than new builds.
- 5.1 kWhCapacity
- 100 AOutput
- 6,000Cycles
- YesUL 9540A
- 10 yearsWarranty
See it at EG4 Electronics
No store we check sells it online; the maker lists where to buy or who installs it.
Discontinued: no longer sold new; the links below may show remaining or used stock.
Pros
- Hangs on a wall with a built-in 150 A busbar, so no rack or cabinet is needed
- LCD shows charge and alarms at the battery
- Closed-loop communication with most major 48 V inverters
- Ten-year warranty
Cons
- Retailers have stopped carrying it, so expansion modules may be hard to match later
- No heater, so it must stay above freezing to charge
- Indoor-only enclosure
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its case. How we rank explains each one.
Specifications
| Model number | WM-48-100-IN |
|---|---|
| Capacity | |
| Case | Wall or floor mount |
| Nominal voltage | 51.2 V |
| Capacity | 100 Ah |
| Energy | 5.1 kWh |
| Chemistry | LiFePO4 |
| Cycle life | 6,000 at 80% depth |
| Power | |
| Continuous discharge | 100 A |
| Max charge current | 100 A |
| Modules in parallel | Up to 64 |
| Safety and communication | |
| UL 1973 | Yes |
| UL 9540A | Yes |
| UL 9540 | No |
| Communication | CAN, RS485 |
| Works with inverters | EG4, Schneider, Sol-Ark, Victron, Growatt, Megarevo, Luxpower, Deye |
| Self-heating | No |
| App | No |
| Build | |
| Display | Yes |
| Built-in breaker | Yes |
| Enclosure | IP20 |
| Dimensions | 23.2 x 17.8 x 7.6 in (590 x 453 x 193 mm) |
| Weight | 108 lb |
| Warranty | 10 years |
| Released | 2025-04 |
Alternatives in this case
Victron Lithium NG 51.2V 100Ah
Only for owners of an all-Victron system who want everything managed through VictronConnect and VRM. Anyone else gets more storage for the money from a server-rack battery.
Current Connected $3,026$3,026
Fortress Power eFlex 5.4 Discontinued
Only worth buying to add matching modules to an existing eFlex bank. New systems should use the eFlex MAX, which costs far less.
Amazon $3,750$3,750
Compare
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