Ruixu Lithi2-16
A heated, weather-resistant 16 kWh battery with full UL listings, at a low price per kWh. A good fit for a whole-home backup system with a 48 V inverter.
Amazon $3,099 Ruixu $3,059$3,059
4.5/5
The outdoor pick in EG4’s wall lineup, for owners who want large heated 16 kWh blocks outside the house. It pairs best with EG4 inverters but talks to most major brands.
- 16 kWhCapacity
- 200 AOutput
- 10,000Cycles
- YesUL 9540A
- 10 yearsWarranty
Check price at Signature Solar$3,835Check price at Current Connected$3,835
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Older model: this replaces the EG4 WallMount All-Weather 280Ah (rated 4.3). See every EG4 WallMount generation.
Pros
- IP67 case and heater suit outdoor installs in cold or wet climates
- 16 kWh per unit; two run a 12 to 18 kW inverter at full output
- App over Wi-Fi or Bluetooth shows each battery without walking out to it
- Rated for 10,000 cycles, more than most 48 V batteries
Cons
- About 310 lb per unit, so mounting needs a crew
- No screen on the battery itself
- Banks top out at 32 units
The EG4 WallMount 314Ah family
Every EG4 WallMount 314Ah model we rank, smallest first. Ratings compare each against its own case.
| Model | Capacity | Rating | Price |
|---|---|---|---|
| EG4 WallMount Indoor 314Ah | 16 kWh | 4.5/5 | $3,739.99 |
| EG4 WallMount All-Weather 314Ah (this one) | 16 kWh | 4.5/5 | $3,835 |
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 | WM48314AWXX |
|---|---|
| Capacity | |
| Case | Wall or floor mount |
| Nominal voltage | 51.2 V |
| Capacity | 314 Ah |
| Energy | 16 kWh |
| Usable energy | 12.9 kWh |
| Chemistry | LiFePO4 |
| Cycle life | 10,000 at 80% depth |
| Power | |
| Continuous discharge | 200 A |
| Max charge current | 157 A |
| Modules in parallel | Up to 32 |
| Safety and communication | |
| UL 1973 | Yes |
| UL 9540A | Yes |
| UL 9540 | Yes |
| Communication | CAN, RS485 |
| Works with inverters | EG4, Growatt, Deye, Megarevo, Luxpower, Victron, Solis, SMA, Schneider, Voltronic |
| Self-heating | Yes |
| App | Yes |
| Build | |
| Display | No |
| Built-in breaker | Yes |
| Enclosure | IP67 |
| Dimensions | 34.6 x 21.7 x 9.3 in (880 x 550 x 235 mm) |
| Weight | 309 lb |
| Warranty | 10 years |
| Released | 2026-01 |
Alternatives in this case
EG4 WallMount Indoor 314Ah
EG4’s current indoor wall battery, for whole-home systems that want large heated 16 kWh blocks. It costs about $100 less than the All-Weather version if the battery can live indoors.
Signature Solar $3,739.99 Current Connected $3,739.99$3,739.99
EG4 WallMount Indoor 280Ah
A cheap per-kWh indoor wall battery for EG4 inverter owners who want 14 kWh blocks with a heater. Buy while stock lasts; the 314Ah model replaces it.
Signature Solar $2,700$2,700
Compare
Compare the EG4 WallMount All-Weather 314Ah with any other 48V solar battery →
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