Pytes V16
A rugged, fully listed 16 kWh battery for outdoor whole-home backup with a 48 V inverter. You pay a premium for the IP66 enclosure and Pytes’ compatibility testing.
Current Connected $3,659$3,659
The Pytes V16 is the better 48V solar battery overall, rated 4.5 to 4.4. The Pytes V16 leads on features and output. The EG4 WallMount Indoor 280Ah wins on value. The EG4 WallMount Indoor 280Ah costs $959 less ($2,700 vs $3,659).
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
Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Pytes V16 for features (inverter communication, self-heating, app vs inverter communication, self-heating; no app) and output (200 A continuous (about 10.2 kW) vs 140 A continuous (about 7.2 kW)).
- Choose the EG4 WallMount Indoor 280Ah for value ($189 per rated kWh vs $229 per rated kWh).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every wall and floor mount 48V solar battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | Pytes V16 | EG4 WallMount Indoor 280Ah |
|---|---|---|
| Overall rating | 4.5/5 | 4.4/5 |
| Value 35% | 82 $229 per rated kWh | 91 $189 per rated kWh |
| Output 15% | 49 200 A continuous (about 10.2 kW) | 29 140 A continuous (about 7.2 kW) |
| Warranty 15% | 100 10-year warranty | 100 10-year warranty |
| Safety listing 15% | 100 UL 1973, UL 9540 listed | 100 UL 1973, UL 9540 listed |
| Cycle life 10% | 100 8,000 cycles, maker rating | 100 8,000 cycles at 80% depth, maker rating |
| Features 10% | 100 inverter communication, self-heating, app | 70 inverter communication, self-heating; no app |
Specifications
| Pytes V16 | EG4 WallMount Indoor 280Ah | |
|---|---|---|
| Capacity | ||
| Case | Wall or floor mount | Wall or floor mount |
| Nominal voltage | 51.2 V | 51.2 V |
| Capacity | 314 Ah | 280 Ah |
| Energy | 16 kWh | 14.3 kWh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 8,000 | 8,000 at 80% depth |
| Power | ||
| Continuous discharge | 200 A | 140 A |
| Peak discharge | 300 A | 200 A |
| Max charge current | 200 A | 140 A |
| Modules in parallel | Up to 16 | Up to 64 |
| Safety and communication | ||
| UL 1973 | Yes | Yes |
| UL 9540A | Yes | Yes |
| UL 9540 | Yes | Yes |
| Communication | CAN, RS485, RS232, dry contact, Wi-Fi | CAN, RS485 |
| Works with inverters | Victron, Sol-Ark, EG4, LuxPower, Growatt, Deye, SMA, Solis, Studer, Voltronic | EG4, Schneider, Sol-Ark, Victron, Growatt, Megarevo, Luxpower, Deye |
| Self-heating | Yes | Yes |
| App | Yes | No |
| Build | ||
| Display | - | Yes |
| Built-in breaker | Yes | Yes |
| Enclosure | IP66 | IP20 |
| Dimensions | 27.1 x 10.2 x 27.6 in | 34.1 x 18.1 x 10.4 in (865 x 460 x 264 mm) |
| Weight | 288 lb | 286.6 lb |
| Warranty | 10 years | 10 years |
| Released | 2025-09 | 2024-04 |