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 $3,659The Pytes V16 and the EG4 WallMount Indoor 314Ah are evenly matched, rated 4.5 and 4.5. The Pytes V16 costs $80.99 less ($3,659 vs $3,739.99).
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 $3,739.99Prices 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.
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 314Ah |
|---|---|---|
| Overall rating | 4.5/5 | 4.5/5 |
| Value 35% | 82 $229 per rated kWh | 81 $234 per rated kWh |
| Output 15% | 49 200 A continuous (about 10.2 kW) | 49 200 A continuous (about 10.2 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 10,000 cycles at 80% depth, maker rating |
| Features 10% | 100 inverter communication, self-heating, app | 100 inverter communication, self-heating, app |
Specifications
| Pytes V16 | EG4 WallMount Indoor 314Ah | |
|---|---|---|
| Capacity | ||
| Case | Wall or floor mount | Wall or floor mount |
| Nominal voltage | 51.2 V | 51.2 V |
| Capacity | 314 Ah | 314 Ah |
| Energy | 16 kWh | 16 kWh |
| Usable energy | - | 12.9 kWh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 8,000 | 10,000 at 80% depth |
| Power | ||
| Continuous discharge | 200 A | 200 A |
| Peak discharge | 300 A | - |
| Max charge current | 200 A | 157 A |
| Modules in parallel | Up to 16 | Up to 32 |
| 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, Growatt, Deye, Megarevo, Luxpower, Victron, Solis, SMA, Schneider, Voltronic |
| Self-heating | Yes | Yes |
| App | Yes | Yes |
| Build | ||
| Display | - | No |
| Built-in breaker | Yes | Yes |
| Enclosure | IP66 | IP20 |
| Dimensions | 27.1 x 10.2 x 27.6 in | 34.1 x 18.1 x 9.6 in (865 x 460 x 245 mm) |
| Weight | 288 lb | 293.2 lb |
| Warranty | 10 years | 10 years |
| Released | 2025-09 | 2025-11 |
