Pytes V5
#6 in Server rackFull review
A fully UL-listed, heated 5 kWh rack module for permitted home installs. It’s worth the premium when your inspector wants UL 9540.
Signature Solar $1,450$1,450
The Pytes V5 is the better 48V solar battery overall, rated 4.4 to 4.1. The Pytes V5 leads on output. The Pytes V5α Plus wins on features.
Pytes V5α Plus
#8 in Server rackFull review
Pytes’ second-generation V5, adding a breaker, Wi-Fi and fire suppression. Worth seeking out for a code-compliant rack system once US stock appears.
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 V5 for output (100 A continuous (about 5.1 kW) vs 75 A continuous (about 3.8 kW)).
- Choose the Pytes V5α Plus for features (inverter communication, self-heating, app vs inverter communication, self-heating; no app).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every server rack 48V solar battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | Pytes V5 | Pytes V5α Plus |
|---|---|---|
| Overall rating | 4.4/5 | 4.1/5 |
| Value 35% | 70 $283 per rated kWh | 50 no current price (neutral score used) |
| Output 15% | 100 100 A continuous (about 5.1 kW) | 64 75 A continuous (about 3.8 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% | 60 6,000 cycles at 90% depth, maker rating | 60 6,000 cycles, maker rating |
| Features 10% | 70 inverter communication, self-heating; no app | 100 inverter communication, self-heating, app |
Specifications
| Pytes V5 | Pytes V5α Plus | |
|---|---|---|
| Capacity | ||
| Case | Server rack (19-inch) | Server rack (19-inch) |
| Nominal voltage | 51.2 V | 51.2 V |
| Capacity | 100 Ah | 100 Ah |
| Energy | 5.1 kWh | 5.1 kWh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 at 90% depth | 6,000 |
| Power | ||
| Continuous discharge | 100 A | 75 A |
| Peak discharge | 180 A | - |
| Max charge current | 100 A | - |
| Modules in parallel | Up to 96 | Up to 96 |
| Safety and communication | ||
| UL 1973 | Yes | Yes |
| UL 9540A | Yes | Yes |
| UL 9540 | Yes | Yes |
| Communication | CAN, RS485 | CAN, RS485, RS232, dry contact, Wi-Fi |
| Works with inverters | Victron, Sol-Ark, EG4, LuxPower, Growatt, Deye, SMA, Solis, Studer, Voltronic | Victron, Sol-Ark, EG4, LuxPower, Growatt, Deye, SMA, Solis, Studer, Voltronic |
| Self-heating | Yes | Yes |
| App | No | Yes |
| Build | ||
| Built-in breaker | - | Yes |
| Enclosure | - | IP20 |
| Dimensions | 17.4 x 20.9 x 5.5 in (3.2U) | 19.1 x 22.8 x 5.5 in |
| Weight | 97 lb | 100 lb |
| Warranty | 10 years | 10 years |
| Released | 2022-09 | 2025-10 |