Pytes V10α
A UL-listed 10 kWh battery for outdoor wall mounting, for homeowners without indoor space. Add units in parallel for larger inverters.
Current Connected $2,000$2,000
The Pytes V10α is the better 48V solar battery overall, rated 4.6 to 3.6. The Pytes V10α leads on value and features. The Briggs & Stratton SimpliPHI 6.6 wins on output. The Pytes V10α costs $1,362.99 less ($2,000 vs $3,362.99).
Briggs & Stratton SimpliPHI 6.6
For homeowners and installers who want a neat, outdoor-rated stack that goes up in minutes with no battery cabling. It costs more per kWh than server-rack batteries, so it suits buyers who value the clean install and the Briggs warranty.
Off Grid Stores $3,362.99$3,362.99
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 V10α for value ($200 per rated kWh vs $505 per rated kWh) and features (inverter communication, self-heating, app vs inverter communication; no self-heating).
- Choose the Briggs & Stratton SimpliPHI 6.6 for output (130 A continuous (about 6.7 kW) vs 120 A continuous (about 6.1 kW)).
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 V10α | Briggs & Stratton SimpliPHI 6.6 |
|---|---|---|
| Overall rating | 4.6/5 | 3.6/5 |
| Value 35% | 89 $200 per rated kWh | 21 $505 per rated kWh |
| Output 15% | 45 120 A continuous (about 6.1 kW) | 100 130 A continuous (about 6.7 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 | 30 4,500 cycles at 100% depth, maker rating |
| Features 10% | 100 inverter communication, self-heating, app | 40 inverter communication; no self-heating |
Specifications
| Pytes V10α | Briggs & Stratton SimpliPHI 6.6 | |
|---|---|---|
| Capacity | ||
| Case | Wall or floor mount | Wall or floor mount |
| Nominal voltage | 51.2 V | 51.2 V |
| Capacity | 200 Ah | 130 Ah |
| Energy | 10 kWh | 6.7 kWh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 8,000 | 4,500 at 100% depth |
| Power | ||
| Continuous discharge | 120 A | 130 A |
| Peak discharge | 200 A | 240 A |
| Max charge current | 120 A | 100 A |
| Modules in parallel | Up to 16 | Up to 18 |
| 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, Sol-Ark, Growatt, Megarevo, Solis |
| Self-heating | Yes | No |
| App | Yes | No |
| Build | ||
| Built-in breaker | Yes | - |
| Enclosure | IP66 | IP20 (IP65 when stacked) |
| Dimensions | 27.1 x 10.2 x 20.5 in | 726 x 440 x 170 mm (28.6 x 17.3 x 6.7 in), 480 mm with tabs |
| Weight | 217 lb | 125 lb |
| Warranty | 10 years | 10 years |
| Released | 2025-08 | 2024-04 |