BYD Battery-Box Premium HVS 12.8 vs Sungrow SBR128
Usable capacity: BYD Battery-Box Premium HVS 12.8 12.8 kWh, Sungrow SBR128 12.8 kWh. The Sungrow SBR128 is better on 2 of 4 comparable points.
Who wins where
- BYD Battery-Box Premium HVS 12.8
- Sungrow SBR128
Biggest differences
| Fact | Battery-Box Premium HVS 12.8 | SBR128 |
|---|---|---|
| Min. operating temperature | -10 °C | -20 °C |
| Weight | 205 kg | 147 kg |
Score per area = position (0–100) relative to all 130 models in this category; higher is better.
| Technical specifications | BYDBattery-Box Premium HVS 12.8 | SungrowSBR128 |
|---|---|---|
| General | ||
| Cell chemistry | LFP 1 | LFP 2 |
| Performance | ||
| Usable capacity | 12.8 kWh 1 | 12.8 kWh 2 |
| Nominal capacity | – | 12.8 kWh 3 |
| Expandable up to | 38.4 kWh 1 | – |
| Efficiency | ||
| Round-trip efficiency | 96 % 1 | – |
| Depth of discharge | – | 100 % 2 |
| Electrical | ||
| Backup power | Yes 1 | – |
| Off-grid capable | Yes 1 | – |
| Dimensions & weight | ||
| IP rating | IP55 1 | IP55 2 |
| Min. operating temperature | -10 °C 1 | -20 °C ✓ 2 |
| Width | 585 mm 1 | 625 mm 2 |
| Height | 1,461 mm 1 | 675 mm 2 |
| Depth | 298 mm 1 | 330 mm 2 |
| Weight | 205 kg 1 | 147 kg ✓ 2 |
| Warranty & lifespan | ||
| Warranty | 10 years 1 | 10 years 2 |
Sources
- Battery-Box Premium HVS – datasheet, BCU2.0 V1.0 EN (28.03.2025) — BYD Lithium Battery Co., Ltd. · accessed 27 Sept 2026
- Hochspannungs-LFP-Batterie SBR096/128/160/192/224/256, 14 — Sungrow Power Supply Co., Ltd. · accessed 29 Sept 2026
- CEC approved solar batteries (Australia) — Clean Energy Regulator (Australian Government), CC BY 4.0 · accessed 29 Sept 2026