BYDBattery-Box Premium HVS 5.1
The BYD Battery-Box Premium HVS 5.1 is a home battery with usable capacity 5.12 kWh, round-trip efficiency 96 % and cell chemistry LFP.1
Key figures
Technical specifications
| General | |
|---|---|
| Cell chemistry | LFP1 |
| Performance | |
| Usable capacity | 5.12 kWh1 |
| Smallest configuration | 5.12 kWh1 |
| Expandable up to | 38.4 kWh1 |
| Efficiency | |
| Round-trip efficiency | 96 %1 |
| Electrical | |
| Backup power | Yes1 |
| Off-grid capable | Yes1 |
| Dimensions & weight | |
| IP rating | IP551 |
| Min. operating temperature | -10 °C1 |
| Width | 585 mm1 |
| Height | 762 mm1 |
| Depth | 298 mm1 |
| Weight | 91 kg1 |
| Warranty & lifespan | |
| Warranty | 10 years1 |
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Frequently asked questions
What is the usable capacity of the BYD Battery-Box Premium HVS 5.1?
The usable capacity of the BYD Battery-Box Premium HVS 5.1 is 5.12 kWh.1
What is the round-trip efficiency of the BYD Battery-Box Premium HVS 5.1?
The round-trip efficiency of the BYD Battery-Box Premium HVS 5.1 is 96 %.1
Which cell chemistry does the BYD Battery-Box Premium HVS 5.1 use?
The cell chemistry of the BYD Battery-Box Premium HVS 5.1 is LFP.1
What is the warranty of the BYD Battery-Box Premium HVS 5.1?
The warranty of the BYD Battery-Box Premium HVS 5.1 is 10 years.1
Sources
- Battery-Box Premium HVS – datasheet, BCU2.0 V1.0 EN (28.03.2025) — BYD Lithium Battery Co., Ltd. · accessed 27 Sept 2026