BYD Battery-Box Premium HVS 10.2 vs Sessy 2.0 10 kWh
Usable capacity: BYD Battery-Box Premium HVS 10.2 10.24 kWh, Sessy 2.0 10 kWh 10.4 kWh. Both models win equally often (2 of 5 points).
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Both models in detail
Who wins where
- BYD Battery-Box Premium HVS 10.2
- Sessy 2.0 10 kWh
Biggest differences
| Fact | Battery-Box Premium HVS 10.2 | 2.0 10 kWh |
|---|---|---|
| Min. operating temperature | -10 °C | 0 °C |
| Weight | 167 kg | 96 kg |
| Expandable up to | 38.4 kWh | 31.2 kWh |
Score per area = position (0–100) relative to all 140 models in this category; higher is better.
| Technical specifications | BYDBattery-Box Premium HVS 10.2 | Sessy2.0 10 kWh |
|---|---|---|
| General | ||
| Cell chemistry | LFP1 | LFP2 |
| Smart charging on dynamic prices | – | Yes2 |
| Wi-Fi / app | – | Yes2 |
| Performance | ||
| Usable capacity | 10.24 kWh1 | 10.4 kWh✓2 |
| Nominal capacity | – | 11 kWh2 |
| Expandable up to | 38.4 kWh✓1 | 31.2 kWh2 |
| Charge power (continuous) | – | 2.2 kW2 |
| Discharge power (continuous) | – | 1.7 kW2 |
| Efficiency | ||
| Round-trip efficiency | 96 %1 | – |
| Electrical | ||
| Phases | – | 12 |
| Backup power | Yes1 | – |
| Off-grid capable | Yes1 | – |
| Dimensions & weight | ||
| IP rating | IP551 | IP202 |
| Min. operating temperature | -10 °C✓1 | 0 °C2 |
| Width | 585 mm1 | 410 mm2 |
| Height | 1,228 mm1 | 780 mm2 |
| Depth | 298 mm1 | 270 mm2 |
| Weight | 167 kg1 | 96 kg✓2 |
| Warranty & lifespan | ||
| Warranted cycles | – | 6,0002 |
| Warranty | 10 years1 | 10 years2 |
Frequently asked questions
Which is better: the BYD Battery-Box Premium HVS 10.2 or the Sessy 2.0 10 kWh?
Usable capacity: BYD Battery-Box Premium HVS 10.2 10.24 kWh, Sessy 2.0 10 kWh 10.4 kWh. Both models win equally often (2 of 5 points).
What is the usable capacity of the BYD Battery-Box Premium HVS 10.2 and the Sessy 2.0 10 kWh?
BYD Battery-Box Premium HVS 10.2: 10.24 kWh. Sessy 2.0 10 kWh: 10.4 kWh.
Which is better on min. operating temperature: the BYD Battery-Box Premium HVS 10.2 or the Sessy 2.0 10 kWh?
BYD Battery-Box Premium HVS 10.2: -10 °C. Sessy 2.0 10 kWh: 0 °C.
Which is better on weight: the BYD Battery-Box Premium HVS 10.2 or the Sessy 2.0 10 kWh?
Sessy 2.0 10 kWh: 96 kg. BYD Battery-Box Premium HVS 10.2: 167 kg.
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How we collect and check this data →
Sources
- Battery-Box Premium HVS – datasheet, BCU2.0 V1.0 EN (28.03.2025) — BYD Lithium Battery Co., Ltd. · accessed 27 Sept 2026
- Sessy 2.0 10 kWh – specificaties, 09/2025 (tekst herkend met OCR) — Sessy B.V. · accessed 27 Sept 2026