---
title: "BYD Battery-Box Premium HVM 8.3 vs BYD Battery-Box Premium HVS 7.7 - Battery Comparison | ComparePV"
description: "Compare BYD Battery-Box Premium HVM 8.3 vs BYD Battery-Box Premium HVS 7.7 side by side: shop prices, usable energy, round-trip efficiency, power, cycle life and the full specification."
source: "https://comparepv.com/compare-batteries/byd-battery-box-premium-hvm-8-3/byd-battery-box-premium-hvs-7-7"
updated: 2026-01-11
---

# BYD Battery-Box Premium HVM 8.3 vs BYD Battery-Box Premium HVS 7.7

HVM 8.3 leads on the differences that matter

The largest is usable energy: 0.60 kWh apart. 9 of 13 comparable parameters are identical, with 20 more left out because at least one datasheet does not publish them.


## The two batteries


| Attribute | A | B |
| --- | --- | --- |
| Battery | [BYD Battery-Box Premium HVM 8.3](https://comparepv.com/battery/byd-battery-box-premium-hvm-8-3) | [BYD Battery-Box Premium HVS 7.7](https://comparepv.com/battery/byd-battery-box-premium-hvs-7-7) |
| Manufacturer | BYD | BYD |
| Usable energy | 8.28 kWh | 7.68 kWh |
| Cells and voltage | LFP HV | LFP HV |


## Price offers


| Shop | Country | HVM 8.3 | HVS 7.7 |
| --- | --- | --- | --- |
| Solaris Energy | Poland | 14 800 zł | 13 720 zł |
| www.solar-outlet.nl | Netherlands | 3 549.95 € | 3 298.95 € |
| Consor Energia | Poland |  | 31 000 zł |

[See 119 BYD offers](https://comparepv.com/offers?manufacturer=byd&product_type=battery)


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | HVM 8.3 | HVS 7.7 | Difference |
| --- | --- | --- | --- |
| Usable energy | 8.28 kWh | 7.68 kWh | 0.60 kWh apart |
| Max system capacity | 24.8 kWh | 12.8 kWh | +12.0 kWh for HVM 8.3 |
| Nominal voltage | 154 V | 307 V | 154 V apart |
| Operating voltage | 120-177 V | 240-360 V | 120-177 V vs 240-360 V |


## Every compared parameter


| Parameter | HVM 8.3 | HVS 7.7 |
| --- | --- | --- |
| Usable energy | 8.28 kWh | 7.68 kWh |
| Nominal energy | - | 7.68 kWh |
| Depth of discharge | - | 100 % |
| Max system capacity | 24.8 kWh | 12.8 kWh |
| Modules per stack | - | 2-5 |
| Continuous discharge power | - | 7.68 kW |
| Continuous charge power | - | 7.68 kW |
| Peak discharge power | - | 15.36 kW |
| Power per kWh | - | 1.00 kW/kWh |
| Round-trip efficiency | 96.0 % | 96.0 % |
| Cycle life | - | - |
| Cycle test depth | - | 100 % |
| Capacity at end of life | - | - |
| Self-discharge | - | - |
| Voltage class | High voltage | High voltage |
| Nominal voltage | 154 V | 307 V |
| Operating voltage | 120-177 V | 240-360 V |
| Cell chemistry | LFP | LFP |
| Active cell balancing | - | - |
| Thermal management | - | - |
| Inverter | None (battery only) | None (battery only) |
| Inverter power | - | - |
| Grid connection | - | - |
| Backup power | - | - |
| Weight | - | 129.0 kg |
| Weight per kWh | - | 16.8 kg/kWh |
| Dimensions | 995x585x298 mm | 995x585x298 mm |
| Ingress protection | IP55 | IP55 |
| Outdoor-rated | - | Yes |
| Min operating temperature | -10 °C | -10 °C |
| Max operating temperature | 50 °C | 50 °C |
| Warranty | 10 yrs | 10 yrs |
| Warranted throughput | - | - |


## Related comparisons

- [BYD Battery-Box Premium HVM 8.3 vs Sigenergy SigenStor BAT 8.0](https://comparepv.com/compare-batteries/byd-battery-box-premium-hvm-8-3/sigenergy-sigenstor-bat-8-0) - 8 differences, the largest is usable energy
- [BYD Battery-Box Premium HVM 8.3 vs FoxESS ECS2900-H3](https://comparepv.com/compare-batteries/byd-battery-box-premium-hvm-8-3/fox-ess-ecs2900-h3) - 9 differences, the largest is usable energy
- [BYD Battery-Box Premium HVM 8.3 vs Pylontech Force H1 (4 modules)](https://comparepv.com/compare-batteries/byd-battery-box-premium-hvm-8-3/pylontech-force-h1-4-modules) - 4 differences, the largest is usable energy
- [BYD Battery-Box Premium HVS 7.7 vs FoxESS ECS4300H-H2](https://comparepv.com/compare-batteries/byd-battery-box-premium-hvs-7-7/fox-ess-ecs4300h-h2) - 15 differences, the largest is usable energy
- [BYD Battery-Box Premium HVS 7.7 vs Deye GB-L8](https://comparepv.com/compare-batteries/byd-battery-box-premium-hvs-7-7/gb-l8) - 17 differences, the largest is usable energy


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Source: https://comparepv.com/compare-batteries/byd-battery-box-premium-hvm-8-3/byd-battery-box-premium-hvs-7-7

Not in this file, on the page: a written summary generated on request.