---
title: "Deye BOS-G20 vs BYD Battery-Box Premium HVM 19.3 - Battery Comparison | ComparePV"
description: "Compare Deye BOS-G20 vs BYD Battery-Box Premium HVM 19.3 side by side: shop prices, usable energy, round-trip efficiency, power, cycle life and the full specification."
source: "https://comparepv.com/compare-batteries/bos-g20/byd-battery-box-premium-hvm-19-3"
updated: 2026-01-11
---

# Deye BOS-G20 vs BYD Battery-Box Premium HVM 19.3

BOS-G20 leads on the differences that matter

The largest is usable energy: 0.89 kWh apart. 4 of 12 comparable parameters are identical, with 21 more left out because at least one datasheet does not publish them.


## The two batteries


| Attribute | A | B |
| --- | --- | --- |
| Battery | [Deye BOS-G20](https://comparepv.com/battery/bos-g20) | [BYD Battery-Box Premium HVM 19.3](https://comparepv.com/battery/byd-battery-box-premium-hvm-19-3) |
| Manufacturer | Deye | BYD |
| Usable energy | 18.43 kWh | 19.32 kWh |
| Cells and voltage | LFP HV | LFP HV |


## Price offers


| Shop | Country | BOS-G20 | Battery-Box Premium HVM 19.3 |
| --- | --- | --- | --- |
| www.solar-outlet.nl | Netherlands |  | 7 989.95 € |

[See 44 Deye offers](https://comparepv.com/offers?manufacturer=deye&product_type=battery)

[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 | BOS-G20 | Battery-Box Premium HVM 19.3 | Difference |
| --- | --- | --- | --- |
| Usable energy | 18.43 kWh | 19.32 kWh | 0.89 kWh apart |
| Max system capacity | 61.4 kWh | 58.0 kWh | +3.5 kWh for BOS-G20 |
| Nominal voltage | 205 V | 358 V | 154 V apart |
| Min operating temperature | -20 °C | -10 °C | -10 °C for BOS-G20 |
| Max operating temperature | 55 °C | 50 °C | +5 °C for BOS-G20 |
| Ingress protection | IP20 | IP55 | IP20 vs IP55 |
| Operating voltage | 166.4-233.6 V | 280-413 V | 166.4-233.6 V vs 280-413 V |
| Dimensions | 1629x530x602 mm | 1927x585x298 mm | 1629x530x602 mm vs 1927x585x298 mm |


## Every compared parameter


| Parameter | BOS-G20 | Battery-Box Premium HVM 19.3 |
| --- | --- | --- |
| Usable energy | 18.43 kWh | 19.32 kWh |
| Nominal energy | 20.48 kWh | - |
| Depth of discharge | 90 % | - |
| Max system capacity | 61.4 kWh | 58.0 kWh |
| Modules per stack | 3-12 | - |
| Continuous discharge power | - | - |
| Continuous charge power | - | - |
| Peak discharge power | - | - |
| Power per kWh | - | - |
| Round-trip efficiency | - | 96.0 % |
| Cycle life | 6000 cycles | - |
| Cycle test depth | 90 % | - |
| Capacity at end of life | 70 % | - |
| Self-discharge | - | - |
| Voltage class | High voltage | High voltage |
| Nominal voltage | 205 V | 358 V |
| Operating voltage | 166.4-233.6 V | 280-413 V |
| Cell chemistry | LFP | LFP |
| Active cell balancing | - | - |
| Thermal management | - | - |
| Inverter | None (battery only) | None (battery only) |
| Inverter power | - | - |
| Grid connection | - | - |
| Backup power | - | - |
| Weight | 420.0 kg | - |
| Weight per kWh | 22.8 kg/kWh | - |
| Dimensions | 1629x530x602 mm | 1927x585x298 mm |
| Ingress protection | IP20 | IP55 |
| Outdoor-rated | - | - |
| Min operating temperature | -20 °C | -10 °C |
| Max operating temperature | 55 °C | 50 °C |
| Warranty | 10 yrs | 10 yrs |
| Warranted throughput | - | - |


## Related comparisons

- [Deye BOS-G20 vs Solplanet Ai-HB 200A](https://comparepv.com/compare-batteries/bos-g20/solplanet-ai-hb-200a) - 10 differences, the largest is max system capacity
- [Deye BOS-G20 vs Deye GB-L20](https://comparepv.com/compare-batteries/bos-g20/gb-l20) - 9 differences, the largest is max system capacity
- [Deye BOS-G20 vs Deye GB-SL-EU (5 modules in series)](https://comparepv.com/compare-batteries/bos-g20/gb-sl-eu-5-modules-in-series) - 10 differences, the largest is max system capacity
- [BYD Battery-Box Premium HVM 19.3 vs FoxESS HS20](https://comparepv.com/compare-batteries/byd-battery-box-premium-hvm-19-3/foxess-hs20) - 6 differences, the largest is usable energy
- [BYD Battery-Box Premium HVM 19.3 vs FoxESS ECS4300H-H5](https://comparepv.com/compare-batteries/byd-battery-box-premium-hvm-19-3/fox-ess-ecs4300h-h5) - 9 differences, the largest is usable energy


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Source: https://comparepv.com/compare-batteries/bos-g20/byd-battery-box-premium-hvm-19-3

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