---
title: "Deye BOS-A (23 modules in series) vs Deye BOS-B (15 modules in series; system config shown) - Battery Comparison | ComparePV"
description: "Compare Deye BOS-A (23 modules in series) vs Deye BOS-B (15 modules in series; system config shown) side by side: usable energy, round-trip efficiency, power, cycle life and the full specification."
source: "https://comparepv.com/compare-batteries/bos-a-23-modules-in-series/deye-bos-b-15-modules-in-series-system-config-shown"
updated: 2026-01-10
---

# Deye BOS-A (23 modules in series) vs Deye BOS-B (15 modules in series; system config shown)

B (15 modules in series; system config shown) leads on the differences that matter

The largest is usable energy: 34.07 kWh apart. 11 of 19 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.


## The two batteries


| Attribute | A | B |
| --- | --- | --- |
| Battery | [Deye BOS-A (23 modules in series)](https://comparepv.com/battery/bos-a-23-modules-in-series) | [Deye BOS-B (15 modules in series; system config shown)](https://comparepv.com/battery/deye-bos-b-15-modules-in-series-system-config-shown) |
| Manufacturer | Deye | Deye |
| Usable energy | 158.98 kWh | 193.05 kWh |
| Cells and voltage | LFP HV | LFP HV |

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


## Where they differ

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


| Parameter | A (23 modules in series) | B (15 modules in series; system config shown) | Difference |
| --- | --- | --- | --- |
| Usable energy | 158.98 kWh | 193.05 kWh | 34.07 kWh apart |
| Max system capacity | 176.6 kWh | 214.5 kWh | +37.9 kWh for B (15 modules in series; system config shown) |
| Nominal energy | 176.64 kWh | 214.50 kWh | 37.86 kWh apart |
| Nominal voltage | 883 V | 720 V | 163 V apart |
| Weight | 1710.0 kg | 1850.0 kg | -140.0 kg for A (23 modules in series) |
| Weight per kWh | 10.8 kg/kWh | 9.6 kg/kWh | -1.2 kg/kWh for B (15 modules in series; system config shown) |
| Modules per stack | 7-23 | 5-15 | 7-23 vs 5-15 |
| Dimensions | 1921x1258x605 mm | 1136x2150x800 mm | 1921x1258x605 mm vs 1136x2150x800 mm |


## Every compared parameter


| Parameter | A (23 modules in series) | B (15 modules in series; system config shown) |
| --- | --- | --- |
| Usable energy | 158.98 kWh | 193.05 kWh |
| Nominal energy | 176.64 kWh | 214.50 kWh |
| Depth of discharge | 90 % | 90 % |
| Max system capacity | 176.6 kWh | 214.5 kWh |
| Modules per stack | 7-23 | 5-15 |
| Continuous discharge power | - | - |
| Continuous charge power | - | - |
| Peak discharge power | - | - |
| Power per kWh | - | - |
| Round-trip efficiency | - | 90.0 % |
| Cycle life | 6000 cycles | 6000 cycles |
| Cycle test depth | 90 % | 90 % |
| Capacity at end of life | 70 % | 70 % |
| Self-discharge | - | - |
| Voltage class | High voltage | High voltage |
| Nominal voltage | 883 V | 720 V |
| Operating voltage | 745.2-993.6 V | - |
| Cell chemistry | LFP | LFP |
| Active cell balancing | - | Yes |
| Thermal management | - | Yes |
| Inverter | None (battery only) | None (battery only) |
| Inverter power | - | - |
| Grid connection | - | - |
| Backup power | - | - |
| Weight | 1710.0 kg | 1850.0 kg |
| Weight per kWh | 10.8 kg/kWh | 9.6 kg/kWh |
| Dimensions | 1921x1258x605 mm | 1136x2150x800 mm |
| Ingress protection | IP20 | IP20 |
| Outdoor-rated | - | - |
| Min operating temperature | -20 °C | -20 °C |
| Max operating temperature | 55 °C | 55 °C |
| Warranty | 10 yrs | 10 yrs |
| Warranted throughput | - | - |


## Related comparisons

- [Deye BOS-A (23 modules in series) vs GoodWe LX C156-10](https://comparepv.com/compare-batteries/bos-a-23-modules-in-series/goodwe-lx-c156-10) - 10 differences, the largest is usable energy
- [Deye BOS-A (23 modules in series) vs Huawei LUNA2000-161KWH-2H1](https://comparepv.com/compare-batteries/bos-a-23-modules-in-series/huawei-luna2000-161kwh-2h1) - 10 differences, the largest is usable energy
- [Deye BOS-A (23 modules in series) vs KSTAR BC197DE](https://comparepv.com/compare-batteries/bos-a-23-modules-in-series/kstar-battery-cabinets-cells-by-catl-bc197de) - 11 differences, the largest is usable energy
- [Deye BOS-B (15 modules in series; system config shown) vs Huawei LUNA2000-200KWH-2H1](https://comparepv.com/compare-batteries/deye-bos-b-15-modules-in-series-system-config-shown/huawei-luna2000-200kwh-2h1) - 9 differences, the largest is usable energy


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Source: https://comparepv.com/compare-batteries/bos-a-23-modules-in-series/deye-bos-b-15-modules-in-series-system-config-shown

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