---
title: "Deye BOS-A (7 modules in series) 48.38 kWh Battery: Specs & Datasheet | ComparePV"
description: "Deye BOS-A (7 modules in series) 48.38 kWh home battery. Specs: 6000 cycles, 538.0 kg, 10 yrs warranty."
source: "https://comparepv.com/battery/bos-a-7-modules-in-series"
updated: 2026-01-10
---

# Deye BOS-A (7 modules in series)


## Identity

- **Manufacturer:** Deye
- **Model:** BOS-A (7 modules in series)
- **Series:** BOS-A
- **Usable energy:** 48.38 kWh
- **Voltage class:** High voltage
- **Cell technology:** LFP


## How it compares

Compared against 29 batteries from 20 to 50 kWh. Ranks are within that class.


| Measure | This battery | Class median | Standing | Rank in class |
| --- | --- | --- | --- | --- |
| Round-trip efficiency | - | 95.0% |  |  |
| Power per kWh | - | 0.51 |  |  |
| Cycle life | 6000 | 6000 | Typical | 2 |
| Weight per kWh | 11.1 | 11.1 | Typical | 15 |
| Warranty | 10 yrs | 10 yrs | Typical | 2 |


## Specification


### Capacity

- **Usable energy:** 48.38 kWh
- **Nominal energy:** 53.76 kWh
- **Depth of discharge:** 90 %
- **Module energy:** 7.68 kWh
- **Modules per stack:** 7 to 23
- **Max system capacity:** 176.6 kWh


### Power

- **Max discharge current:** 150 A
- **Max charge current:** 150 A


### Efficiency and lifetime

- **Cycle life:** 6000 cycles
- **Capacity at end of life:** 70 %


### Cells and voltage

- **Voltage class:** High voltage
- **Nominal voltage:** 268.8 V
- **Operating voltage:** 235 to 302 V
- **Cell technology:** LFP
- **Cell management:** Cobalt-free


### Physical

- **Dimensions:** 1351 × 629 × 605 mm
- **Weight:** 538.0 kg
- **Enclosure:** IP20
- **Mounting:** rack
- **Operating temperature:** -20 to 55 °C


### Compatibility

- **Compatible inverters:** Deye (mentioned: remote upgrade compatible)
- **Protocols:** CAN2.0, RS485


### Warranty and certificates

- **Warranty:** 10 years
- **Certifications:** CE, IEC62619, IEC62040, UN38.3, VDE-2510


## About this series

The BOS-A series are modular LiFePO4 (LFP) energy storage units designed for building scalable high-voltage (HV) systems for homes and small businesses. The applied LFP chemistry stands out for its high thermal safety level and stable performance during daily cycling, which in practice translates to a longer lifespan and lower degradation risk compared to NMC-based solutions. Each module operates within a rack configuration, and the intelligent BMS automatically monitors charging and discharging, balances cells, and protects against overloading and extreme temperatures.

The BOS-A is designed as a **scalable system** - you can add more modules as energy consumption, PV system capacity, or backup power needs increase. CAN communication facilitates **seamless integration** with hybrid inverters and on-grid or off-grid systems, where smooth mode switching is essential. The rated cycle life and **10-year warranty** ensure predictable energy costs over the long term - both for prosumers and businesses.


## Datasheet

[Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/batteries/bos-a-717789dd1961.pdf)


## Alternatives


| Battery | Usable energy | Round-trip | Power | Voltage | Difference |
| --- | --- | --- | --- | --- | --- |
| [Deye BOS-G50](https://comparepv.com/battery/bos-g50) | 46.08 kWh |  |  | HV | -2.3 kWh |
| [Deye BOS-G55](https://comparepv.com/battery/bos-g55) | 50.68 kWh |  |  | HV | +2.3 kWh |
| [Deye BOS-G45](https://comparepv.com/battery/bos-g45) | 41.47 kWh |  |  | HV | -6.9 kWh |
| [Deye BOS-G60](https://comparepv.com/battery/bos-g60) | 55.29 kWh |  |  | HV | +6.9 kWh |
| [Deye BOS-G60 Pro](https://comparepv.com/battery/deye-bos-g60-pro) | 55.3 kWh |  | 61.4 kW | HV | +6.9 kWh |
| [Deye BOS-G40](https://comparepv.com/battery/bos-g40) | 36.86 kWh |  |  | HV | -11.5 kWh |
| [Deye BOS-G40 Pro](https://comparepv.com/battery/deye-bos-g40-pro) | 36.86 kWh |  | 41.0 kW | HV | -11.5 kWh |
| [Sigenergy SigenStor BAT stack (6 modules)](https://comparepv.com/battery/sigenergy-sigenstor-bat-stack-6-modules) | 48.36 kWh |  | 24.0 kW |  | Similar on paper |


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Source: https://comparepv.com/battery/bos-a-7-modules-in-series