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BOS-G25 Pro vs AI-W5.1-B (5 modules) 12 of 24 identical Swap Change batteries

Deye BOS-G25 Pro vs Deye AI-W5.1-B (5 modules)

Deye BOS-G25 Pro
BOS-G25 Pro
23.04 kWh LFP HV
Open battery page Datasheet PDF
VS
AI-W5.1-B (5 modules)
23 kWh LFP LV
Open battery page Datasheet PDF
The verdict

BOS-G25 Pro leads on the differences that matter

The largest is continuous discharge power: 12.80 kW more power. 12 of 24 comparable parameters are identical, with 9 more left out because at least one datasheet does not publish them.

See all 12 differences
How alike are they
12 of 24 comparable
parameters are identical
identical differs not published
01

What actually differs

12 of 24 parameters
Parameter BOS-G25 Pro AI-W5.1-B (5 modules) Difference
Continuous discharge power 25.60 kW 12.80 kW 12.80 kW more power
Max system capacity 81.9 kWh 30.7 kWh 51.2 kWh more room to expand
Continuous charge power 25.60 kW 12.80 kW 12.80 kW faster charging
Peak discharge power 32.00 kW 18.43 kW 13.57 kW more surge
Power per kWh 1.11 kW/kWh 0.56 kW/kWh 0.55 kW/kWh more power for its size
Nominal voltage 256 V 51 V 205 V apart
Weight 290.0 kg 286.5 kg 3.5 kg lighter
Voltage class High voltage Low voltage High voltage vs Low voltage
Ingress protection IP20 (battery enclosure) IP65 (after stacking) IP20 (battery enclosure) vs IP65 (after stacking)
Modules per stack 5-16 1-6 5-16 vs 1-6
Operating voltage 220-292 V 43.2-57.6 V 220-292 V vs 43.2-57.6 V
Dimensions 1629x530x602 mm 1693x720x255 mm 1629x530x602 mm vs 1693x720x255 mm

Shop prices by brand: See 44 Deye offers

02

Full specification

Parameter BOS-G25 Pro AI-W5.1-B (5 modules) Difference
Capacity
Usable energy 23.04 kWh 23.00 kWh Effectively the same
Nominal energy 25.60 kWh 25.60 kWh Same
Depth of discharge 90 % 90 % Same
Max system capacity 81.9 kWh 30.7 kWh +51.2 kWh for BOS-G25 Pro
Modules per stack 5-16 1-6 5-16 vs 1-6
Power
Continuous discharge power 25.60 kW 12.80 kW +12.80 kW for BOS-G25 Pro
Continuous charge power 25.60 kW 12.80 kW +12.80 kW for BOS-G25 Pro
Peak discharge power 32.00 kW 18.43 kW +13.57 kW for BOS-G25 Pro
Power per kWh 1.11 kW/kWh 0.56 kW/kWh +0.55 kW/kWh for BOS-G25 Pro
Efficiency and lifetime
Round-trip efficiency - - Neither datasheet publishes this
Cycle life 6000 cycles 6000 cycles Same
Cycle test depth 90 % 90 % Same
Capacity at end of life 70 % 70 % Same
Self-discharge - - Neither datasheet publishes this
Electrical
Voltage class High voltage Low voltage High voltage vs Low voltage
Nominal voltage 256 V 51 V 205 V apart
Operating voltage 220-292 V 43.2-57.6 V 220-292 V vs 43.2-57.6 V
Cell chemistry LFP LFP Same
Active cell balancing - - Neither datasheet publishes this
Thermal management - - Neither datasheet publishes this
Built-in inverter
Inverter None (battery only) None (battery only) Same
Inverter power - - Neither datasheet publishes this
Grid connection - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 290.0 kg 286.5 kg -3.5 kg for AI-W5.1-B (5 modules)
Weight per kWh 12.6 kg/kWh 12.5 kg/kWh Effectively the same
Dimensions 1629x530x602 mm 1693x720x255 mm 1629x530x602 mm vs 1693x720x255 mm
Ingress protection IP20 (battery enclosure) IP65 (after stacking) IP20 (battery enclosure) vs IP65 (after stacking)
Outdoor-rated - - Neither datasheet publishes this
Min operating temperature -20 °C -20 °C Same
Max operating temperature 55 °C 55 °C Same
Warranty
Warranty 10 yrs 10 yrs Same
Warranted throughput - 16.0 MWh Not published by Deye
03

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04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.