Kstar, BP48100PF1A-G2 (2P to 8P stacks)
Kstar BlueSpark BP48100PF1A-G2
51.2 V low-voltage LFP battery module with 5.01 kWh usable, stacking from one to eight modules for 5.01 to 40.14 kWh.
- Usable
- 5.01 kWh
- Continuous power
- 4.1 kW
- Warranty
- 10 yrs
- Federal discount now
- $1,260 to $1,360
Our read of the datasheet
The BP48100PF1A-G2 is a 51.2 V low-voltage LFP module that stacks from one to eight units, each giving 5.01 kWh usable at 98% depth of discharge. It needs a separate 48 V hybrid inverter, and that inverter sets the phase, the backup arrangement and the output to your home.
One module is rated at 4.096 kW of charge and discharge power and two at 8.192 kW. From three modules up, the stack is capped at 12.288 kW. The two-module stack (10.03 kWh) sits under the 14 kWh point where the federal discount rate drops, and the three-module stack (15.05 kWh) goes just past it. Compare these figures with the kWh your home uses after sunset.
The datasheet lists a 10-year warranty but no throughput or end-of-warranty capacity figure, so ask for the warranty terms with your quote. It charges and discharges from -10 to 50 C and is rated IP65 for indoor or outdoor installation.
We have not tested this battery. This summary follows from the manufacturer's published specifications, checked 23 September 2026.
Strengths
- 5 kWh steps from 5.01 to 40.14 kWh
- Stack power up to 12.288 kW from three modules
- Charges and discharges from -10 C
Things to check
- Needs a separate 48 V hybrid inverter
- No throughput or end capacity figure on the datasheet
- Three or more modules pass 14 kWh, where the discount rate drops
Specifications
- Usable capacity
- 5.01 kWh
- Nominal capacity
- 5.12 kWh
- Chemistry
- LFP
- Continuous power
- 4.1 kW
- Phases
- Set by the paired 48 V hybrid inverter
- Backup
- Set by the paired inverter
- Expansion
- Up to 8 modules (40.14 kWh); stack power rises to 12.288 kW from 3 modules
- Warranty
- 10 years
- Warranty terms
- 10 years
- IP rating
- IP65
- Weight
- 50.5 kg
- Dimensions
- 725 x 465.5 x 245 mm
- Operating temperature
- -10 to 50 C
Compare with
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- Usable
- 13.99 kWh
- Continuous power
- 5.04 kW
- Warranty
- 10 yrs
Anker SOLIX
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- Continuous power
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- Warranty
- 10 yrs
BYD
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High-voltage LFP battery stack of 3 to 8 modules, 8.28 to 22.08 kWh usable per tower, that pairs with a compatible third-party hybrid inverter.
- Usable
- 8.28 kWh
- Continuous power
- 7.68 kW
- Warranty
- 10 yrs