Home › Range

AJ Power Range

Three LiFePO4 batteries designed for every use case: residential, large households, and professional. Scalable up to 720 kWh (16 units in parallel).

Our 3 models

A battery for every need

The entire range shares the same LiFePO4 chemistry, the same 6,000 guaranteed cycles, and the same inverter compatibility (Victron, Solis, Deye, Growatt, GoodWe). Only the capacity differs.

P15
15 kWh · 300 Ah
Batterie AJ Power P15
3,000€ excl. VAT
i.e. €3,600 incl. VAT — delivered
  • Household of 2 to 4 people
  • 16S1P architecture · 51.2 V
  • 6,000 cycles · 10-year warranty
  • Parallel up to 16 units
  • 118 kg · 80×30×68 cm
Product sheet Quote
P30
30 kWh · 600 Ah
Best-seller
Batterie AJ Power P30
5,000€ excl. VAT
i.e. €6,000 incl. VAT — delivered
  • Household of 4 to 6 people
  • 16S2P architecture · 51.2 V
  • Heat pump compatible
  • Parallel up to 16 units
  • 251 kg · 86×43×72 cm
Product sheet Quote
P45
45 kWh · 900 Ah
Batterie AJ Power P45
7,000€ excl. VAT
i.e. €8,400 incl. VAT — delivered
  • 6+ person home / Pro
  • 16S3P architecture · 51.2 V
  • Ideal for off-grid / commercial
  • Parallel up to 16 units
  • 345 kg · 85×43×100 cm
Product sheet Quote

Quick comparison

All technical specs side by side.

Specification P15 P30 P45
Usable capacity 15 kWh 30 kWh 45 kWh
Nominal capacity 300 Ah 600 Ah 900 Ah
Cell architecture 16S1P 16S2P 16S3P
Nominal voltage 51,2 V 51,2 V 51,2 V
Voltage range 42 – 58,4 V 42 – 58,4 V 42 – 58,4 V
Max charge/discharge current 200 A 200 A 200 A
Chemistry LiFePO4 LiFePO4 LiFePO4
Life cycles ≥ 6,000 ≥ 6,000 ≥ 6,000
Built-in BMS Yes Yes Yes
Built-in DC breaker Yes Yes Yes
Parallel connection up to 16 up to 16 up to 16
Communication CAN / RS485 CAN / RS485 CAN / RS485
Interface Touchscreen Touchscreen Touchscreen
Installation Floor · wheels Floor · wheels Floor · wheels
Ventilation Natural Natural Natural
Protection IP20 IP20 IP20
Charge temp. 0 / +45 °C 0 / +45 °C 0 / +45 °C
Discharge temp. -20 / +60 °C -20 / +60 °C -20 / +60 °C
Warranty 10 years 10 years 10 years
Weight 118 kg 251 kg 345 kg
Dimensions (H×W×D) 80×30×68 cm 86×43×72 cm 85×43×100 cm
Price excl. VAT 3 000 € 5 000 € 7 000 €

Which model for which use?

🏡

Standard residential

Consumption 4,000 to 8,000 kWh/year: P15 + 6 to 9 kWp panels.

👨‍👩‍👧‍👦

Family with heat pump

Consumption 8,000 to 15,000 kWh/year, HP + EV: P30 + 9 to 12 kWp.

🏢

Pro / Off-grid site

Commercial, agricultural, off-grid site: P45 or coupling of multiple units.

Frequently asked questions

What's the difference between LiFePO4 and NMC?
LiFePO4 (Lithium iron phosphate) is more thermally stable, doesn't catch fire, and offers 2 to 3 times more cycles than a standard NMC battery. It's the reference chemistry for residential stationary storage.
How many batteries can I connect together?
The entire range supports up to 16 units in parallel: P15 (240 kWh), P30 (480 kWh), P45 (720 kWh). Coupling is done via the built-in BMS and CAN/RS485 communication.
Are the batteries compatible with my inverter?
Yes, the entire range is compatible with the main hybrid inverters on the market: Victron, Solis, Deye, Growatt, GoodWe. CAN/RS485 communication. If in doubt, contact us with your inverter reference.
What does the 10-year warranty cover?

Duration: 10 years or 6,000 cycles — warranty ends at the first milestone reached.

Performance: the battery retains at least 80% of its nominal capacity throughout the warranty period.

Product: brand-new replacement in case of manufacturing defect during the warranty period.

Beyond that, the battery continues to operate normally (≥ 80% retained capacity). The built-in BMS logs cycles and capacity for full traceability.

Can I install the battery myself?
Technically yes, but the installation must comply with standard NF C 15-100 (LV installations) and guide UTE C15-712-3 (photovoltaic installations with battery storage connected to the grid). Grid connection can only be done by a QualiPV qualified installer. We recommend going through one of our certified partner installers.
What's the real lifespan?
6,000 cycles at 80% DoD, or about 15 to 18 years of normal residential use (one cycle per day). After 6,000 cycles, the battery still retains ≥ 80% of its initial capacity.

Need help choosing?

Our simulator calculates in 30 seconds the model adapted to your consumption.

Launch the simulator → Talk to an expert