The innovation for glider pilots
AIRBATT Energy Power Lithium Iron Phosphate Batteries

AIRBATT Energiepower lithium iron phosphate batteries ( LiFePO4 ) are made of high-quality, certified cells and offer several advantages over standard lead batteries of the same size:

• 1/2 weight for the same size - only 1,4 Kg
• 2500 charging cycles vs. 350 to 600 charging cycles
• 100% capacity utilisation vs. 65% recommended depth of discharge
• Quick charge capability (2C)
• integrated BMS (battery management system) with:
  • charging balancing of the individual cells
  • Protection circuit against short circuit
  • Deep discharge protection

LiFePO4 batteries have a higher energy density than standard lead-acid batteries of the same size, meaning that weight savings of approx. 50% can be achieved. AIRBATT LiFePO4 batteries also score highly in terms of depth of discharge, cycle count and charging time. LiFePO4 batteries allow almost 100% of their capacity to be used. In contrast, lead-acid batteries should not exceed a recommended depth of discharge of more than 65% in order to avoid entering the deep discharge range, which is harmful to the batteries. With up to 3000 charging cycles, AIRBATT LFP Premium batteries achieve many times more than conventional lead-acid batteries, which have a range of 350 to 600 charging cycles depending on the manufacturer and product series. The AIRBATT Premium series has a recommended charging current of 6A (2C) and a maximum charging current of 12A (1C), making the batteries suitable for fast charging.

AIRBATT Energiepower LiFePO4 batteries are tested batteries. During quality control, each individual battery is subjected to the following tests:

• Capacity test 
• High frequency test 
• acceleration test 
• high current test

The BMS integrated in the battery housing is equipped with an active balancer for charge balancing of the individual cells, a protective circuit against short circuits, as well as a deep discharge protection. Because the BMS limits the current to 40A, the AIR-LFP 12-12 Premium is not suitable for use as a starter battery. With our AIRBATT Startpower product series, we offer you LiFePO4 starter batteries with high starting current and low weight.

We offer chargers for the AIRBATT Energypower series with the lead-acid and LiFePO4 chargers of the AIRBATT Powercharger product line. Commercially available lead-acid chargers with a charging voltage between 14.5V and max. 14.8V with an IU charging curve (CCCV) can also be used. It is imperative to ensure that the LiFePO4 batteries are not exposed to a charging voltage of more than 15V, otherwise they may be damaged. Chargers with Refresh or Recond mode and a charging voltage of 15.5V (or more) are therefore completely unsuitable. With these devices, it is not ensured that this automatic charging system, which is designed for lead batteries, does not also start with LiFePO4 batteries.

  !   !   !   A T T E N T I O N !   !
*The battery consists of individual cells in their own housings and electronics and is therefore a battery device.

*The plastic housing is only an enclosure and is not waterproof. Submersion of this battery is not possible.

*The series connection (24V circuit) is only possible under certain conditions and after consultation with an ACCU-24 employee!

*The battery is a supply battery and not a starter battery.

*Export to the United States of America is not permitted without written consent from ACCU-24.

*It is essential to observe the specifications of the aircraft manufacturer and the operating Manual!

Technical specifications