The rechargeable PBQ (Airbatt) LiFe PO4 battery employs lithium iron phosphate as its cathode and carbon as its anode.
The nominal cell voltage is 3.2V Four cells are placed in series in order to create 12.8V.
To protect the battery from over charging and over discharging the battery is equiped with a internal battery management system (BMS).
The BMS also takes care of the balance between the internal cells.
To avoid overheating of the battery, a special insertion, called PTC, is added to the electrolyte.
This additive neutralizes the electrolyte and disables the battery permanently if the internal temperature exceeds 80°C.
All batteries of this type have a special oneway valve to allow the disaggregate-tire solvent gases to escape.
The battery may be installed in any direction, only upside down is not recommended.
The battery is contained in a flame Retardant ABS

General features:
-More than 2000 deep cycles
-Excellent high-rate discharge and recharge capabilities
-Third the weight of an equivalent lead acid battery
-Long service life
-Maintenance free operation
-Excellent safety

Specifications:
Voltage: 12.8V
Capacity: 20Ah
Operating temperature: -20°C to 60°C
Voltage range: 10V to 14.8V
Maximum discharge current (continues): 20A
Maximum discharge current (pulse): 80A
Terminal : Insert M5
Weight: 3120gram
Appr. dimensions: LxWxH = 181x77x167mm