12 Volt 40 Amp hour engine starting battery.
LiFePO4, Lithium Iron Phosphate
 
SPECIFICATIONS
12V-40Ah
Voltage 12.8 V 
Nominal Capacity (C/5, 23°C)  40 Ah
Rated CCA 320 CCA
Comparable CCA 900 CCA
Weight Approx 7.0kg
Dimensions 260 x 173 x 180Hmm
Terminals M10 FEM side post
Energy Density 104 Wh/l 
DC internal  resistance (max)     <1.5 mΩ 
Operating temperature -10°C to +50°C
Storage temperature -20°C to +45°C
Operating humidity 25% to 85%
Water/dust resistance IP56
Shock and vibration  IEC62133, DIN VG96  924
Certifications FCC Class B, CE, UL2054
Shipping Classification UN 3480, Class 9
Standard Discharge @ 23°C  Max. Cont. Current  40A
Max. 10 sec. Pulse  400A
Run-time @ 10A  240 min 
Run-time @ 30A  80 min
Standard Charge Charge Voltage 14.6 V 
Float Voltage   13.8 V 
Recommended charge current. 15A
Maximum charge current 40A
Charge Time from flat 3.5 hrs 
Expected life span, After discharging 80% of capacity 2000 cycles, 80% of capacity still remains.
This battery has cell balancing but no high or low voltage cutout.