Bioenno BLF1220 – 20 Ah

Specifications

Chemistry – LiFePO4
Nominal V – DC 13.0 V
Weight –  84.1 oz (2385 g)
Volume (excl wires) – 75 in³ (1229 cm³)

Claimed capacity – 20,000 mAh

320 mA (0.016 C) discharge rate – 19,152 mAh capacity, running time 59:27:45
1300 mA (0.065 C) discharge rate – 19,591 mAh capacity, running time 14:58:38
2100 mA (0.105 C) discharge rate – 19,373 mAh capacity, running time 9:09:42
10,000 mA (0.5 C) discharge rate – 16,334 mAh capacity, running time 1:37:19
TR Cycle – (alt. 0.18-1.8 A discharge) – 19,567 mAh capacity, running time 25:26:01

Measured Energy – 254.68 Wh @ 0.65 C rate

Measured Specific Energy  – 2.57 Wh/oz (107 Wh/kg)
Measured Energy Density – 2.96 Wh/in³ (207 Wh/L)

Notes

This particular battery is four years old and has been cycled many times for Field Day and other use.  The Bioenno claims to be constructed using premium LiFePO4 cells and it’s performance shows it.  It delivered 98% of advertised output, which is excellent for a four year old battery.  Also, the voltage was flatter over it’s discharge than any other battery or cell tested.