AA Portable Power LFP-G4S40AH
The AA Portable Power LFP-G4S40AH is a battery pack with a nominal voltage of 12.8 V (working) 14.6 V (peak) 11.2 V ( cut-off), a rated capacity of 40Ah and 512Wh of energy.
Last updated: 11 October 2026
Battery and charging
- Energy
- 512Wh
- Voltage
- 12.8 V (working) 14.6 V (peak) 11.2 V ( cut-off)
- Rated capacity
- 40Ah
- Rated charge cycles
- > 1500 cycles (80% of initial capacity @ 0.2C rate, IEC Standard)
“LiFePO4 Prismatic Battery: 12.8V 40Ah (512Wh, 10C Rate) - UN38.3 Passed (3.2Vx4 DGR)”
Source: batteryspace.com/lifepo4-prismatic-battery-12-8v-40ah-512wh-10c-rate---un38-3-passed-3-2vx4-dgr.aspx
“12.8 V (working) 14.6 V (peak) 11.2 V ( cut-off)”
Source: batteryspace.com/lifepo4-prismatic-battery-12-8v-40ah-512wh-10c-rate---un38-3-passed-3-2vx4-dgr.aspx
“LiFePO4 Prismatic Battery: 12.8V 40Ah (512Wh, 10C Rate) - UN38.3 Passed (3.2Vx4 DGR)”
Source: batteryspace.com/lifepo4-prismatic-battery-12-8v-40ah-512wh-10c-rate---un38-3-passed-3-2vx4-dgr.aspx
“> 1500 cycles (80% of initial capacity @ 0.2C rate, IEC Standard)”
Source: batteryspace.com/lifepo4-prismatic-battery-12-8v-40ah-512wh-10c-rate---un38-3-passed-3-2vx4-dgr.aspx
Size and fit
- Overall dimensions
- 125x208x180 mm (4.9x8.2x7.1 inches)
- Terminals
- included 2 pcs (product ID#6751 or #prod#9875 depends on availability)
“125x208x180 mm (4.9x8.2x7.1 inches)”
Source: batteryspace.com/lifepo4-prismatic-battery-12-8v-40ah-512wh-10c-rate---un38-3-passed-3-2vx4-dgr.aspx
“Included 2 pcs (product ID#6751 or #prod#9875 depends on availability)”
Source: batteryspace.com/lifepo4-prismatic-battery-12-8v-40ah-512wh-10c-rate---un38-3-passed-3-2vx4-dgr.aspx
Buying and owning it
- Assembly required
- This battery is packed by 4pcs 3.2V 40Ah single cells, you need to use the included nickel bars to connect them into 12.8V 40Ah.
“This battery is packed by 4pcs 3.2V 40Ah single cells, you need to use the included nickel bars to connect them into 12.8V 40Ah.”
Source: batteryspace.com/lifepo4-prismatic-battery-12-8v-40ah-512wh-10c-rate---un38-3-passed-3-2vx4-dgr.aspx
Sources
- LiFePO4 Prismatic Battery: 12.8V 40Ah (512Wh, 10C Rate) - UN38.3 Passed (3.2Vx4 DGR)Archived document
Source: batteryspace.com/lifepo4-prismatic-battery-12-8v-40ah-512wh-10c-rate---un38-3-passed-3-2vx4-dgr.aspx
Retrieved October 10, 2026