PARTS/REPAIR EMC 12V MODULE WITH 8X A123 26650 LIFEPO4
12V EMC MODULES WITH 8X A123 26650 ANR26650M1B CELLS!
These batteries have not been tested but they usually have a few bad cells inside or have been discharged. We opened 5 modules and found about half of the cells had voltage so these are hit or miss but the ones that are discharged you may be able to recharge and recover.
BELIEVE IT OR NOT, THESE BATTERIES SELL FOR $300-$500 TO HOSPITALS! BUT DAMN IT, WE ARE GOING TO BREAK THEM DOWN AND BUILD STUFF WITH THEM. YOU CAN SALVAGE THE GOLD FINGERS, COPPER COILS, PCB, AND ALUMINUM HEAT SINKS TO MAKE THIS AN EVEN BETTER DEAL! OR REBUILD THE PACKS TESTED AND SELL THEM AS WORKING.
ALL YOU NEED IS A T8 SECURITY BIT TO OPEN THESE.
THE BMS IS PROPRIETARY, MAYBE YOU CAN FIGURE IT OUT BUT THE VALUE HERE IS THE CELLS. THESE WERE USED AS BACKUP ONLY AND THESE USUALLY TEST NEAR FULL CAPACITY. WE TESTED A LOT OF THESE CELLS AND THEY ARE AWESOME.
CHECK OUT THE AWESOME SPECS OF THE CELLS. THIS IS THE BEST A123 CELL ON THE MARKET AND THE NEWEST VERSION
Voltage: 3.3 Volts
Capacity: 2.5 Ah
Energy: 8.25 Wh
Specific Power: 2600 W/kg
Impedance (1KHz AC Typical) 6 mΩ
Cycle Life at 1C/1C, 100% DOD: > 4000 cycles
Cell Type: 26650 Lithium Ion Power Cylindrical Cell
Max Continuous Discharage: 50 A
Max Pulse Discharge Current >50% SOC (10s): 120 A
Minimum Voltage: 2 Volts
Temperature: -30ºC to 55ºC
Recommended Standard Charge: 2.5 Amps
Max Charge Rate: 10 Amps
Max Pulse Charge Current <50% SOC (10s): 25 A
Float Voltage: 3.45 Volts
Recommended charge V & Cut-off Current: 3.6 Volts, taper to 125mA
(reduce charging current to 250mA when under 0ºC): 0ºC to 55ºC
Diameter: Ø25.96 +/- 0.5 mm
Length: 65.15 +/- 0.5 mm
Mass: 76 g
Transportation: UN 3480 (UN38.3), CIQ
Safety: UL 1642, IEC 62133