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Protection Circuit Module (PCB) with LED Fuel Gauge for 10 cells (12V, 5A limited) NiMH/NiCd Battery Pack (#6520)

Your Price: $6.95
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Product ID # 6520
Part Number:

Protection Circuit Module with LED Fuel Gauge For 12V NiMH/NiCd Battery Packs

This protection circuit is specially designed for 12V NiMH/NiCd Battery pack with upto a max of 5.0A discharging rate.  

( If you need other voltage PCB, please contact us for details!)

  • Keep 12V  NiMH/NiCd Battery pack from over-discharge (10V)
  • No over-charge protection
    • Must use the correct voltage charger to properly charge the battery pack!
  • Max discharging /charge current <5.0A.
  • PCB will cutoff at 9.7V to protect battery pack from over discharge
  • 5 LEDs display battery pack's voltage (press button to turn on LEDs indicators, it will turn off when you let go)
    • LED1 (Red) = pack voltage: 10.8-11.5V  (must recharge battery ASAP)
    • LED2 (Yellow) = pack voltage: 12.5-12.9V  (battery need recharging soon)
    • LED3 (Green) = pack voltage: 13-13.4V
    • LED4 (Green) = pack voltage: 13.5-13.9V
    • LED5 (Green) = pack voltage: > 14V ( battery is fully charge)
    • NO LED - disconnect the load (device) and recharge the pack ASAP!!
  • To Reset the pcb:
    • Connect a 12V charger to "Reset" the pcb once the pcb is open when battery pack voltage drop below 9.7V
    • If you have a multi-voltage charger, it might not "reset" the pcb, you can "reset" the pcb by:
      • Connect the charger directly to the Batt+ and Batt- of the pcb
    • If you cannot remove the load, then you can add an on/off switch like this to "reset" pcb and start charging:
      • battery-------->pcb------> switch --------->load


      • Apply for 10 Cells NiMH/NiCd Battery pack with discharging current  <5.0A

    Please connect battery pack with the circuit as specs.   Please click here to download specification with wiring diagram  


    • Misusing PCB may cause battery damage or explode.  We are not responsible for any damage caused by user.
    • Don't use this PCB with Li-Ion / LifePo4 battery pack
    • Must charge battery up to 12VDC minimum
    • Must disconnect load from PCB to "Reset" PCB before charging
    • Since this PCB does not have over-charge protection function, must use our 12.0V NiMH/NiCd smart charger to recharge 12V battery pack.

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