Fuel Gauge for PCB of 3.7v Li-Ion Battery Pack

Note: This fuel gauge is not intend to be use as a very accurate reading of the battery pack's capacity. The battery level indication can vary by 5% depending on the capacity of the pack!

Features

• Apply to PCB/PCM of 1 cell Li-ion / Polymer Li-ion 3.7V battery pack.
• No external power is need
• Can connect directly to pcb/pcm via special connector on board or connect directly to output of battery pack
• 5 LEDs display battery pack's voltage. The voltage listed below is base on battery during discharge. (The actual voltage might vary for LED 2-4 during charging.) 
  • 1 LED Flashing = pack voltage  < 2.8V  (must recharge battery)
  • 1 LED = pack voltage: 2.7-3.6V  (battery need recharging)
  • 2 LED = pack voltage: 3.3-3.9V
  • 3 LED = pack voltage: 3.6-3.9V
  • 4 LED = pack voltage: 3.8-4.2V
  • 5 LED = pack voltage: 4.2V or higher ( battery is fully charge)

Specifications

• Power consumption: Max 2mA
• Dimension (LxWxH): 51mm x 26mm x 4mm
• Weight: 0.17 Oz (5g)
• Connector: 5.3" long 2 pin Female SH connector
•  Please click here to download the specification of 2 pin Female SH connector with housing diagram 

Warning:

• Please check polarity before making connection to avoid damaging the module.
• This fuel gauge is use for 3.7V pack only or it will damge the fuel guage. 
• Please make sure your selection is correct before purchasing.