Fuel Gauge for PCB of 7.4v Li-Ion Battery Pack with 5.5x2.1mm Male Plug

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

• Fuel Gauge with 6.0" 5.5x2.1x10mm Male Plug
• Inside barrel = +
• Apply to PCB/PCM of 2 cells Li-ion / Polymer Li-ion 7.4V 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  < 5.5V  (must recharge battery)
  • 1 LED = pack voltage: 5.4-6.8V  (battery need recharging)
  • 2 LED = pack voltage: 6.7-7.3V
  • 3 LED = pack voltage: 7.2-7.7V
  • 4 LED = pack voltage: 7.6-7.8V
  • 5 LED = pack voltage: 8.0V or higher ( battery is fully charge)

Specifications

• Power consumption: Max 2mA
• Dimension (LxWxH): 51mm x 26mm x 4mm
• Weight: 1.5Oz 42.5g

Warning:

• Please check polarity before making connection to avoid damaging the module.
• This fuel gauge is use for 7.4V pack only or it will damge the fuel guage. 
• Please make sure your selection is correct before purchasing.