[Chadworkz]

That PCB is wired between the LiPo battery and the device, and it acts as a voltage/amperage traffic cop, stopping the LiPo from over-discharging or doing exactly what you don't want it to do.

If you take apart certain Lithium batteries for things like cell-phones and audio-devices, you almost always see a similar PCB wired to the battery to keep it from over-discharging or over-charging.

The PCB linked to above is EXACTLY what you need.