Miniature Lipo Capacity Display- Instructions provided. 

As standard, the meter is set for 2S (7.4V) but can easily be changed to 1S, 3S or 4S as follows:

On the rear of the unit you will see some solder pads. In order to change the setting of the meter the 2 pads highlighted on the picture above need to be briefly shorted together whilst the meter is powered up. If you take a small piece of wire you can just touch it across these 2 pads. Repeatedly touching across these pads will cycle the meter through its various settings (1S, 2S, 3S etc, each time the display will briefly show the number of cells it is set to & then display the % capacity remaining.

IMPORTANT: Do not connect with the polarity reversed or the unit will be permanently damaged.