The Cell Spy Plus makes checking the voltage of your LiPo packs easier than ever, especially for larger packs. It provides a digital read-out that can show up to 6 cell voltages in rotation. With 2.5mm pin spacing, it works with most of the LiPos on the market.

To use your Cell Spy Plus, plug it into the balance connector of your battery pack. Be sure to connect the negative port on your balance connector to the negative pin of the Cell Spy Plus. The unit will power up and begin displaying voltages from your pack. Allow about six seconds for the reading to stabilize when you connect a pack.

The display cycles through the individual cell voltages. The first number on the display indicates which cell is being checked. The second set of three numbers shows the voltage for that cell.

To test packs with more than six cells, start at the negative port on the balance plug, and once you have checked the first six cells, move the checker up the balance plug so that pin 1 on the checker is plugged into port 7 one the balance plug.

Be sure to disconnect the Cell Spy Plus once finished to prevent discharging your pack.