Indispensable, always in your pocket (mini size and extra flat 4mm!), To know in an instant, the state of charge of your batteries, total voltage but also element by element by simply pressing a button.
The battery is connected to the VOLT SPY via the battery charging socket (service). This input is protected against polarity inversions.
For LiPo and LiFe batteries: 1, 2, 3 or 4 elements Battery voltage control: 7LED (blue, green, yellow and red) Element voltage control: 4LED (blue, green and red) LiPo / LiFe selection: by micro switch Pack / element voltage selection: by touch key