This digital 4-cell battery meter plugs into the balance connector on your battery, and reads out the voltage of each cell in the pack, cycling through each battery every 2 seconds. The input connector has a standard 2.54mm (0.100 inch) spacing, and will work with our X-Caliber batteries, or any other battery that has a balance connector with 0.100 inch pin spacing.

If you would like to use this meter with a Thunder Power battery, or any other battery that has a pin spacing of 2.00mm (0.079 inch) then you can get one of our Thunder Power to X-Caliber Balance Connector Adapters

This meter features reverse polarity protection, so if you hook it up backwards it will not be damaged, the display will simply not light up. If this happens, just flip the connector over and try again.

The meter is powered from the first cell in the pack, so it can be used to read single cells, 2-cell, 3-cell or 4-cell battery packs. The meter can be also used on batteries with more than 4 cells by simply plugging it in at the bottom edge of the connector to read the first 4 cells, then move it up higher on the connector as required to read the remaining cells in the pack.

The meter has an accuracy of + or - 0.02 volts per cell, and is good for checking the general condition of a battery, and whether the battery is charged or not.