Digital Multi-cell Lithium Battery Voltage LED Display for R/C Models

If you use LiPo batteries, you need this device. SERIOUSLY.

This small and easy-storage tool shows voltage in each cell and total voltage as well. Specifically, it indicates which battery cells need to be balanced (if you have that type of charger), and also shows when you need to dispose of your battery because of a dead cell.

Features

• Used for up to 4-Cell Li-Po Battery
• Auto shift the voltage data one unit by one unit
• Reverse polarity protection
• Low current consumption
• Dimensions: 1.57 in x 1.22 in x 0.31 in
• Weight: 0.28 oz (light enough to be used on a plane!)