As a preamble let's review the CellMeter7 Battery Capacity Checker, a digital battery capacity checker designed for Li-Po, Li-lon, NiCd NiMH, LiFe, and Li-Ion batteries.
This device can check the voltage and capacity of batteries with ease.

When subjected to testing the CellMeter7 proved to be an efficient tool for checking battery capacity. It can handle 4-7 cells for NiCd/NiMH batteries and 2-7 cells for Lithium types. The display mode shows battery cell voltages, total voltages, lowest cell voltage, highest cell voltage and the gap between the highest and lowest cell voltage. The item size is compact, making it easy to carry around.

The advantages outweigh the disadvantages for the CellMeter7 Battery Capacity Checker. Its small size makes it easy to use and transport and its ability to handle different types of batteries is a plus. However, some users have reported issues with the packaging being damaged during shipping.

In essence the CellMeter7 Battery Capacity Checker is a must-have for anyone seeking an affordable and efficient way to check their batteries' capacity. In my opinion, this device is a valuable addition to any RC hobbyist's toolkit.