The Digital Battery Capacity Checker RC Cell Meter 7 is a essential tool for RC enthusiasts, specifically designed for electric airplane models. This capacity checker, known as the Cellmeter-7, accurately checks the battery capacity for various types such as LiPo, LiFe, and NiMH batteries. Compatible with any brand and scale, this handy device ensures that you always have a clear understanding of your battery's power levels for optimal performance during flights. Stay on top of your battery health with this reliable capacity checker.