There are no shortages of battery checkers on the market, but this Cellmeter 7 from Valley View (www.valleyviewrc.com) has a lot of great features I have not seen in one checker before. It’s easy and safe to use and can check LiPo/LiFe/Li-Ion batteries with 2-7cells, Nicd/NiMH batteries with 4-7cells and read out total voltage, total battery cell capacity (0-99%), lowest cell voltage, highest cell voltage, voltage diference between the highest and lowest cell, making it a complete battery voltage & capacity tester. As you can tell – I’m impressed.