Keep your RC batteries in top condition with the CAMWAY Cellmeter 7 battery tester! This handy device works with pretty much every battery type you might use - LiPo, LiFe, Li-ion, NiMH, and NiCd batteries from 2S to 7S. The bright LCD display shows you everything you need to know: individual cell voltages, total voltage, highest and lowest cell voltages, voltage differences, and remaining battery capacity as a percentage. With detection accuracy of 0.001V and current within 0.45A, you get precise readings that help prevent overcharging or over-discharging your batteries. The compact size (8.4x5x1.6cm) and light weight (45g) make it easy to carry in your RC case. Just note - this tester doesn't have balance function, and you'll need to provide your own connector cables (the ones that come with your batteries usually work fine). For NiMH/NiCd batteries, it shows total voltage only. Keeping tabs on your battery health has never been easier or more affordable!