Just 4 copies of LiPo Checkers obtained and tested. I agree with the positive reviewers. Comparison meters were a 20 and 60 Euro expensive multimeter. All! Readings at different voltages were in the specified tolerance of 0.01 V (as well as I did not think). Since the LiPo Checker is a billges device for rapid testing of batteries, an unexpectedly good result that, in any case can replace with my 4 copies, a 60 euro expensive multimeter. Once installed in a helicopter, another is used for battery discharged to the desired storage voltage of approximately 3.8V or when the next day I fly to max. 4.1 V / cell. For this I include or 2 halogen lamps 12V - 20W to the battery and wait until the thing honks, all the way to my tinkering - Super matter! For further measurements (capacity, etc.) is the little thing eh not provided. Conclusion: Super easy to use and very accurate - Recommended!
