У вашего броузера проблема в совместимости с HTML5
Grab yours here: https://goo.gl/WM3nPA
Click on "SHOW MORE" for more info...
My review is here: https://www.rcgroups.com/forums/showthread.php?3042202-Review-of-AOKoda-AOK-041-1S-Lithium-Battery-Tester-Checker-For-JST-MOLEX-mCPX-MCX-Plu
I also use:
3.7V 1S Lipo LiHv 6xBattery Charger Board - https://goo.gl/gJeJqo
ANENG AN8002 Digital True RMS 6000 Counts Multimeter AC/DC Current Voltage Frequency Resistance Temperature Tester ℃/℉ - https://goo.gl/dELjpN