How to check your NiMH battery pack's capacity with Tenergy's 5-in-1 Cell meter - YouTube
RC Cellmeter 7 Digital Battery Capacity Checker Controller Tester Voltage Tester for LiPo Life Li-ion NiMH Nicd Cell Meter
Digital Battery Capacity Checker For Lipo Life Li-ion Nicd Nimh Battery Voltage Tester Checking Meter Capacity Controller - Battery Testers - AliExpress