I demonstrate how to use a multi-meter to check the instantaneous amp output of AA batteries, and an OPUS BT-C3100 capacity tester to determine their mAh capacity.

Amazon Affiliate links:
Opus C3400 capacity tester: https://amzn.to/3kUyk0f
Fluke 115: https://amzn.to/3kYA09a
Eneloop AA batteries: https://amzn.to/39U3vSY