kevinkal
Insatiable Hobbyist
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My Stratologger CFs just arrived (thanks Perfectflite), so this was a good read
I never trust batteries straight out of the box - always give them a quick test on a multimeter. I've always got a cheap one in my range box, similar to this one:
I note someone mentioned that twist and tuck 'seems so archaic' - It is the simplest, cheapest and IMHO most reliable 'switch' that I know of :wink:
I was waiting for the guy in the video to use the new DMM he had.. with the battery test function that puts a "load' on the battery. But he didn't... bah. That's a good idea for batteries that might have a surface charge.. showing voltage that they cannot supply under load. I suppose that's what gets me with the 9V alkaline batteries that I test after the smoke alarm is beeping. I get the unloaded value.. which appears to be ok. but there's no muscle behind it and the smoke alarm knows it. Perhaps I'll use a low ohm power resistor inline with my DMM next time I test. I found some 10 watt 50 Ohm resistors in the garage. they might be a good test load.
Aside, I just finished my StratologgerCF testing with a 1S LiPo. I'll post the results in a short while.