Hi @Benerator first off, my friend wanted to ask about how to get a nice foam case like you have in the photos on this page: https://mekamon.com/community (scroll down). If you could send any info on that, this would be great!
About the batteries, I borrowed one off my friend (who bought a version 2 over Christmas) so I could (more) safely do the firmware update on my v1 (has totally dead cells).
I noticed a couple of odd things about his battery though, when the battery ran out of power (mekamon stopped) I measured the voltage on the contacts. It was something worryingly low like 6.5V iirc. Waaaay too low for a 3S lipo. Most RC folks will say don’t take stuff lower than 3V per cell. I recently read the datasheet for some of the adafruit 1S 1200mAh lipos though that have protection circuits attached and the circuits cut out at 2.5V low, 3.5V high. I think the numbers thrown around by RC folks (3V min, 4.2V max are more about getting absolute maximum longevity/re-use out of cells).
When I charged up my friend’s battery… similarly disturbingly it measured 13+ V on the contacts. Really not sure how it got that high but doesn’t sound good. I’d have thought really a max charge should be 12.6V and definitely not more than 13.5V.
Obs., don’t know what the internal cells were reading before/after the charge (not opened his battery) but I have a feeling he might have one hammered cell. I’d probably have placed a bet on 2 of them being at 3.2V and one being 0.1V
Nothing concrete really in all this. Still don’t really know what causes this behaviour (cells or charge/discharge circuit in the pack). Ideally, I should do some proper monitoring or maybe even try and simulate a battery running down to see where the mekamons are actually cutting off. Same on charging.
Basically, I just logging this stuff while I remember it
PS pretty certain RR didn’t change the battery between the v1 and v2. The packs just have a different pace plate screwed on (note that I not actually looked inside a v2 battery though). TBH I’d be interested to know if there is ANY difference between the v1 and v2 mekamons actually? It looks like colour/decals and presence or not of the thing on the light. I did notice the rear lights on the v1 flash though but don’t on the v2.