Maast
Compulsive Tinkerer
Finally got it done, if it looks like a kludge it's because it is - but it still works, and pretty well at that. It'll charge up a cell, then discharge it to a load and then charge it again and just keep doing that until I interrupt it. Unfortunately my data collection is having to manually write down the amp hours from the meter. I need a much better solution for that.
Three of small relays are to deal with the behavior of the lipo battery alarm I'm using as my low voltage signal and the fourth is to trigger an increment in the counter.
The big power supply is just a 12V megawatt I had laying around the small one is a 60a 3.3V meanwell I bought for this and the cc/cv adjustable power supply is my bench power supply. I've got about $130 into it that I bought specifically for it and most of that is the big 400a normally closed contactor and the meanwell power supply.
Three of small relays are to deal with the behavior of the lipo battery alarm I'm using as my low voltage signal and the fourth is to trigger an increment in the counter.
The big power supply is just a 12V megawatt I had laying around the small one is a 60a 3.3V meanwell I bought for this and the cc/cv adjustable power supply is my bench power supply. I've got about $130 into it that I bought specifically for it and most of that is the big 400a normally closed contactor and the meanwell power supply.