Power2Spare has large, brushless fans for keeping the Opus BT-C3100s cool while you are processing cells. They cut the cycle time down vs the stock fans and work even better on the 1,000 mAh setting. The mod is simple, but I did have issues. Also shows test results.
I walk through my cell processing process to sort cells into groups and answer a question about lead-acid vs 18650s.
HAPPY NEW YEAR! Kicking off a new year and a new project, but this one is not lighting related. Don’t worry though, I have plenty to do with the display this year and will work on those at the same time.
Powerwall info page (helpful links): https://bit.ly/2QiAKDi