Yikes, I went with the 25mm originally and within a minute of receiving them and testing, had ordered 16mm. Those work much better, I didn't realize how shallow the terminals were. 16mm doesn't look out of place and can accommodate bus bars twice as thick as the ones we receive with the cells + two connections on main positive and negative. And still have thread to spare. 25mm leaves a lot.
Thanks for the timestamp. I'd tape my cells with VHB too, but the bulging of one of my cells makes that feel like a bad idea, the gap would require doubling up tape (possibly more) and I wouldn't want to apply tape to the bulged area as that could stretch the bus bar distance too far.
Jealous you have yours in parallel, I tried to request more bus bars from the seller but they didn't understand what I was saying. While my RC balance charger had no trouble completing a slow balance on the pack without much throttling (i.e. didn't drop to 2 amps charge for 4 hours trying to juggle the high cell) they did come to rest at a 40mv difference after hitting 3.6v together. Once I get the BMS set up I'll do my discharge and charge back up to 13.8 - which will be the highest I go. Willing to bet I won't have that significant of a difference staying between the shoulders, but I'll always have wondered if paralleling them would have made them perfect.
