BigBrosMo
New Member
- Joined
- Feb 6, 2021
- Messages
- 93
Hi All. I hope this doesn't anger too many people with its lack of refinement or accurate measurement. And maybe I might be better off to ignore compression altogether, but here I am!
I have an 8s configuration of EVE LF280K batteries in a 2x4 configuration. Ie. 4 rows of 2 batts. This fits nicely in the battery box I made. I "showed it off" and got lots of input on compression. Both from the "don't worry about it" and the "but you HAVE to" camps. The overall takeaway was "some compression is better than none but too much is worse." Ok cool.
So I've sandwiched my batts between two plastic cutting boards and added 6 stainless steel M4 threaded rods. 2 on each end, and 2 through the middle. (I used lengths of wire sheath to insulate the rods)
I don't have room for springs in the box I made and since I am on an island in Thailand, remaking it, or getting properly gauged springs isn't the easiest effort. So I am left to guesstimating.
Anyone who's compressed their bank to 12psi with some accuracy.... How tight is at 50% soc? Like should I tighten each of the 6 rods finger snug, finger tight as hard as I can, finger tight plus a couple turns of the wrench? Basically is there any sort of guideline I can use from your experience, or should I really just say forget about compression altogether if I can't be accurate?
I have an 8s configuration of EVE LF280K batteries in a 2x4 configuration. Ie. 4 rows of 2 batts. This fits nicely in the battery box I made. I "showed it off" and got lots of input on compression. Both from the "don't worry about it" and the "but you HAVE to" camps. The overall takeaway was "some compression is better than none but too much is worse." Ok cool.
So I've sandwiched my batts between two plastic cutting boards and added 6 stainless steel M4 threaded rods. 2 on each end, and 2 through the middle. (I used lengths of wire sheath to insulate the rods)
I don't have room for springs in the box I made and since I am on an island in Thailand, remaking it, or getting properly gauged springs isn't the easiest effort. So I am left to guesstimating.
Anyone who's compressed their bank to 12psi with some accuracy.... How tight is at 50% soc? Like should I tighten each of the 6 rods finger snug, finger tight as hard as I can, finger tight plus a couple turns of the wrench? Basically is there any sort of guideline I can use from your experience, or should I really just say forget about compression altogether if I can't be accurate?