no shorts 
I lubed up mine on accident itās so smooth now
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Ok maybe I jus need another cheap one. Or two for reliability.
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just donāt buy a plastic one for gawds-sakeā¦ buy a tape measure insteadā¦
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you had me at GIF #1ā¦ and then I saw Gran Torinoā¦ yesā¦ much betterer
When you bump up that low cell from 3.99v to 4.02 like the rest of them and the BMS starts balancing 
I thinkā¦
Hopefully the smart BMS can handle larger voltage differences when beginning/finishing balancing.
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Braid when done right Iām sure is sound. This pack only had it on half the series connections. So whatās the point?
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Welds on the positive terminals are all coming off clean.
On the neg sides though. Itās tearing apart and not coming off.
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Yep, i used the braided wire for my series connections. I didnāt do any crazy stress test with it but i did pull really hard on my test solder on some scratched up nickel. No problems.
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three hunthers of a voltā¦ are you fukking kidding meā¦ now weāre all buying NAsa SPEC bmsā
ever heard of GIGO orā¦ just eskate???
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I really should double my battery size so fast charging up to 4V will give me more than like 10 mile range.
weld look weak on positivesā¦ prolly better welds on negativeā¦ maybe ventsā¦ for some random reasonā¦ have you done a cell voltage test, or is this one just dUUne?
I didnāt write it down but the I think P groups were all 4.05v except 1 which was 3.9x Cells might all be salvageable.
I got this far. Positive sides no nickel. Covered up again.
Negative still more work to do.
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There was questions about good 12s balance chargers.
This with a jumper internally and my own just connection ( was 2 separate 6s before) kicks ass at charging. Itās only limited by the 300 watt ac/DC switching power supply inside but has dc 12 volt banana plugs if you have a meanwell or some other power supply. Works also as a non balance charger. Gives live cell by cell readouts and mAh in . And has discharge
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Question for ya guys. Iām going to build a new pack using the @DerelictRobot 12s4p pcb kit. Samsung 30q are out of stock. Any recommendations for an alternative ? I was looking at the Molicel P26a cells. I read some had bad experiences with those but they were not A grade cells. Planning on buying from BulkBattery. Thanks !
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Vtc cells maybe?
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I am designing some plastic ring spacers to hold 21700 cells. Battery pack will be in a hex configuration with 1mm of spacer between each cell. Fishpaper has suggested to be used to isolate P-groups. Would I need fishpaper if I am using spacers or is fishpaper only for touching cells?
Looks like they have VTC4 ās which are 2100mah / 30a vs the P26a which are 2600mah / 35a.
Oh I thought they have VTV5aā¦go for the Molicel I guess then
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