Yes. There will be some small amount of self-discharge, but it’s usually something like <0.5%/year under normal conditions.
Somewhere around the 30-50% state of charge range. ~3.3-3.7v/cell should do it.
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Thanks. I will take it out at 35v then. Right in between. Thanks! 
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Leave it on the charger for as long as you can bear and then go ride it and drain the pack.
Charge again and see whats up.
Thats what i’d do
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You could either put them on a flexible PCB on top of a regular 12S layout/PCB Kit battery or build them into the PCB kit itself.
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Yep I will do that 
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That’s a brilliant idea for the wiring but the sensors need to be mounted firmly against the side of a cell. Being mounted on the top contact or the PCB will prevent them from reading the cell temps.
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I guess you could weld pgroups, wrap then use a knife to cut a hole. Then the flexible PCB is pressed into the hole in the tape then glued or secured with something to add pressure and tape.
I would think that the negative nickel tab on the PCB kits would be not too thermally decoupled. Although I am not sure how temp sensor could be added there exactly or possibly another layer on the PCB needed for the wiring. I like the extra flexible PCB idea more than making a more expensive large PCB.
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I think the difference would surprise us. 
IMO it would be a lot as the thermal coupling is only via tiny spot welds and incidental contact and the thermal resistance along a tab is large. But with some decent testing we could probably come up with an offset to apply to any temp readings done there to compensate for the temp drop across the tab and welds.
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What if each temp sensor were bluetooth. All I need to do is tear apart this oven thermometer and place the sensors throughout the battery.
If I could stop my cells at med rare and have an alarm that went to my phone I could keep the battery from getting well done. I was thinking of sticking two temp forks in it. Im not sayin yo go buy the 140.00 wireless cooking thermometer but maybe this tech could be used somehow
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I have considered bt wireless Pgroup communication, just a ton of cost and complexity for what is otherwise elegant in comparison 13 wires. An idea I thought was cooler was to just put a vibrant LED indicator that lights up the entire battery (imagine 12 separate battery cases under a board) This light would communicate at a glance that all Pgroups are equal because they would all be the same color, doubling as sick decoration. Some way to turn on all the lights at once I am not sure about but maybe motion activated would work. oh not motion actually just from current draw.
When a group is reaching overtemp or low charge the lights alert you.
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Like having a lipo alarm on each p group and having each alarm control a rgbw led.
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well yeah I guess it would make more sense to have less than 12 separate more like 6x 2S packs with dual light indicators.
I have not found anything really bad about the idea yet so I may keep pushing it along. I like the idea of lots of small durable battery packs because they could be reconfigured for endless uses from just a phone power bank to a huge esk8.
hmm about the charging part. If you put large enough LEDs they could be used for balancing possibly.
This is battery case.
When i make e battery wath ist the maximum cells withe 21700 ?
70PCS or more ?
i want Build without the Case.
THX
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Probably 69 jk lol
Try drawing it in 3d. There is like a pack size generator thing somewhere.
Looks like you might be going for a unconventional for use layout but not sure.
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How dare you.
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Working on a battery project and the bms does not have a P- port.
On the BMS label, it says “discharge and charge: same”.
So does the discharge wire go to c-? (Not bypassing)
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Yes.
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How dare you.
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Trust me, I wish. It is for a moped and the esc is a Chinese POS that probably has no clue that it needs to cut out at low voltage.
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