in the event of the application of pressure of any kind to the balance leads, they will squish together and short without something else between them.
eventually you will.
wait… wut… you only spent $200 on that… even if it was built in five minutes with silly putty and masking tape how the fuck do you get a $200 price tag on there with that many cells?
I mean that’s $3.33 per cell and a free BMS lol, just gotta put in the time to make them useable again
Yeah, and it would have only taken a couple of minutes to do it right. I’ll resolder it, maybe with some copper braid.
$198 shipped. It sat on the used parts section for a little while too
oh its used. now it makes more sense.
if you have a thermistor (temp sensor) on your battery, I would place it right there
It’ll heat up there first and if you have one of them fancy bluetooth bms’s you can really keep an eye on that undersized conductor.
I’ve been thinking about a neptune 15, maybe now’s the time. But that kinda feels like treating the symptoms instead of fixing the problem lol
that would be like putting a silk hat on a pig 
… and you would probably loose it if the pack poofs.
@thisguyhere has smart bms’s that have temp sensors. Highly recommended seller if you go that route
Was meant for pictures thread but some fucktard got it locked. Making an external balance connector for a trampa
Where do you guys position thermal sensors in a battery, my bms has 2 so could you provide me with some tips?
One on the bms and one on the side of some cells (:
Would you glue one sensor to the heatsinks of the BMS and the other on top of any p group? Or is there an optimal place on the pack to glue it to?
should be unlocked by now.
The hottest point in the pack is the best place. This would be the innermost cell or the one surrounded by the most cells. Tape the sensor down firmly, directly against the midpoint of the side of the cell. If you are measuring temp through tape or fish paper your readings will be low.
Same for the BMS, firmly tape the sensor down on the hottest point.
Since I will be using bms only for charging, discharge will bypass it, is there a need for measuring it’s temperature?
I don’t know. It depends on how hot the BMS gets. 
Some BMS’s can get quite hot if they are doing a lot of balancing and they weren’t designed to get rid of the heat or the BMS was designed to be out in the open and not under layers of shrink wrap.
guys,
I am going to build a 12s10P 30Q pack for my flux.
what amp charger would you recommend for something that big?
the chargers i have are 2amp, and i have no issue with leaving it plugged in all night. never in a hurry.
but does such a large pack need a higher amp charger to charge well?
also if i do get say an 8 amp charger,
cam this little 2.1mm port handle it?
https://smile.amazon.com/gp/product/B06XRT5C2Q/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
I mean you can charge a 30Q at 4A per cell if you are really in a hurry so theoretically you can dump 40A into the battery…get whatever charger you want lol
but what is ideal to get if i am not in a hurry.
that is really what i am wondering
