Do this… you’ve got 8 columns of 1s8p and 2 rows of 1s8p at the bottom… switch the columns of 1S8P 1 row so that a Neg terminal series group is on the far left. Your essentially just shifting the columns 1 to the left so its NPNPNPNPNP
Now,
Negative battery lead from bottom right of the lowest row in bottom right corner of pack,
12 awg series jumper from the left side of the positive row to the far left column (which is now negative after you switched it). That keeps the jumper short.
now your positive battery lead comes out the bottom right corner right next to the negative off the far right column
Quick question to those familiar with BMSs; how do you go about testing that the balancing works as expected? Do you purposely unbalance the pack by slightly draining a cellgroup by 0.1V and then check that the pack is re-balanced once the charge has finished?
Just stick a volt meter on the balance Leeds befor and after charging ones in a blue moon EAXTRA CARE DONT SHORT ANY THING WITH PROBES you will know if you were not carful enough.
Interesting video. Me thinks that the usual chart we see is far too conservative. I would personally feel very comfortable going 2-2.5x the ratings we see on the chart below.
So fist time I built a battery with the cells end to end. Series connections useing ringed 14mm by 1.5mm tinned copper braid. the intention was not to make a flexible pack but to eliminate any possible strain on the Nickle and create the lowest resistance connection possible this ended up been the equivalent/better than dule AWG8. Total overkill but with very little space lost aprox 5mm between cells. I had intended to run the balance Leeds to the solder in between the cells but after applying the fish paper Over the series connections it was no longer possible to get the soldering iron between the groups so I had to crudely attach them to the sides were I was trying to avoid any solder been.
My advise for any one going down a similar line is to add Nickle balance tabs like normal neat battery’s
I’m assembling my first battery pack, and I really REALLY don’t want to mess it up. Its a 10s4p with Samsung Q30, DieBieMS and made out of the NESE 4p modules. I’m confused about the balance wires where to insert them both battery side and on the DieBieMS (C1-CX and GND) Here is a picture of the pack and I also added the picture of the balance lead plug on the DieBieMS.
Would like confirmation if my series configuration is 100% correct I marked that in blue on the picture. (I am very anxious about blowing this up)
Also would like to know how to configure the DieBieMS software.
