Be VERY VERY CAREFUL, LIPO will catch fire quicker than gun powder. It is not the typical short circuit spark, it catches fire fast. IF attempting to do this for the first time, do so on a open space, fire extinguisher nearby and someone as safety observer just in case.
Good video dude. I've been saving bad 2/3/4/6s packs forever and making new packs the same way. Care and paying very close attention is key and making sure the "mah" is the same is a MUST. Anyone can do this ! It will save You money and of course You can make custom packs too. Great of You to make a video showing this.
Thanks, and yes you need to be careful when soldering, it help if you put a pice of insulation tape on other contact than the one you solder, than cover that and solder other... And also is good that the C rate of cell is the same because of internal resistance of cell, but as you say mAh is the most inportant, otherwise balancer in charger got lot of work everytime...
I'm trying to fix a HRB 5000mah 22.2 pak. The positive connection seems like it is crimped connection instead of solder. Seems impossible to get apart. And if I do get it apart how can i get the new cell connection?
It is crimped, because out of cell come aluminium contact wich can't be soldered, so it's crimped to a piece of cooper strip wich can be soldered, cut the cooper piece so you can solder on it and leave the crimped part with the battery cell.
if you had one more cell from another battery at the same mah same c-rating could you make a 4 cell and solder on a balance lead, for a new four cell battery or is it not safe to add them together? i guess it would be combining two dead 3 cell batteries into one good 4 cell, instead of just removing
quad55555 i do that few times without any problem, just be sure that they'r booth same C rating and same cappacity, i recomended to do that only with identical cells, eaven that can got different interior resistance...
oi mate. i have a problem like you. 1 cell is bad, i want to remove it, but.... its a big 6s 20,000mah lipo, and 5 of the cells are at 4v. meaning full of energy, ihave removed the plastic, but too scare to cut or solder the terminals.
Alans Snack ok, than just remove one dead cell ;-) plastic take off really slow and carwfully, mm by mm so you don't cut some cell or they will be dead also. For soldering you can help with electric tape, so you insulate all other contact from the one you solder, than tape unsolder one and untape second one and so on... If you don't got experiance with soldering please gove it some friend who know to work that, if you make a short cut with a soldering iron, there can be a big booooom, specialy at the big battery as you got, and also soldering iron can be demaged.
@@DKF22 and why would i want to discharge each cell? to make it slightly safer upon trying to repair it? seems not worth it to me. besides, those big lipos are long gone now. waste of money.
why do you think, first one on negative side is black then just go one by one, second wire is on 4,2V third on 8,4 and so on, there is always one wire more than the number of cell.
@@wavestherules558 just be careful so you don't make shortcut, when you solder one contact please insulate other with insulation tape. If you make shortcut ther will be big buuum and preatty sure your solder will die.
Jason Brown ah that's not a big thing, i really like soldering, but hey man thanks for that comment. Comments like yours give me power to make more videos ;-)
+tintek33 cool that's fine with me make as many as u want. I need to do this for 3 of my lipo batteries all 3s but I'm not sure if I am completely comfortable with knowing what is + and - and I don't want to blow my face off.😥 I'm going to do it soon
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