The key to taking them apart is to understand how they are put together.
Once you split the case and unscrew the bms, you need to cut the strips from the bms pcb.
Then you can pull that apart and get the cells out of the plastic holder. From there, I cut the nickle along the flat side to get 4 cells linked in a p.
Then you just need to plug the nickel from the flat side and then I pull each cell off.
Now you have to clean up the positive terminal because nickle is still attached to it. And then your done!
Hummie and I are going to have some great deals on these batteries within the next few weeks.
The problem with the heat shrink is it prevents Flexibility in one direction.
I wanted to agree with you and I ordered tons of heat shrink for this. But I have to agree with John that the kapton is better than heatshrink.
The key is that every cell is independent from the next. It needs to flex with the deck and not have one cell pull on another. If one cell pulls onto the next, it will put stress on the nickel and the fear is that will lead to failures.
The kapton holds the cells and nickel, as well as the silicon we put between each cell and the pcb. But the heat shrink will pull cells and prevent flex.
We do have a prototype board that will be running in the coming days so we can start testing.
John did sell a few pcb batteries like this before and they are still going as far as we know.
We are aiming for $200 without a bms and $250 with bms.
Weāre debating because we donāt want to sell batteries and have people wire them incorrectly and make a warranty claim. So weāre not 100% sure yet how we will proceed.
But it will be a great deal. One option will likely be a deck, enclosure, battery, bms, metr pro, and official vesc 6ās pre wired. Just add your own drive train, set the settings, and go. Probably somewheres around $1200 in that case.
The issue is with this battery, thereās not enough space for a storm core or even focboxes, and the bms. But there is enough for vesc 6ās and the bms.
Seems like a lot of ground to cover my friend. Offering the battery with bms sounds good, but at the same time an option without the battery sounds good to save a little. Maybe offer a slimmed/reduced warranty with the battery -bms version?? Maybe that and offer an enclosure that fits well with the battery/pcb sizeā¦ other than that most people like to pick their own escs, decks, etc.
Thatās just my view tho, and Iām not your typical buyer.
Never da less gl with the packs!
Maybe that and offer an enclosure that fits well with the battery/pcb sizeā¦ other than that most people like to pick their own escs, decks, etc.