If you are going to make more of these please make a little jig for the batteries. Complete a pack, take it out of the casing and then make 2 little plates of mdf that exactly fit the bottom of the battery pack and fix them in place on a baseplate. Next time just put the cells one at a time in the jig and fix them together. When completed, pick it up and simply lower it in it's casing. A lot easier for testing and also a lot safer.
That's what I was saying a little bit further on, the BMS protects against any short circuit by cutting the output, and you 'unlock' the cut-out by putting it on the charger for a few seconds. Really I should have not let these touch at all and not rely on the BMS protection, but I guess I got lazy.
It's a Ni-cad charger, not NiMH. The BMS takes care of charging the Li-Ion cells. It analyses the input voltage and current and gives protection to the cells and charges them the way they need.
@@TheFlyingKiwiNZ I assumed that, but am not sure the BMS is reliable Further, I believe that a lack of constant voltage charging phase can affect SOC of batteries.
@@navigator_071 yes maybe it's possible, however the first battery I converted over a year ago and it's still working fine. I wanted to test it thoroughly before doing the second battery with a video.
If you are going to make more of these please make a little jig for the batteries.
Complete a pack, take it out of the casing and then make 2 little plates of mdf that exactly fit the bottom of the battery pack and fix them in place on a baseplate.
Next time just put the cells one at a time in the jig and fix them together. When completed, pick it up and simply lower it in it's casing. A lot easier for testing and also a lot safer.
Great idea! I only have these two to do though
Usa o mesmo carregador?
What do you use for a charger? Does the old NiCd charger charge the modified battery pack?
I just use the old NiCd charger, however, some people have said it doesn't do balanced charging even with that BMS, I need to look into that.
No, Lithium ion is unsafe to charge on Nicad charger!
On a different video, the guy purchased a wall charger for lithium, took the guts out, remove the guts from the old charger and swap them.
I'd use the hardware to convert them to work with your main toolset brand of batteries.
How come that didnt short out when the main +/- where touching 21.49 in on the video??
That's what I was saying a little bit further on, the BMS protects against any short circuit by cutting the output, and you 'unlock' the cut-out by putting it on the charger for a few seconds. Really I should have not let these touch at all and not rely on the BMS protection, but I guess I got lazy.
What about charger, the NiMH charger has no CC-CV intended for li-ion ?
It's a Ni-cad charger, not NiMH. The BMS takes care of charging the Li-Ion cells. It analyses the input voltage and current and gives protection to the cells and charges them the way they need.
@@TheFlyingKiwiNZ I assumed that, but am not sure the BMS is reliable Further, I believe that a lack of constant voltage charging phase can affect SOC of batteries.
@@navigator_071 yes maybe it's possible, however the first battery I converted over a year ago and it's still working fine. I wanted to test it thoroughly before doing the second battery with a video.
@@TheFlyingKiwiNZ nicad and nimh use the same charger. The BMS only balances the charge,you still need a constant voltage and current for lithium ion.
Wouldn't it be easier to change bottom of drill to accept new battery instead
like an adapter to accept say a Makita battery? Possibly!
If you had measured the voltage of each of the cells in the old battery, you might have found only one was dead and saved a heap of money,I did.
They were all useless leaky NICAD cells. Once they get that old, not worth mucking around with them.