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#16661
Hi,

I have a XIAOMI M187 and I was wondering if I could use the external battery of my NINEBOT ES4 (the controller has burned) on it.
My idea was to recover the cells of the external battery, and weld them together in parallel of the cells into the deck.

What do you think?

Thank you
#16733
James007 wrote:
Wed Oct 23, 2019 11:43 am
Bad idea. You can buy a new bms for it on aliexpress.
https://www.aliexpress.com/item/4000112729173.html
I just want to recover the cells of NINEBOT ES4 external battery (not the BMS) to adding them at the originale battery of my XIAOMI M187. Just to increase the battery capacity.

Battery M365 is the same than the M187, but with more cells. So I want to "transform" my M187 battery into a M365 battery.
#16740
EddieR wrote:
Thu Oct 24, 2019 5:17 am
James007 wrote:
Wed Oct 23, 2019 11:43 am
Bad idea. You can buy a new bms for it on aliexpress.
https://www.aliexpress.com/item/4000112729173.html
I just want to recover the cells of NINEBOT ES4 external battery (not the BMS) to adding them at the originale battery of my XIAOMI M187. Just to increase the battery capacity.

Battery M365 is the same than the M187, but with more cells. So I want to "transform" my M187 battery into a M365 battery.
Yes, you can do it, people have done it. its risky. Just watch the youtube video where they added extra battery to the small m187 battery.
#16773
James007 wrote:
Thu Oct 24, 2019 12:24 pm
EddieR wrote:
Thu Oct 24, 2019 5:17 am
James007 wrote:
Wed Oct 23, 2019 11:43 am
Bad idea. You can buy a new bms for it on aliexpress.
https://www.aliexpress.com/item/4000112729173.html
I just want to recover the cells of NINEBOT ES4 external battery (not the BMS) to adding them at the originale battery of my XIAOMI M187. Just to increase the battery capacity.

Battery M365 is the same than the M187, but with more cells. So I want to "transform" my M187 battery into a M365 battery.
Yes, you can do it, people have done it. its risky. Just watch the youtube video where they added extra battery to the small m187 battery.
But I dont want add an external battery like everyone does it.
Image

I’m pretty sure that the BMS between the M187 and M365 battery is identical.
There is 30 cells in the M365 battery and 20 in the M187. So, technically, I can add 10 cells to my M187 battery by copying the assembly model of the M365 battery...

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