Xiaomi M365 / Pro additional battery case

thingiverse

This is the battery holder for additional battery for Xiaomi M365 scooter. It's designed for 12,8AH battery - I've bought mine for 98EUR + 15EUR for the charger (not needed to charge the battery as original charger works). <img src="https://cdn.thingiverse.com/assets/8a/03/a0/a7/9f/AERDU-36V-10S4P-12-8Ah-For-LGEBMH11865-13ah-12ah-with-25A-BMS-42V-lithium-battery-pack.jpg"/> Battery: https://www.aliexpress.com/item/32954998465.html The connection is done with Y connector (made myself): https://medium.com/@andriiliakh/installing-additional-battery-on-xiaomi-mijia-m365-a8782f3b75b0 You will need also 6 pcs. M5x60 screws with nuts and 3 pcs M3x10 screws with nuts. Thanks to <a href="https://www.thingiverse.com/Saur0n">Saur0n</a> for the <a href="https://www.thingiverse.com/thing:3798199">design</a> inspiration. <b><font color="red">Warning!</font></b> Before connecting two batteries together, make sure they are at the same voltage level (as the internet told me, not more than +- 0,5V), or just charge them fully (old battery might have lower voltage, so don't charge the new battery too much). After connecting them together, charge them both with original charger over the m365 charge socket (it's not perfect - but this will work and this is safer than charging with two chargers (another charger might override the original BMS and break your battery I guess)).