Red Yeti Posted July 15 Posted July 15 (edited) Attention! I am not an electrician and this is not a repair manual but documents my procedure. The battery in my UTC II died and I could only use it via the USB cable. Which was very annoying. Since I had nothing to lose, I carefully cut open the housing with a Dremel tool without damaging the battery underneath. Then I cut off the two cables from the old battery. I couldn't find a battery of the same type, so I simply ordered a 3.7V 950mAh LiPo from Amazon for 7.99€. https://www.amazon.de/dp/B0F594R2MB?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 I cut off the connector on the new battery and soldered it to the cables from the old battery. Black to black and red to red. The UTC has now been working for three weeks without any problems and can be charged as usual via the USB port. As the new battery is smaller than the original, it has to be recharged after about 8 hours of use. I have printed a shell for the housing and attached it with adhesive tape. So if the battery needs to be replaced again, opening it is no longer such a big effort. As I don't trust the cheap battery or my electronics skills, the whole thing is stored in a metal container when not in use. Perhaps someone here knows more about electronics and batteries than I do and can tell me whether my repair attempt is faulty? Edited July 15 by Red Yeti 1
Aapje Posted July 16 Posted July 16 Nothing wrong with this kind of repair. These battery packs are just generic Chinesium parts that can be replaced with other generic Chinesium parts. Just make sure that the voltage matches. The mAh is the capacity of the battery and that merely determines how long it lasts, but is not a compatibility concern. You only need to make sure that there is no risk of shorts.
Red Yeti Posted July 17 Author Posted July 17 Hi Aapje, thanks for the feedback. That gives me hope that the repair will last a little longer.
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