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rtoungate
100
Jun 21, 2017
Adding a few pictures to supplement my comment below. Taking the battery compartment apart does not void the warranty. The online manual downloaded from Yuneec shows you a complete repair/replace component breakdown when you need to replace parts. The ECU keeps beeping to warn of a fault. When I took the battery compartment apart, the plastic wrap around the LiPo batteries is starting to melt. Put my temp probe on it. Anywhere else on the battery, and the temp is 71° F to 74° F (room temp). The area where the plastic is melting is 132° F and rising. The last picture shows the melting, which I read online that this type plastic wrap will start to melt at 165° F. You can also see the solder on the fourth chip is starting to blot.
If you bought one of these, I would highly caution you to keep it close when charging. I felt heat on the outside of the battery compartment. LiPo batteries should only be warm when they are being used/discharged. Not when charging. If it's warm on the outside of the battery compartment, that means it's very hot on the inside. It's easy to remove the battery compartment. I would check to see if there is any melting.
Waiting to hear from Massdrop if they'll replace, or if I'll have to file with Yuneec.
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