Yihi SX350J Chip Autofire to Death problem

[jhelliwell]

I just came across this YouTube video, and it scares the living hell out of me



Thoughts?

 

[beckdg]

To be expected.

Electronics fail.

Fact of life.

Always remove batteries when not in use.

Never charge usb through pc unless no other choice.
Even Provarii fail. Sorry fanbois.

Tapatyped

 

[Mike 586]

When he tested it, he used a 1.4 ohm load and it was getting battery voltage, it would have produced less than a 6A load on a point intended to handle up to 30A. The thing is that almost as soon as the load was applied, the joint started smoking and melting solder while carrying less than one fifth the maximum it should be capable of handling without issue. If that's not a bad joint, I don't know what is.

As far as I know YiHi ships them with the leads already soldered on and if that's the case its most definitely a YiHi issue. Just a bad solder joint, the heat it generated likely fused the mosfet that fires it in bypass mode shut, hence the constant battery voltage.

 

[beckdg]

When he tested it, he used a 1.4 ohm load and it was getting battery voltage, it would have produced less than a 6A load on a point intended to handle up to 30A. The thing is that almost as soon as the load was applied, the joint started smoking and melting solder while carrying less than one fifth the maximum it should be capable of handling without issue. If that's not a bad joint, I don't know what is.

As far as I know YiHi ships them with the leads already soldered on and if that's the case its most definitely a YiHi issue. Just a bad solder joint, the heat it generated likely fused the mosfet that fires it in bypass mode shut, hence the constant battery voltage.

Good eye.

Tapatyped