The trigger has a deliberate defect where it has the least possible amount of material right at the weakest most leveraged part.

It's a cheap part to replace. It also means a complete disassembly! A lot of it isn't hard but there are some wires that have to snake around, and popping out certain things requires some scary use of force. It took like 3 hours to do for mine.

Also these things don't seem to be great at battery maintenance. I forget how long that took me but it didn't leave any scars, I think it was easy. Just, more expensive. Less so now that batteries are cheaper. But I have my suspicion that their float charge mode is maybe not good & injured batteries. I specifically avoided that but still had issues.

The trigger really made me mad when I finally dug it out of mine. It was such a blatantly obviously designed-to-fail system. It really makes me super distrust this company.