I just wouldnt.
Say you buy a couple and they stop working quite quickly. The money youve spent – gone, and you still need replacements. By the time you’ve bought those, and lets fact it after a bad job you’ll probably buy genuine.
What is it they say about throwing good money after bad.
Buy the genuine, and there wont be any problems.
.
If somethings going to go wrong, if its going to go up in flames while charging, or explode into a fireball burning anyone in proximity, it will always be the cheap replacements that will be the cause. try living with yourself should you harm the wife