I've been having bad luck with my chargers lately—I've gone through four of them in just a few months! Three of them were quite old, but one was brand new. None of them are lighting up anymore when I try to charge a battery. I try my best not to leave batteries charging overnight, but it sometimes happens. Could it be that the older batteries, which I've really pushed to their limits and may be on their last legs, are damaging the chargers?
3 Answers
If all your chargers are plugged into the same outlet, it might not be the chargers themselves but an issue with the mains power or the specific outlet. Check the connections; it could save you some hassle!
I went through a similar situation, but once I switched to a different outlet, I haven't had any issues since. It might be worth trying to plug them in elsewhere!
I had a charger fail unexpectedly before. If you're feeling brave, there's a fuse inside that you might be able to jumper or replace yourself. You could give it a shot!

That sounds doable! I have a couple of old chargers lying around, so I might just open them up and take a look.