Hello i have a pretty old Dell inspiron 1525 that i finally got back to working condition and plan to use it for simple stuff since its pretty slow. it has a ground loop problem though and its very annoying. i have 2 chargers one from the dell, its the original charger then one from a compaq, they have the same ratings and such but dell laptop have that annoying protection circuit to it only charges with "correct chargers" so even though these to are identical it wont work. that would be fine but the charger that does work has a ground loop problem so when its plugged in my tv, sound system, and laptop speakers all fuzzz, and the touch pad on the laptop doesnt work half the time. so 2 questions i guess. is there a way to fix the ground loop problem or a way to make the battery charge without the original charger, i can use the laptop with my other charger but the battery wont charge.

Thanks for any help.