Originally Posted by ericmorin
I have a 3Ah sealed lead-acid battery that I just got and I'm trying to charge it and ran into a problem.. and trying to not burn the house down.
Reading the posts and stuff on the internet, everyone says I can just use some standard 12V 500ma power source plugged into the battery and it will charge up.
So I had a 12V 500ma AC/DC adpter that I plugged into the battery. and it was blowing the in-line fuses I put into the battery connection constantly..
So I tried it directly and the cord from the DC adapter got really hot and of course started to smoke the adapter. so it fried it.. meaning the amps going into the battery were WAY higher than what the adapter was allowing. Don't want to go down that route and burn anything up.
I'm not sure the issue was the 500ma you were putting into it. That shouldn't blow a fuse. I think you had a short, perhaps.
Go to Batteries Plus (or some similar battery store) and ask for the right charger for the job. Have them also test your battery to see if it's still good.