I have a car battery charger with high/ low switch and 4 LED's: 2,4,6,8 amp.etc I did something wrong connecting +ve to -ve or something, not really sure what. I would have expected the fuse to blow but what happens when it is switched on is all of the LED's come on . It is not connected to the battery.
What is it doing? is it kaput or can I rescue it?
Thanks
Brendan.
It would have to be a pretty cheap and nasty one if reverse connection damaged it. They usually have a relay pulled in by battery volts via a diode, so no connection to the bits that would be damaged by reverse polarity if you try it.
the only way to know is to try it
NT
Have something to add? Share your thoughts — no account required.
Ask the community — no account required