How To: Overhaul a Car Battery Charger

If you have an older battery charger and it works apart from having worn out terminals or frayed wiring, don't throw it away. Overhaul it with new wires, a plug and clip leads. This costs about $15 at the most instead of the $50 for a new unit.

Category:

Howto & Style

Tags:

• Car
• Battery
• Charger
• repair
• overhaul
• rebuild
• electric
• wiring

[charisk123]

what fuse will it required in this kind of charger? 12v or 120/240v fuse ?

[uxwbill]

@charisk123 A fuse on the primary (AC line) side of the transformer is likely to better protect all of the charger. There isn't a fuse in this unit, but one could easily be added. I didn't think it was terribly necessary.

[meade9166]

@uxwbill 8,7 volts,pretty low

shouldn't it be 12volts or more?

[uxwbill]

@meade9166 This is a charger that can work with six or twelve volt batteries. The lower voltage is used for six volt batteries.

Old cars and tractors use six volt electrical systems, and six volt batteries remain on the market today.

[dollman0]

This is a decent video that explains how to fix an old battery charger by replacing the bad wires. Anyone who does not know much about fixing stuff can learn from others, I learned that in college and I am now a master technician.

All you people who try to degrade the information in this video need to try and make your own video. We will then see that you made mistakes of your own and it is easy to sit back and be a critic judging others.

It is easier to do stuff than to try to teach someone

[uxwbill]

@dollman0 That's very well said. Thank you for watching, commenting and +1. :-)

[0Fluxor0]

Just a suggestion for future mods. The ground pin should be mandatory for any appliance with a metal chassis. The whole purpose is to prevent the user from being shocked in the event of a fault condition. Say one of the connections that you repair inside the unit (or one of the connections you don't repair) comes loose and makes contact with the chassis and you un-knowingly touch the unit. Otherwise very good video.

[MrLeonard55]

It wasn't meant as an insult.

[uxwbill]

@MrLeonard55 I've been accused of worse. You'll have to try harder. :-)

[uxwbill]

@TheSliekaStyle I think there are lots of people who could do this safely if they knew what was required, what to ask for in a store and what the various internal components do. I enjoyed making it, so that's what is really important.