Battery charging question.

Post by **rguzz** » 26 Mar 2020, 15:16

Silly question, does anyone see a problem using the bolt holding the blue cable in front of the battery as a chassis ground while charging the battery? It will function as my negative battery terminal, in other words.

Post by **jreed** » 26 Mar 2020, 15:51

That sounds like a good place to clip on. It should be a good ground point.

Post by **misha** » 26 Mar 2020, 16:05

Why avoiding the battery terminal?

Post by **jreed** » 26 Mar 2020, 16:14

Some say to connect the ground wire to the body as the second connection to avoid creating a spark right at the battery, which could have hydrogen gas near it.

Post by **misha** » 26 Mar 2020, 16:27

That's only in case if you need to jump start the car.
It's recommended....not necessary.

Post by **rguzz** » 26 Mar 2020, 17:12

I'm actually trickle charging. Somehow, I feel more comfortable not using both battery posts for that purpose, but can't say about the science behind that thinking. BTW, okay to trickle charge leaving both battery cables connected, charger clip to the positive battery post, negative to the bolt on the chassis? Should be, right?

Post by **misha** » 26 Mar 2020, 17:30

If you're charging the battery in the car with terminals connected....you need to remove the cell's caps on top of the battery.
When you finished with charging,allow battery to cool down for about 2 hours,replace the caps and you're done.

You can connect the charger directly on terminals,but make sure that you turn on and turn off the charger from power supply
BEFORE you connect and disconnect the charger clamps.

You can also do the charging in your way too.

teyloradam · Post by **teyloradam** » 11 Apr 2020, 14:32

The car's fuse for that plug is 12A. I have a DC-DC step-up (12v to 19V) with a max output of 6A which is needed because my solar charger requires at least 18V before it will start charging, so using the step-up will "trick" the charger into thinking a solar panel is attached.

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