[Closed] Do I need to disconnect my car battery when charging it?

Just pull the earth

Why? It doesn't disconnect when the alternator is charging it.

Don't think you need to just as long as the battery isn't dead and you are using a normal charger, not one with a boost function that might push it over 20 volts. That could damage the cars electronics.

You could have a charger from the 60s for all I know. So that's why I said pull it. If it's a modern trickle it'll be ok.

Sorry, yeah, modern multi-mode charger. It is on now. Will see if starting is better in the morning. If so, new battery time. 8 years old...

I'm getting a banner above for euro car parts 50% off everything. Psa

Euro Car Parts banner is [b]up to[/b] 50%. Saved about £10 on a battery yesterday, about 15%.

If so, new battery time. 8 years old...

Change it now before it gets proper cold and lets you down when you least need it!

Change it now before it gets proper cold and lets you down when you [s]least[/s] MOST need it!

[url= http://www.tayna.co.uk/ ]Buy on line[/url]

Much cheaper than Halfrauds.

Euro Car Parts also have a sister site that is cheaper than their main one [url= http://www.carparts4less.co.uk/ ]CarParts4Less[/url]

sharkbait - Member
Change it now before it gets proper cold and lets you down when you [s]least[/s] MOST need it!

There you go Geoff.

😆 I agonised over the wording of my post and almost edited it, and then convinced myself that being let down was actually the main subject of the sentence and so left it at least.

*consults the Guardian style guide 8)

Ahhh - gotcha 😳

*shuffles off muttering about being a bit thick

Plumped for a Varta Silver E44, £67.50 delivered from eBay. Went to order at 4:30pm after checking battery voltage leaving work (12.19V at rest), and price had gone up to £76.50. Bummer.

Nominal voltage is one reading a more useful one is the voltage during cranking.