Selling your classic car? It's FREE to list your car on Honest John Classics | No thanks

Should I buy a lead acid or calcium battery?

I have a 1999 Morgan +4. Should I buy a lead acid or a calcium battery? My last battery was a Halfords lead acid and lasted seven years.

Asked on 25 September 2018 by g2gsoon

Answered by Keith Moody
Despite the name, a 'calcium' battery is still a lead acid battery - it just means antimony in the plates of the battery has been replaced by calcium. This means it's more resistant to corrosion but it does require a higher charge voltage than conventional batteries.
Personally, I'm a big fan of keeping it old school and seven years from a non-premium battery on a car that probably covers 5000 miles a year is pretty good.
If you're having battery issues then choose the largest battery that will fit in the car with the highest amount of cold cranking amps. Or get the multimeter out and look for electrical leaks.
Mike Powell, from the Morgan Sports Car Club, added that: 'Some 4/4's have the battery exposed to the elements under the rear floor so maybe a sealed, maintenance free or gel type would be preferable, but they are more expensive than conventional types and may require a special smart charger.'
Similar questions
My diesel engine is a 1990 unit, can I just replace the lead acid battery for a lithium battery
I plan to over winter my old Morris Minor in an underground car park that has no source of electric power or light. What do you suggest I do to preserve the battery so it will start after three or four...
I bought a Unipart Samson lifetime guarantee battery many years ago for my 3.5-litre Rover. I have had a few free replacements since then. I now need another one, but it looks like Unipart went bust in...
Related models
English roadster that's utterly timeless, and there's a four seater version as well (really two plus two children)

Compare classic car insurance quotes and buy online. A friendly service offering access to a range of policies and benefits.

Get a quote