Can my car battery recharge or a new one???

AdrianC

what7 said:

I had the car from new, I cannot seem to remember changing the battery once, nor can I find any documentation for it.
Is it unreasonable to think I had the battery for 11 yrs , and 75k mile on it.

I'd definitely be viewing this as a likely final straw, then. It'll probably see you fine in regular use through the summer and autumn, but I suspect it'll leave you stuck after the first decent winter night.

ElephantBoy57

If there isn't a reason for the state of your battery, other than lack of use, I would be getting a new one. Has the alternator been checked, you can test that with a multimeter, you can even buy one that plugs into your cigarette lighter for £3/£5

EdGasketTheSecond

I had a battery that went as low as 1.8v when measured. I recharged it and it has been fine since.

Grumpy_chap

It is quite likely, especially after extended non-use, that some power drain in the car took the battery voltage down.  A full recharge and it could very possibly be fine and give you years more service.  All the horror stories are led by the industry trying to sell you stuff.

shaun_from_Africa

Grumpy_chap said:

All the horror stories are led by the industry trying to sell you stuff.

Not all of them.
What I have stated about the battery possibly being damaged is knowledge gained from many decades doing a job that  requires me to carry out regular work on batteries (both lead-acid and nickel cadmium) and this often includes batteries that have become flattened either totally or very close to zero volts. 
Allowing a 12V battery to drop below about 11.5 volts will cause damage to that battery but how much damage is anyone's guess as it depends on many factors including (but not limited to) how long it was at the low voltage state and what sort of recharge was carried out.

NameUnavailable

what7 said:

I had the car from new, I cannot seem to remember changing the battery once, nor can I find any documentation for it.
Is it unreasonable to think I had the battery for 11 yrs , and 75k mile on it.

At that age I would just get a new one. Do you want to be stranded somewhere with a dead battery at precisely the worst time it could happen to you?

A new battery is what, £50-100? Check online sellers, Halfords are usually at the top end price wise.

Elmer_BeFuddled

14.4v is a good reading for a battery in good good condition. As has been stated let it go below 10.5ish v and you'll have no end of issues.
Got a a Europarts local? They usually do discount codes at weekends, or even support your local independent motor factors. 95% of the time they will be (these days) a lot cheaper than halfords

red_eye

You can try to recharge, if it’s a decent battery you might get lucky.
just know that lead acid does not like being deep discharged the plates calcify it’s usually down hill after.
i have revived one battery lasted 6months with a trickle charge every other week. put it in my non runner and forgot about it, it couldn’t hold a charge.

if you recharge don’t fast charge.
charge in the garage not the house, switch off charger before disconnecting the leads.
if your battery starts venting or bulging switch off at the plug and run You don’t want any sparks to ignite the gas. A battery can be an acid and plastic grenade 

_Jem_

That's a good age for a battery mine is going on 13 years its oem, but if it gives me any problems I will just be getting a new one, starts fine in the winter if anything better in the winter. 

AdrianC

Elmer_BeFuddled said:

14.4v is a good reading for a battery in good good condition.

14.4v is charging voltage, with the engine running and the alternator charging the battery. It shouldn't be anywhere NEAR that with the engine off, after sitting for a while to settle.