How do I tell the age of my car battery?

[LeoSayer]

It's a Varta with these codes stamped on top.... G4B5922120743 510126 29B

Is it G4 for July 2004?

Or 5101 for 51st week of 2001?

Or something else?

[sday12]

This is the closest I can find

http://www.powercontinuity.net/powercontinuity_net...

[Mr2Mike]

Does it have a coloured dot on the side?

[LeoSayer]

No coloured dot unfortunately. Thanks for the pdf but no real match.

I know it's at least 5 years old. It's currently out of the car and on the trickle charger as I accidently discharged it yesterday.

Just wondering if it's worth persevering with it.

[Mr Pies]

Chainsaw it in half and count the rings?

[TheEnd]

Mr Pies said:

Chainsaw it in half and count the rings?

Don't be stupid, that's for onions.

[Mr Pies]

TheEnd said:

Mr Pies said:

Chainsaw it in half and count the rings?

Don't be stupid, that's for onions.

[WhoseGeneration]

LeoSayer said:

No coloured dot unfortunately. Thanks for the pdf but no real match.

I know it's at least 5 years old. It's currently out of the car and on the trickle charger as I accidently discharged it yesterday.

Just wondering if it's worth persevering with it.

From my experience, yes, persevere, I'm finding batteries can last for ten years nowadays.
Is it no maintenance or low maintenance?, low maintenance will have removable cell caps, so, if so, worth checking electrolyte levels and adding battery (distilled or deionised) water if necessary.
Only top up with battery disconnected from the charger.

[Jimmyarm]

Just buy another one.

Tradeprice on 063 battery's is hitting £15 a pop

[bimsb6]

My leon is 11 years old and appears to have the original battery fitted.

[TaffRichie]

You cant jude a battery by its age. Condition is dependent on duty cycle.

Voltage is key, a battery sould give you 10v when its starting the car, if it drops below its in poor condition. But because a battery is basically a chemical reaction temperature does effect results, so may be 9.5v in very cold weather.

[LuS1fer]

Hey Jude, don't make it bad.

Just ask it quietly and listen intently.