2003 C Class coupe charging question

[Silver CL55]

Car is up for sale due to being replaced, I've got the starter battery under trickle charge from a Lidel "C-Tek" type charger so no issues there.

Issue is I've had it sitting for nearly 3 months like this, or will have by the time I re-advertise it in January.

Do I need to do anything with the big battery in the boot?

Thanks, Colin.

 

[Paparazi]

Yes charge

Yes....as this battery 'stands alone' whilst it's not running.....swap the CTEK over to that battery for a few days every 4 - 6 weeks or so.

Batteries do not like being left inactive for long periods especially when the whether starts freezing.

Martin

 

[Silver CL55]

Update, I can only find one battery!

Thats the one under the bonnet, I could have sworn there were two!

Car is an 03 W203 coupe.

Am I going completely mad?

C.

 

[nrg220]

Car is up for sale due to being replaced, I've got the starter battery under trickle charge from a Lidel "C-Tek" type charger so no issues there.

Issue is I've had it sitting for nearly 3 months like this, or will have by the time I re-advertise it in January.

Do I need to do anything with the big battery in the boot?

Thanks, Colin.

Why do some cars have the two batteries? Under the bonnet and in the boot?

 

[V12]

Thats the one under the bonnet, I could have sworn there were two!

Car is an 03 W203 coupe.

Am I going completely mad?

C.

Only 1 on your car.