New Battery

[abby030976]

Shall I buy

http://www.eurocarparts.com/ecp/c/Porsche_911_3.8_...

or this

http://www.eurocarparts.com/ecp/c/Porsche_911_3.8_...

ECP say both are suitable.

[Trev450]

What car is it for and what is the amps per hour rating of your current battery?

[abby030976]

Sorry. 997.1.

[Trev450]

In that case the first one should be fine.

The only exception to this is if the car has a large number of options fitted, in which case you may need the second higher a/ph one to compensate for the additional load. The a/ph rating on your current battery should clarify this though.

Edited by Trev450 on Thursday 7th August 13:31

[abby030976]

Phone module, heated seats, psm, rear wiper, BOSE, etc etc.

OPC are saying not to buy one that is too powerful as it could burn out the alternator.

[abby030976]

Ive gone for the bigger one - £90 via ECP on Ebay (cheaper than ECP website!).