Battery Removal

[Rtwoodstock]

All apologies if this is somewhere already but couldn't find in the search. I am next to useless mechanically (can barely wire a plug) but for some stupid reason thought I could replace my dead battery - I have bought a new battery and removed the connectors at the top of the old one but is held at the bottom - I didn't want to force anything is there another bolt I need to remove - If so, any help in pointing in correct direction is much appreciated.

 

[robwright]

No daft questions here. There is a plate that is securing the bottom of the battery to the tray it sits on. Allen head bolt so you will need a socket set with an extension. There should also be a vent tube disappearing into the bumper area. This is to vent the hydrogen gas that is produced when charging to atmosphere.

 

[blade7]

There's usually a clamp plate on the bottom of the battery. 13mm bolt I think, socket on an extension to remove it.

 

[Riverside]

Assuming your battery is in the left boot pannier there's an Allen bolt towards the front holding the retaining bracket down. Iirc t30 size, you'll need a socket & extension to reach it.

 

[edh]

I think the only way to know for certain what bolt is in there is to use a torch the original one may have long since disappeared..

be warned though - once you've swapped a battery it's a slippery slope... you'll be doing a clutch change by this time next year []

 

[GlennS]

I think the only way to know for certain what bolt is in there is to use a torch the original one may have long since disappeared..

Yup. My 1990 S2 has an allen bolt and my 1989 2.7 has a 13mm "conventional" bolt.

 

[Rtwoodstock]

Many thanks - for all your replies - Will have another look today and hopefully get it going. I stupidly have let it sit for a few months as been away and bought other vehicles - and hadn't remembered that 944s tend to be solid (or at least go wrong at predictable times/mileage) until you let them sit. My throttle cable has also got stuck. All my own fault! Again, many thanks for all help

Robin

 

[jonnyporsche]

Alarm/immobilizers can drain 944 batteries very quickly if left. I suggest disconnecting the terminal that goes to earth (-) or connect a maintaining battery charger.