New Battery Needed

[BlueNGT]

Is there a difference between the quality of battery between the likes of Bosch, Exide or any other brand?

Also is it a 36 Amp needed for an RS?

 

[carreraboy]

36 Ah correct ..... Halfords

 

[RSGulp]

I've always bought the Bosch Silver battery for my 911's. Eurocarparts do a good price...

http://www.eurocarparts.com/ecommerce/Search_Results.asp

**Although it is listed here as 45Ah - does that mean it has more 'juice' for cranking the engine after longish periods left standing?

Des, I guess the RS only needs 36Ah because of the lighter flywheel?

 

[Melv]

Go for the most amp hours you can. The Bosch Silver seem to be a favourite.

 

[Tony]

I'm with Des on this - definitely Halfords - 3 year warranty which they honour - but do keep the receipt!.
Seems to be an HB 063 whatever amperage that might be.

Tony

 

[BlueNGT]

ORIGINAL: Tony

I'm with Des on this - definitely Halfords - 3 year warranty which they honour - but do keep the receipt!.
Seems to be an HB 063 whatever amperage that might be.

Tony

I was going to go to Halfords but a friend has put one of theirs in his RS and he reports it doesnt idle as well as it did.

I've emailed a friend at Porsche with the correct RS (999 611 036 20) part number to see what the cost might be from them. Also Costco sell Bosch and have a guy phoning Bosch technical for me to find out about the 36 Amp/hr availability.

Is it dangerous to put a higher amp/hour battery in the car?

What minimum cranking amp is needed?

 

[jr2015]

Installing a more powerful (higher AH value ) battery is not dangerous provided it`s 12 volt, and it will crank over the engine better in really cold weather, but physical size usually increases and it may not fit the available space. The RS models have much less electrical equipment than the standard models so a smaller AH battery is acceptable and probably weighs less which is why all the elecrtical stuff was chucked out in the first place (weightsaving)
jr.

 

[BlueNGT]

ORIGINAL: jr

Installing a more powerful (higher AH value ) battery is not dangerous provided it`s 12 volt, and it will crank over the engine better in really cold weather, but physical size usually increases and it may not fit the available space. The RS models have much less electrical equipment than the standard models so a smaller AH battery is acceptable and probably weighs less which is why all the elecrtical stuff was chucked out in the first place (weightsaving)
jr.

There was a Bosch 45 amp/hr, with 420 CCA in Costco. Same dimensions as the one in the car now, so that is better?

 

[ericsi]

had the same problem recently and bought halfords 64 ah (i think), it just fits. 64 gbp. Bigger = better (in this case at least)...[]

 

[Melv]

The Ah (Amp hour) indicates how many amps the battery will theoretically provide for one hour whilst not being charged. The only thing you are limited by is the physical dimension of the battery -as I said go for the most Ah that will fit!!

 

[clubsport]

Or stick with the standard A/H output and fit the smallest Leichtbau battery you can find []

 

[carreraboy]

IN 8 years of RS ownership, minus a few months agony, never had a problem, just use the isolator............

 

[rskiwi]

ORIGINAL: BlueNGT

ORIGINAL: Tony

I'm with Des on this - definitely Halfords - 3 year warranty which they honour - but do keep the receipt!.
Seems to be an HB 063 whatever amperage that might be.

Tony

I was going to go to Halfords but a friend has put one of theirs in his RS and he reports it doesnt idle as well as it did.

I've emailed a friend at Porsche with the correct RS (999 611 036 20) part number to see what the cost might be from them. Also Costco sell Bosch and have a guy phoning Bosch technical for me to find out about the 36 Amp/hr availability.

Is it dangerous to put a higher amp/hour battery in the car?

What minimum cranking amp is needed?

The reason the car will not idle properly is that when you change the battery you should let engine idle for 15 mins to reset the electronics. Have a look in the handbook!!

Jeff