Batteries for my 69E Bosch S4001

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domtoni
DDK forever
Posts: 704
Joined: Sat Feb 26, 2005 2:38 pm
Location: kinver staffs

Batteries for my 69E Bosch S4001

Post by domtoni »

What's the latest on the best battery brand? The two cheapies in my car finally failed, and wouldn't start the car today.

They are on a conditioner, and I at least had 14 years life out of batteries for which I paid GBP 35 each. Not bad value.

I understand the Bosch batteries made in Spain have a higher failure rate than previous Bosch batteries.

Yuasa has a 52 amp equivalant.

Comments please?
domtoni
1969 911E
ER Polybronze bushings, turbo tie rod ends, and 21/26mm torsion bars
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g3ngs2
Married to the DDK
Posts: 250
Joined: Fri Jul 02, 2021 10:00 pm
Location: St Albans

Re: Batteries for my 69E Bosch S4001

Post by g3ngs2 »

I can't make any specific recommendations - but I salute your getting your money's worth out of those batteries

Bravo sir!
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Gen 2 Boxster
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domtoni
DDK forever
Posts: 704
Joined: Sat Feb 26, 2005 2:38 pm
Location: kinver staffs

Re: Batteries for my 69E Bosch S4001

Post by domtoni »

g3ngs2 wrote:I can't make any specific recommendations - but I salute your getting your money's worth out of those batteries

Bravo sir!
The battery conditioner was what made the batteries live, I had a 4 yr battery on my daily driver, a Merc C220 diesel and it lived 4 yrs and then good bye.
domtoni
1969 911E
ER Polybronze bushings, turbo tie rod ends, and 21/26mm torsion bars
domtoni
DDK forever
Posts: 704
Joined: Sat Feb 26, 2005 2:38 pm
Location: kinver staffs

Re: Batteries for my 69E Bosch S4001

Post by domtoni »

Just an update, I went out and put 20 miles on the car. Voltage dropped to 8.9V, cranked slowly but it fired. Thankfully I had installed one of the hot CD boxes a few years ago. After about 45 minutes of running, one of the batteries didn't charge very well, and it cranked slowly on the drive but started. Needs new batteries.
domtoni
1969 911E
ER Polybronze bushings, turbo tie rod ends, and 21/26mm torsion bars
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