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Old 7th February 2018, 04:40 AM
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27litres 27litres is offline
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Join Date: Jan 2014
Location: Belgrave, Australia
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CCA rating is more important than the Ah rating, though a higher Ah rating means it has "more to give" so to speak.
A voltage drop during crank is to be expected, as the battery is having the oomph pulled out of it.
I've never measured one to see if 9.6 is a standard voltage or not.

One thing I have learner over the years though is that you should never under rate a battery for a diesel below that of OEM.
In order to start the car, a smaller capacity battery will have more pulled out of it in comparison to a larger capacity battery, meaning the recovery time (as in charging) is higher.
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Marty


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Current:
2001 Audi S8 - Brilliant Black with Black interior, C5 RS6 rims (whenever I actually put them on...), Solar Sunroof, Tinted side and rear glass, RNS-D, Grom, Bose, clunky old phone in arm rest!
2002 Audi S8 - Project
Replacement head coming arrived thanks to MJ
Silver with Black interior. All features as the '01, with the 'S' mode auto shifter. Dodgey rear tint (need to find a way to get rid of that).
Family:
2009 Volvo XC90 V8 R Design
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Sold:
1997 Audi A4
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