danomar wrote:
My understanding is that the number (16 in this instance) relates to its amp/hour rating. I think. I recently replaced the battery in my F1 with the "14" equivalent of the same-ish battery, so my guess is that your 996 battery has more cranking power. Whether or not that is compatible with the charging system, I know not.
Thanks for your input. I couldn't work out why a smaller, 904cc, motor would need a battery with 16Ah, and the larger motor of the 996 needs a 'smaller' battery. I have found an AGM battery of 13Ah, at the same physical dimension, except 15mm taller, which would require me to modify the battery tray, which is not a problem.
And I do believe that these 'dry' batteries pack far more punch than a wet acid-cell jobbie.
But like you I have no idea how this would affect the charging system.