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Old 12-16-2016, 04:28 AM   #2
jcslocum
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Join Date: Aug 2015
Location: Eastern Shore, MD
Posts: 623
The early boxsters used 2 different sized batteries. The Tiptronic model used the larger size with more cranking amps.

H6 (48) sized battery = smaller
H7 (94R) sized = larger

Here in the USA the difference is 750 cranking amps to 830 cranking amps. Significant! I just took put an H6 and installed the H7 battery.

The H7 is longer and the hole to bolt it down is built into the base of the tray for the battery, so either size will fit.

I have not see them workshop manual online. I bought a Bently.
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1966 912, 1976 911
1986 944, 2000 Boxster
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