Packard Forum Index » Pre-War (1899-1942)

Short and sweet......is there a direct replacement out there for the battery?The biggest CCA That fits nicely in the holder?

Don't believe there is an easy correlation between the old ampere hour ratings and todays CCA to know exactly which modern battery is a direct replacement.

Some use the Napa 7204 which is a bit larger physically than the original size used on the six but fairly close in size to the original size used on the 8 cylinder 41s. No idea if any or how much difference in tray sizes between the six and eight for the different batteries so that might be a consideration.

Many have also chosen the Optima 6v as a readily available and maybe easier to find 6v replacement. CCA rating is comparable between the two. John Ulrichhttp://julrichpackard.com/battery.htm makes a new tray to adapt the narrow and taller Optima to the original underfloor space as well as a deeper tray for the taller conventional batteries.

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Thanks so much.