Quote:
Originally Posted by TroutMD
Is there any issue by having a different size battery than what the tray accomodates? I understand the 4.5 usually has a series 49 battery?
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No, but asking an alternator to fully charge a battery in addition to running ignition & potentially lights, radio, the blower etc. is putting a high load on it. I would make sure to charge it first, only jumping in an emergency situation.
Batteries have gotten a LOT better over the 40 years these were made. A 49 in today's standards may be "Overkill" but since it fits, it'll also last a lot longer. Not to mention that it looks better. The group 48 you have now is probably 100 or more CCAs better than a 49 was in 1969-1970 when the battery for these was initially specified. But a 49 has even more.
https://www.menards.com/main/electrical/batteries-battery-chargers/automotive-batteries-chargers-jumpers/exide-reg-l5-49x-global-extreme-automotive-battery/p-1444430136186.htm
This is the current equivalent to what I had in my 4.5. I will say that it didn't like sitting one bit either, and died when it was discharged 100% for 2 months.