battery

1959 - 1962, Mighty Mite, M422, Wanted, USED PARTS FOR SALE, and Knowledge Base
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scoutwitt
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battery

Post by scoutwitt » Tue Jul 03, 2018 9:04 am

I just inherited an M422 from my dad that has been sitting stationary outside for 8 years. It has no batteries and a friend told me it needs two 6volts in series, so I bought two and hooked them up and cranked it up and got the starter to move but sluggish and engine also didn’t start. Then I downloaded the manuals and found that it says two 12Volts in series.
I am assuming now that my friend was wrong. Any specific batteries I should use?

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rodusmc1962
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Re: battery

Post by rodusmc1962 » Tue Jul 03, 2018 2:06 pm

I use NAPA legend batteries with no problem, 2- 12 volt inline with dog bone cable attaching them. Measure you battery box to be sure you have the proper size. It is probably best to ask a none mite persons for advise ,as these vehicle are one of a kind, good luck.

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rodusmc1962
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Re: battery

Post by rodusmc1962 » Tue Jul 03, 2018 2:11 pm

It is probably best NOT to ask a none mite person, sorry for my typo .

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mspeters
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Re: battery

Post by mspeters » Tue Jul 03, 2018 9:32 pm

2HN is the original military size. Available from MV parts suppliers.

Common group 51R batteries are a close match. Also available in sealed valve-regulated AGM from Bosch, Duralast, Optima, XS Power. Two cheaper small U1 garden tractor batteries might suffice temporarily.

It would be very worthwhile to borescope the cylinder walls for any peeled chromium plating before attempting to start.

scoutwitt
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Re: battery

Post by scoutwitt » Tue Jul 03, 2018 10:23 pm

I did look down a scope but could only see flecks of something reflective so I am taking the engine out for a rebuild.


B.C.
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Re: battery

Post by B.C. » Thu Jul 05, 2018 10:23 am

Napa Legend 7545 is a perfect fit. Look at the second and third posts in the MM category for manuals, part numbers, and other useful information about your Mite.
Brian Cowdery
USMC 1968-71

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