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Battery size?

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22NF - it has the hold down lips on the ends of the battery

But many use a 51R, basically the same physical size, but no hold down lips.  Here's a pic of a 51R in my Homelite T-12 showing there's nothing for the hold down plate to press on except the side of the battery:



Edited by PhanDad
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I use a 380 CCA battery, lawn and garden sized. That size battery is fine for starter generators, but can be deadly to a gear starter if the engine does not start easily. Gear starters on old Briggs and Kohlers cannot handle the amps over too long a time, and simply burn up. If you are going to use a big battery, be certain your engine starts easily and quickly once the starter is engaged

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