Are there any Lithium Ion batteries PMA'd for the 337? They are taking over in the Bonanza world. Half the size and weight, far more CCA. Would love to have a LI option for our planes! Comes in its own box too, so get rid of that ridiculously expensive battery box, especially the $1000+ plastic battery box in late model 337s.
https://www.truebluepowerusa.com/pro...nanza-a36-stc/
I may install one via 337 if no PMA solution is available. (I guess 337's for 337's is a tired joke by now on this site
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