I went with 2 8D batteries versus the standard 4 for the M818. I did a slight modification to the battery box. Cut off the 2 center knubs. I welded up these hold down brackets. You can use the standard hold down bolts as well.
If there is interest, i can scan my sketch with dims for those who want to replicate.
If there is interest, i can scan my sketch with dims for those who want to replicate.
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