Ok, Thanks, Bruce. I scanned through then focusing on the areas about this re-boot situation and it appears that low voltage and range seem a big factor in this situation. Of course, the fix is to maintain battery voltage above the point where it will cause problems. Dual battery setup's using larger than typical capacity batteries is a good way to avoid this problem. Again, within reason. But with that Tiger 120 with OS 1.20 AX engine.. and that pound of lead I needed in the nose to obtain a proper CG, weight is not an issue.. [:@]

So... a pair of 1200 mah NiMH batteries seems just the ticket.. and voltwatch.. loading voltmeter.. all those bells and whistles.. plus a little diligence and perhaps I won't see the problem.

Dick.