Theis
Not to whip a dead horse, but what about a sealed battery in a "watertight" compartment? I don't think laminating in a platform under the sole is a viable option, but in a case like mine where the cabin sole has to be rebuilt/replaced, it would be very easy to section off a portion for that purpose. Gasketed hatches in the cabin sole with positive latches(kinda rhymes) should keep water out until the head pressure get exceedingly high at which point I'm in a lot more trouble than dead batteries! Maybe I'm obsessed with keeping the weight low and a little forward. So go ahead, shoot it full of holes 'cause I want to know before I start laying glass! Tony G

PS Of course it's not just Theis' it's open season for all of you and Tim too.