Flags, thanks for the link!
About how much does the FF with mount complete setup weigh with batteries? I do some hiking and portaging with my FT, so I try to keep the weight to a minimum.
Have you used the horizontal shooting transducer? If it works well that way, it might be useful for some of the first time Waters that I visit.
I think the lithium AAA batteries are lighter and last longer, with the drawback of being considerably higher cost.. Although less expensive AAA alkalines will probably work, they eventually leak even when left unused. I've had a few appliances ruined when they corroded the contacts, when I forgot to remove them alkalines. Don't know if the lithiums corrode also, but all the rechargeables I have used haven't leaked so far over periods of at least 10 years. I've had good luck with the AAA Eneloop brand, which hold their charge longer, and seem to have a higher capacity compared to other brands.
Porta did you know that FishFounderMounts.com has a float Tube mounting kit with a 12v rechargeable battery inside that doesn`t weigh much? You just attach a small FF of your choice w/ transducer ,strap it on when you get to your back woods destination ,and away you go!. Their Cust svc is EXCELLENT in setting you up for a day on the water if you tell them what you have and are trying to do.
1-(855) 784-3474 Just passing it on to you & anyone else interested
btw: the battery does`nt leak. had mine for years