It seems running two golf cart batteries in a series is the way to fill my two battery compartments (when I get them). I see they run slightly larger than a more typical 12 volt. I assume these fit th...
An 18650 is essentially an LED/ Laser flashlight battery. 3.7v@ 3000ma. I'm holding one in my hand.
OP- Whats a "Six Pac" ?
$180 seems steep for a Duracell (They're kinda so-so). See of you have a Battery Systems store around you and ask what the going price for the various Trojans (-105, -125, -145) is these days. I bought 4ea T-145 @~$150ea. 2 years ago. Another 10lb heavier and +35ah @ 20A draw more current.