I have a 2014 Skeeter ZX200. Last week I charged the batteries all night and they were fully charged when I left in the morning. After a 1 hr drive to the lake both of my depth finders were alarming with low voltage warnings and my cranking battery barely had enough juice to crank my Yamaha. I tried several times the past couple of days and it just will not hold a charge for very long. I currently have a Powertron Extreme. I know I want the biggest battery that will fit. The length of the battery tray is about 12".
Any suggestions on a cranking battery?