Hi everyone, I recently purchased lithiums for my boat the M3130 model as well as the plug in the wall charger. The batteries were fully charged the night before and I killed them in 5 hours. They didnt even have the juice to turn on the blue light on my ultrex. Yes those 5 hours the trolling motor was on 5-7 because I was looking for beds but I figured lithiums lasted longer than lead cells. Took them out the next day after charging them that night again and killed them in 7 hours but i was only on 4-6 trying to make them last longer. I am in no way trying to bash the company just seeing if anyone else has experienced this. I did contact Lithium Pro's and did a voltage test which mine passed and was told i may need to purchase a third battery.