Quote Originally Posted by airshot View Post
Remember that the Lipo4 batteries give 13.3 volts rather than 12.6 from a lead acid battery. Many trolling motors can't handle the 13.3 volts at wot and will shut off. MK actually recommends not running the trolling motors at wot as they will overheat and can shut off or be damaged. MK recommends a max of 8 out of 10 on speed when using these LifPo4 batteries.
That's exactly what's happening. MK specifically says not to run their older trolling motors with brushed motors at max speed with lithium batteries. The new Quest brushless motors are 100% lithium compatible.