How do I charge certain deep cycle 6-volt and 12-volt batteries?
Charging Recommendation for all Deep Cycle Batteries whose part number start with the letter "U" (this includes the following battery part numbers: U1800, U2000; U2200, U2300, U2400, U2500, U3050, U3050HC, UL-16, UL-16HC, U1450, U1850, U1850HC; U8VGC, U8VGCHC, USRM8V19, USRM8V-21 ...