Hi, I have a new set of four 33 amphr SLA batteries configured series/ parallel for 2-24 volt cells. I am using them in an electric trike and want to preserve their life as long as I can.
What is a safe and reasonable discharged voltage?--(the voltage at which I should recharge them) I keep hearing "don't discharge over 30%"---well, 30% of WHAT??? 30% of 12 volts is 4 volts & 12-4 =8 & I KNOW they don't mean 8 volts. I just need the voltage below which I should not let them go. Thanks for your help!