Sealed lead acid batteries are persnickety on charge voltageĀ levels. Too high and ya ruinĀ them. You need a controller that is adjustable so you don’t destroy your battery..
I suggest one of these..
https://www.ecodirect.com/Xantrex-C12-PWM-Charge-Controller-12-Amp-12-Volt-p/xantrex-trace-c12.htm?gclid=CLzCj_bfl7ACFeEDQAod837x0g
Bulk.. 14.1 volts.. Float.. 13.6 volts.. Might take you a week to get the voltages set but it’s easy to understand and very reliable..
