I need to charge a lead acid battery, I will be manually developing a program to set the current. Its the "US 12V XC2" Deep Cycle battery. Here is a link to the datasheet: http://usbattery.com/wp-content/uploads/2015/01/usb_12V_data_sheet_2015_web.pdf
The part I am confused about is "Bulk Charge Constant current @~10% of C/20 Ah in amps" does that mean C = 92? or C = 155? or is C/20Ah = 155?