The Maypole charger I linked to has standard and AGM modes as well as winter mode for each, when slightly higher voltages can be accommodated to advantage. Both modes use pulse charging when deemed necessary as part of the automated charge profile.
Worth mentioning it switches automatically to accommodate 6 volt batteries as well.
I've got a couple - one on the Mog and one for the tintop. My tintop has some dodgy electrics and the battery will flatten in a week if left.
My only criticism is that if the tintop battery drops to below 6volts, it will only charge up to 6V as it assumes it's a 6V battery. It won't allow me to select 12V. I have to jump start her first, to get the volts up a bit before the Maypole will kick in.
