How Do I Charge, and Maintain 2 New 6 Volt Batteries???

When you get the opportunity, I suggest buying the BD1093 portable charger.



It is a 40 amp charger and does equalizations too. I have one and BFL has an older version. Works great and will be a LOT quicker than that 10 amp you have. Some may suggest upgrading your converter but you might have to upgrade your wiring too in order to get the best use from it.