Quote Originally Posted by muzzy125acc View Post
What charger is good?

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Most any charger can be good, but some take a lot more operator effort than others to get good results. I'd steer clear of any charger with a timer or that is labelled just "Automatic" for routine deep cycle charging. Generally the portables that are labelled as "Smart Chargers" or "3-stage" or "4-stage" tend to be best since they monitor battery current draw and shut the charger down to a maintenance mode when the battery is fully charged.

Black and Decker makes some portables that are good, and the Schumacher Ship and Shore line are good portables as well. Any of the common onboards do a good job. Dual Pro, Guest, Minn Kota, NOCO, Pro Mariner and the Cabela's and BPS versions too.

10A is always a good charge rate for the batteries typically used in boats. 15A is fine and 5A is acceptable for routine charging too. Weight and your need to quickly recharge come into play in deciding. Some larger AGMs need more current than that to get maximum life when they are deeply discharged routinely.