Not a one that's completely dead, but say an AGM battery that's at 75% and I want to top it off before trying to use it again. Can I use a regular lead acid battery charger? Do I have to worry about if the charger has a desulfation circuit (which they ALL seem to now, I couldn't find one without, I know they're death to Li-Po batteries)?
- Anybody can ask a question
- Anybody can answer
- The best answers are voted up and rise to the top
You don't need to worry about the desulfation circuit, although there are mixed reviews about how effective they are.
However, AGMs are more sensitive to overcharging than a standard SLA (sealed lead-acid) batteries. Actually, it's not the main charging cycle that is harmful, but the float-charge cycle that is used to top them off. If you are getting a new charger, make sure it has a setting for AGM batteries.
More detailed information can be found here.