Keeping a charge on AGM batteries
Keeping my previous coach connected to shore power for extended periods of time required monitoring the water levels in the lead acid batteries but my new coach has AGM batteries. Am I correct in assu...
Forum Discussion
wa8yxm wrote:
In days of old some of the converters were first class JUNK and would destroy batteries if left connected too long.. I don't think that converter type has been manufactured in the last 20 years
Modern converters come in 3 or 3+ types
Single state: More proper to call this a "power supply" Fixed out put voltage normally 13.6 battery NEVER gets to full charge
Two stage... Bulk/Float This recharges much faster but depending on the unit may or may not fill the cells with power.
Three State (Bulk/Absorption/Float) Now this rapidly recharges the battery to like 90% then slowly tops it off to FULL then switches to Float. Best type
The PLUS. Equalization or desulfacation features.
And mine for my AGM or wet cell is 7 stage plus equlization or desuf.
Provided the converter has the proper "profile" You are golden. But even a Flooded Wet charger like the Progressive Dynamics Charge wizard is at worst Silver with AGM's (The profiles are mighty close)
If your rig was made this century. post the make and model of your converter for more.
