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Will My Converter/Charger Work With A 100ah AGM Battery?  

Question:

I plan on switching to an AGM 100ah battery. Do converter / chargers handle AGM which require slightly higher voltage? I see where some claim to switch between lead and lithium, but I need to know about AGM.

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Expert Reply:

Hello Kg. Most all of the converter/chargers out there will be compatible with AGM batteries. Although each unit will have its own list of compatible battery types. For example, the Progressive Dynamics 4000 Series RV Converter w/ Charge Wizard and AC/DC Distribution Panel - 60 Amp # PD4060K that you were looking at is compatible with lithium-ion, flooded lead acid, AGM, and gel batteries. If you can tell me exactly what model converter charger you have, I can tell you if it will work with AGM batteries or not. In all likelihood, it will.

Most units will work with flooded lead acid, AGM, and gel batteries which all use similar charging profiles. Lithium batteries require a different charging profile, and not all converter/chargers are compatible with lithium batteries. Some have a switch to change to lithium mode like you mentioned. Others are made to be lithium compatible and do not require a switch. Other (mostly older) units are not lithium compatible at all. It really just depends on what model you have and how old it is.

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Jesse M
Ernie V. profile picture

Ernie V.

11/13/2024

I have a PD4590 progressive Dynamics power controller In 5th wheeler new came with flood batteries 1 blew apart didn’t check fluid in cells charger seems ok would like to replace with group 31 AGM Will they work with charger in controler

JesseM profile picture
Etrailer Expert

Jesse M.

11/13/2024

@ErnieV Hell Ernie. Yes, the PD4590 progressive Dynamics power controller is indeed compatible with AGM batteries.
Joel profile picture

Joel

11/28/2024

@JesseM Hi Jesse, I have a 2007 Bigfoot truck camper with a Parallax Power Systems 45 Amp 7300 series, Model 7345 Converter. Will this converter charge AGM batteries acceptability? It seems to be putting out about 13.5 volts while plugged into shorepower. Thanks in advance. Joel
JesseM profile picture
Etrailer Expert

Jesse M.

12/2/2024

@Joel Yes, the # PD4060K Progressive Dynamics 4000 Series RV Converter mentioned above is indeed compatible with AGM batteries. It will work with lithium-ion, flooded lead acid, AGM, and gel batteries.
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