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The small Optima battery has now been ‘Fully Charged’ according to my AGM battery charger. It started at about 5.7v when I initiated the ‘Good Battery in Parallel’ method of charging. It took a couple of days where the charger was in ‘Boost Mode’ adding a charge to the Optima. The Boost Mode...

This instructional video on charging very low voltage AGM battery might be helpful. It describes the ‘Good Battery in Parallel’ charging process. Sent from my iPad using Tapatalk

Thanks again for all your help. The first Optima was at 5.7v when I started the ‘Strong Battery in Parallel’ charging method. My charger has run through a couple of charging cycles but the voltage in the Optima now reads 10.2v so things are moving in the right direction. The charger seems to be...

Thanks for the tip for using a strong battery in parallel with the discharged AGM in the charger setup. Attached please find a pic of the setup I am using. I looked at the NOCO charger website and they look like the Cadillac of battery chargers. I might have to add one to my Christmas list. ;)...

5.71v in one and 3.64v in the other. Note, this is after being on the AGM charger for 12 hours. The charger indicated “Bad Battery” on the one with 3.64v after completing the charging cycle. Sent from my iPad using Tapatalk

I did my best to bring back the OEM Optima batteries but no joy. I used a quality battery charger that has a AGM setting. It looks like I will replace them with new AGM batteries. Sent from my iPad using Tapatalk

Thanks for all the great advice. I will get into the TM and learn more about this piece of equipment. Sent from my iPad using Tapatalk

I picked up one of the MEP 1040 GenSets at the recent USMC Albany sale on GovPlanet. I think the batteries might be shot but I jumped it with 24v and it fired right up. The meter reads 8 hours but I don’t think this one was ever issued. It still has all the new tags on it. I plan to use...