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Forum: Electrical: Batteries, Generators & Solar

26-08-2014, 18:44

Replies: 103

Voltage Drop in AGM Under Load?

Views: 21,715

Posted By Paul L

Re: Voltage Drop in AGM Under Load?

I'm not buying 30% reduction in capacity after 1 year of use is standard and to be expected. It is a failure in my mind. Does their warranty cover anything after a year?

Forum: Electrical: Batteries, Generators & Solar

26-08-2014, 09:56

Replies: 103

Voltage Drop in AGM Under Load?

Views: 21,715

Posted By Paul L

Re: Voltage Drop in AGM Under Load?

Not sure doing a comparison between failed AGM and healthy LFP is that valid. It will be interesting to see the failure rate of LFPs once they are get beyond the bleeding-edge type users and into the...

Forum: Electrical: Batteries, Generators & Solar

22-08-2014, 12:49

Replies: 103

Voltage Drop in AGM Under Load?

Views: 21,715

Posted By Paul L

Re: Voltage Drop in AGM Under Load?

Lifeline didn't start out suggesting equalization. It was only after a lot of issues that they, seemingly reluctantly, published the directions. I spoke with the guys at Rolls on their AGMs and they...

Forum: Electrical: Batteries, Generators & Solar

22-08-2014, 09:33

Replies: 103

Voltage Drop in AGM Under Load?

Views: 21,715

Posted By Paul L

Re: Voltage Drop in AGM Under Load?

You got me interested. If you go to the Lifeline website they mention milspec designations, but they don't tell you which ones. So it really says nothing. Are you saying the marine batteries are...

Forum: Electrical: Batteries, Generators & Solar

22-08-2014, 08:52

Replies: 103

Voltage Drop in AGM Under Load?

Views: 21,715

Posted By Paul L

Re: Voltage Drop in AGM Under Load?

I think Lifeline is the only manufacturer that publishes the equalization directions. I doubt that it has to do with their construction being better than the others. Maybe they've had a too many...

Forum: Electrical: Batteries, Generators & Solar

18-08-2014, 09:37

Replies: 103

Voltage Drop in AGM Under Load?

Views: 21,715

Posted By Paul L

Re: Voltage Drop in AGM Under Load?

They were aware of the failure. They had the distributor/seller do a lot of bench testing/desulafting/charging and sending results back. But the manufacturer was useless on the warranty.

Forum: Electrical: Batteries, Generators & Solar

17-08-2014, 12:15

Replies: 103

Voltage Drop in AGM Under Load?

Views: 21,715

Posted By Paul L

Re: Voltage Drop in AGM Under Load?

I haven't heard anything about gel/agm mixes. The batts I had were spec'd as AGM and they were not cheap knock-offs. They were spec'd slightly higher in capacity than others by weight, ie density....

Forum: Electrical: Batteries, Generators & Solar

16-08-2014, 15:05

Replies: 103

Voltage Drop in AGM Under Load?

Views: 21,715

Posted By Paul L

Re: Voltage Drop in AGM Under Load?

Unfortunately there have been a fair number of premature AGM battery failures that took place in a short period time. I had a set that lost probably 60-70% of capacity in one year. They had been been...

Showing results 1 to 8 of 8

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