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Old 04-28-2019, 10:01 AM   #15
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Milford 47 said:

"Sam's Club is certainly hit and miss on AGM's. Several problems apparently with the batteries. "

What kind of problems? Just bought two of them.
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Old 04-28-2019, 10:14 AM   #16
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AGMs and corrosion? I have had one in a car since 2001 and never corroded anything in the trunk. My house batterys are AGM and I am using them in 5 vehicles and never a problem with corrosion!
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Old 04-28-2019, 10:31 AM   #17
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There is more to charging than the max rate...
This is worth a read if you are thinking AGMs charge a LOT faster. I'm not saying there aren't advantages... I have several and will likely change house bank over when needed. Just go in understanding the + / -
https://marinehowto.com/how-fast-can...ry-be-charged/
You can check stock at Sam's Club online. No need to chase around.
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Old 04-29-2019, 11:06 AM   #18
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Quote:
Originally Posted by Winemaker2 View Post
There is more to charging than the max rate...
This is worth a read if you are thinking AGMs charge a LOT faster. I'm not saying there aren't advantages... I have several and will likely change house bank over when needed. Just go in understanding the + / -
https://marinehowto.com/how-fast-can...ry-be-charged/
You can check stock at Sam's Club online. No need to chase around.
Read that white paper several months ago and found it to be an interesting read. Give an AGM battery twice the charge rate and you would expect it to charge twice as fast (or nearly so) but this is no where near the actual result, but only 12 minutes faster was an eye opener.
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Old 04-29-2019, 11:15 AM   #19
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Read that white paper several months ago and found it to be an interesting read. Give an AGM battery twice the charge rate and you would expect it to charge twice as fast (or nearly so) but this is no where near the actual result, but only 12 minutes faster was an eye opener.
Agree and that's why I posted it.
The point many forget is chargers only operate at max output for a relatively short time during charge cycle.
Some folks run a gen for 30 -60 min and think battys are topped off... not so.
Do that a lot and it hurts an AGM... they need to be FULLY charged fairly often.
I am not against AGMs or larger chargers just do it withvryescwide open and understand the basics.
CMS is wealth of knowledge and very willing to share. I have bought products from him and support his website as a result.
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Old 04-29-2019, 11:49 AM   #20
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Quote:
Originally Posted by Winemaker2 View Post
Agree and that's why I posted it.
The point many forget is chargers only operate at max output for a relatively short time during charge cycle.
Some folks run a gen for 30 -60 min and think battys are topped off... not so.
Do that a lot and it hurts an AGM... they need to be FULLY charged fairly often.
I am not against AGMs or larger chargers just do it withvryescwide open and understand the basics.
CMS is wealth of knowledge and very willing to share. I have bought products from him and support his website as a result.
Agree 100%. Rod is a great wealth of information. As a result I have made a donation to his website to further his projects.
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Old 04-29-2019, 06:25 PM   #21
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Have read Rod a few times too! And good info in the link, that I've read before. I agree how interesting it was that it was not that much of a time difference in overall charging. And yes, Smart Charger's many times 'out smart' (Or, IMO, do not have the flexibility to allow the person behind the curtain, to override their programming!), by stepping back the Bulk/Absorb charge levels.

Lifeline's do allow a rather substantial amount of AH's while charging... And having multiple charging sources (Including Non Smart - User Controlled values) can allow the person behind the curtain, to pump in some AH's over limited time periods! (And, very possible other AGM's do too... And, know question, not the same as Lithium on the recharging front!)

As with many things in life. Price points, vs ease of usability, vs actual needs - do become part of the decision process.

Best to all,
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