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Jan 21st, 2020
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 Dumb Optima battery question ...
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Joined: Nov 1995
Posts: 4,746
OP
Unrepentant VW Lover
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For purposes of setting the charger correctly, are they "AGL" or "GEL" ?
John
"Paul! Klaatu barada nikto. KLAATU BARADA NIKTO!!!!"
'49 Chevrolet 3804
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Re: Dumb Optima battery question ...
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Joined: Jan 2016
Posts: 585
Shop Shark
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Re: Dumb Optima battery question ...
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Joined: Sep 2001
Posts: 30,820
ace skiver
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There is a specific charging procedure for recharging/charging a fully discharged 6v red top Optima AGM Battery. It is described on their website. Recovery Option #2, on the right.What type/model Optima battery are you referring to?
Last edited by tclederman; Mon Dec 30 2019 12:02 AM. Reason: added link
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Re: Dumb Optima battery question ...
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Joined: Feb 2013
Posts: 442
Shop Shark
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John, A gel battery design is typically a modification of the standard lead-acid automotive or marine battery. A gelling agent is added to the electrolyte to reduce movement inside the battery case. Many gel batteries also use one-way valves in place of open vents, which help the normal internal gasses to recombine back into water in the battery, reducing gassing. Generally, gel batteries are less tolerant of high heat and are charged at lower power than traditional or AGM batteries. An OPTIMA battery is neither a gel battery nor a regular flooded battery. OPTIMA is a SPIRALCELL TECHNOLOGY AGM battery. Or, just drive Charlie more! One more thing, there are no Dumb questions on this site, Mr Milliman! We just look at the person whom asked the question and take it from there!  See ya soon, in beautiful Morrisville Pa. Jim
Last edited by 53 green 1- ton; Sun Dec 29 2019 04:11 PM.
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Re: Dumb Optima battery question ...
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Joined: Mar 2010
Posts: 9,484
Master Gabster
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No such thing as a stupid question. 
Last edited by Rusty Rod; Wed Jan 08 2020 09:13 PM.
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Re: Dumb Optima battery question ...
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Joined: May 2015
Posts: 3,213
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
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John, if you have a UPS on your computer stuff, they use gel batteries. But like posted above Optimas are not gel, but are AGM (Absorbent Glass Mat).
My charger has an AGM setting. I just use that for recharging my boat Optimas.
Kevin First car '29 Ford Special Coupe #2 - '29 Ford pickup restored from the ground up. Newest Project - 51 Chevy 3100 work truck. Photos [ flickr.com] Busting rust since the mid-60's
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Re: Dumb Optima battery question ...
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Joined: Sep 2001
Posts: 30,820
ace skiver
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6v Optima available from Advance Auto Parts, with a 20-25% off promotion (25% shows up on a pop-up menu).
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Re: Dumb Optima battery question ...
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Joined: Nov 1995
Posts: 4,746
OP
Unrepentant VW Lover
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Thanks for the input everyone -- I'll try Tim's Option No. 2 when I get a chance (which won't be any time soon).
John
"Paul! Klaatu barada nikto. KLAATU BARADA NIKTO!!!!"
'49 Chevrolet 3804
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Re: Dumb Optima battery question ...
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Joined: Sep 2001
Posts: 30,820
ace skiver
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I had a dead 6v Optima that would not charge, using any type of charger (including a heavy-duty big-truck battery-charger at a friend's professional garage).
The technique on the Optima website (that I linked-to, above), got the battery working again.
That was at least 10 years ago.
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Re: Dumb Optima battery question ...
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Joined: Nov 1995
Posts: 4,746
OP
Unrepentant VW Lover
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Tim, Roger that. The hardest part about that trick is finding a second 6-volt battery ... that's charged ... and isn't on the other side of the county
John
"Paul! Klaatu barada nikto. KLAATU BARADA NIKTO!!!!"
'49 Chevrolet 3804
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