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2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-08-2009, 01:16 AM   #21
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Optima'* aren't gel batteries, they are AGM. Heres how they work:
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[edit]Absorbent glass mat (AGM)

Absorbent glass mat (AGM) is a class of VRLA battery in which the electrolyte is absorbed into a mat of fine glass fibers. The plates in an AGM battery may be flat like a wet cell lead-acid battery in a rectangular case. In cylindrical AGMs, the plates are thin and wound, like most consumer disposable and rechargeable cells, into spirals so they are also sometimes referred to as spiral wound. Their unique (for lead acid chemistries) construction also allows for the lead in their plates to be purer as they no longer need to support their own weight as in traditional cells. Their internal resistance is lower than traditional cells due to plate proximity and the pure lead plates have lower resistivity, they handle higher temperatures better, and self discharge more slowly.[citation needed]
Their specific power is very good and they can be charged and discharged quite rapidly, however their specific energy tends to be lower than traditional flooded batteries. They are often used in high performance electric vehicles due to their high power density.
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Old 11-08-2009, 08:54 PM   #22
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dang. stand corrected lol
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Old 11-12-2009, 02:01 AM   #23
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Most Police cars dont carry the battery in the passenger compartment. As well for most applications wouldn't cause a Sealed type battery to blow the safety vents. But we have to remember anything is possible, especially in older vehicles. So lets keep our advice sound in regards to safety. The Bonneville is designed with a cabin interior battery with safety venting engineered into it. So our stance should be, be safe and follow OEM safety guidelines. Not how to get around them.
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Old 11-13-2009, 05:47 PM   #24
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I completely agree, like I said its news to me and a few guys at the shop that Optimas arnt Gel, nor did we even put 2 and 2 together about the vent holes.

we'll keep that in mind considering there is a difference between charging a GEL battery and an AGM. I recommend ACDelco Battery 90% of the time anyways.
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