Ed_Gee wrote:
From Battery University:
AGM has very low internal resistance, is capable to deliver high currents on demand and offers a relatively long service life, even when deep cycled. AGM is maintenance free, provides good electrical reliability and is lighter than the flooded lead acid type. While regular lead acid batteries need a topping charge every six months to prevent the buildup of sulfation, AGM batteries are less prone to sulfation and can sit in storage for longer before a charge becomes necessary. The battery stands up well to low temperatures and has a low self-discharge.
The leading advantages of AGM are a charge that is up to five times faster than the flooded version, and the ability to deep cycle. AGM offers a depth-of-discharge of 80 percent; the flooded, on the other hand, is specified at 50 percent DoD to attain the same cycle life. The negatives are slightly lower specific energy and higher manufacturing costs than the flooded, but cheaper than the gel battery.
Yes a Lifeline AGM can accept the 5 x as many amps on Bulk. (My ordinary AGMs won't) But your 55 amp charger can't do 5 x 55 = 275 amps
And you would need a pretty big generator to run it at those kind of amps too! :)
It is a bogus claim. An AH is an AH and you can't speed up the hours while having the same amps. The charger can't "go" any faster.
