AGM Adventures- Update

SoundGuy wrote:
seems I have all the more reason to be happy with my recently acquired CTEK Multi US 7002 charger

landyacht318 wrote:
This statement reveals you absorbed only those things you wanted to hear.

Fact: Deeply cycled AGMS like the occassional higher amp recharge approaching that 30% rate. Some Like that 30% bumped to 40% and perhaps 'occasional' should be upped to 'frequent'.

Will the lack of this with your Ctek charger seriously negatively affect your proposed AGM battery life in your proposed usage?

I don't know, but My AGM show obvious obvious signs of being UNHAPPY with ONLY low and slow recharges, deep cycle after deep cycle, even if every recharges cycle get to the 98 to 100% charged range and my low and slow can reach 11 amps this time of year and 13 in summer, on 90Ah capacity.

Even with a 'smart' charger capable of higher than a 30% charge rate on a given AGM battery, will more likely regularly undercharge a deeply cycled AGM, than overcharge it or risk it venting.

Which again is not an instant death knell of the battery.

If your Ctek's 8 stages of battery charger marketing, and 7 amps maximum of charge current give you the confident and self assured warm and fuzzies.....

Well.....,

Congratulations!

I need at least 25 amps before warm and fuzzies can begin to set in
:)

I've been following this and related threads with interest and appreciate links supplied to additional supporting information on the subject but frankly don't understand the need for smart a$$ comments. :h I'm just here to learn, as are others, not challenging anyone's particular position on the subject. :R

In my case, since we normally camp on electric sites and only "dry camp" those times we may for one reason or another lose campsite shore power I'd only have the need to recharge from deep discharge a very few times each season. Sure, chargers such as the CTEK 25000, NOCO 26000, or a converter such as the PD9260 may be a more suitable choice based on their ability to safely charge at a higher rate but they're also much more costly than my CTEK 7002. Given that my 7002 will spend the vast majority of it's life in a maintenance mode rather than regularly recharging a deeply discharged AGM battery I don't quite see the equation between the fact it charges slowly at a maximum rate of 7 amps as a sure way to mistreat an expensive AGM battery. I guess time will tell. ;)