Quote:
Originally Posted by acdii
No solar on this trailer, maybe the next one. I only have a small battery charger solar on my RC trailer. It's just a 6 x 12 enclosed that I use to ferry my planes to the flying fields and use as a repair shop if something breaks. Knowing that suphication kills batteries, already killed one deep cycle, I want a good unit in my TT so not to kill the AGM when not in use. I keep the trailer plugged in year round.
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AGM https://batteryuniversity.com/learn/article/absorbent_glass_mat_agm
Here is what you need to know about AGM's that is different from flooded cell batteries. Generally they do not need de-sulfating. In fact sudden high charge rates used to de-sulfate can cause venting which permanently damages AGM's.
Fast charge for typical AGM
1) Bulk charge up to 14.4 volts for 4 hours or less
2) long absorption charge at 13.6 volts (14 hours or more)
3) maintenance at 13.2 volts for sustained storage
or battery disconnect for 6 months storage.
Your 1 stage charger in your TT may be set to 13.2 and will work fine unless you want to charge faster. You do not usually need a de-sulfation stage for AGM's.