Trailer Battery Load Support
As a followup to my recent discussion about my newly acquired CTEK Multi US 7002 Charger I'd be interested in some further input on the subject of trailer battery load support. :) First, I should c...
Forum Discussion
I slap my Northstar-27 AGM upside the head with a high amp recharge when I either notice it not cranking my engine as fast as normal, or when my trends and tendencies mind graph notices a lower voltage held for AH removed under a certain load in my regular house over night depletion.
For example, I press my battery monitor's button to illuminate the display, see the voltage and load the battery is under, then press the button again and see AH from full, and if that AH from full is 20 instead of 30, I know the slap upside the head is required to return expectations. Reducing load to see how quickly voltage rebounds can also play a part.
Also, I kind of remember how long it has been since the last time it got the 40 amps from the Meanwell rsp-500-15 from its most depleted state. Or when I started the engine early morning where it feeds it 62+ amps at cold idle and ~90 amps initially, at higher rpms.
High amps From the most depleted state is kind of key, a few hours of solar getting it to ~40Ah from full, then apply 40 amps and voltage rises much faster to 14.5v and amps start tapering quickly, and this is not the proper slap upside the head, appearing not to be as effective in terms of how fast the starter cranks the engine or voltage held during that nights discharge.
I often go out of the way to insure I can apply the 40 amps or more before the solar has a chance to feed the battery, and I really want it to be 60% or less charged for the full high amp slap upside the head to be most effective and which seems to return performance to levels nearing that of when it was new.
I've no idea how much of a High amperage recharge slap upside the head other AGMS require. Only that Odyssey and Lifeline also recommend it in deep cycle duty.
The 30% limited AGM batteries might appreciate amperages upto that much, or merely tolerate it. I know not.
I very much like the fact that I do not have to worry about my alternator feeding it 90 amps when I start driving early morning when the battery was drained 65 of its 90AH capacity the night before.
It also has absolutely no issue cranking my engine depleted 65Ah from full, at least in mild temperatures. It is currently the only battery I use in my RV. even though I have room ( and wiring already present) for another 200Ah of capacity.
For example, I press my battery monitor's button to illuminate the display, see the voltage and load the battery is under, then press the button again and see AH from full, and if that AH from full is 20 instead of 30, I know the slap upside the head is required to return expectations. Reducing load to see how quickly voltage rebounds can also play a part.
Also, I kind of remember how long it has been since the last time it got the 40 amps from the Meanwell rsp-500-15 from its most depleted state. Or when I started the engine early morning where it feeds it 62+ amps at cold idle and ~90 amps initially, at higher rpms.
High amps From the most depleted state is kind of key, a few hours of solar getting it to ~40Ah from full, then apply 40 amps and voltage rises much faster to 14.5v and amps start tapering quickly, and this is not the proper slap upside the head, appearing not to be as effective in terms of how fast the starter cranks the engine or voltage held during that nights discharge.
I often go out of the way to insure I can apply the 40 amps or more before the solar has a chance to feed the battery, and I really want it to be 60% or less charged for the full high amp slap upside the head to be most effective and which seems to return performance to levels nearing that of when it was new.
I've no idea how much of a High amperage recharge slap upside the head other AGMS require. Only that Odyssey and Lifeline also recommend it in deep cycle duty.
The 30% limited AGM batteries might appreciate amperages upto that much, or merely tolerate it. I know not.
I very much like the fact that I do not have to worry about my alternator feeding it 90 amps when I start driving early morning when the battery was drained 65 of its 90AH capacity the night before.
It also has absolutely no issue cranking my engine depleted 65Ah from full, at least in mild temperatures. It is currently the only battery I use in my RV. even though I have room ( and wiring already present) for another 200Ah of capacity.
