Another AGM conditioning question
This is my chassis battery, an agm I got used and have little experience with. Trickle charger failed in storage, it is dead as a doornail. Not covenient to babysit it for long hours on meanwell or...
Forum Discussion
Samsun Kilowatts for 24 hours = 1.71 which comes out to abut 142 Amps.
Looked at my notes from when we first installed the Samsung and were confirming power consumption, and Had very similar numbers. I also saw in my notes to round up, and I used 180 Amps per 24 hour period. For KISS (And I do at times equate to the last "S":)!), I used 12 hours of no solar or generator, so about 80 Amps draw overnight to support the Samsung.
Again following my notes, I used 15 amps for inverter inefficiencies as well as miscellaneous parasitic draws, per hour. So over 12 hours thats 180 Amps.
180 Amps + 80 Amps = 220 Amps.
Battery bank 800AH's, so 400 Amps useable. So I felt i had just 20 Amps over using 25% discharge potential from my bank.
In reality, probably due to cooler temps at night, less fridge opening at night I was seeing 100 + or - 15 AH's usage over night. On rare occasions, like using the Hydro Hot for heating the coach, 120 to 135 AH's. So, I concluded my bank was more then sizable enough to get me thru the night, and even a few days of less the full recharge if needed.
I guess that's the good news, that the Samsung is consuming in the same ballpark park that it always has.
Which then, leads me back to the Batteries are just not holding up in AH output capacity:)!
By the way, lowest I saw on Absorb cycle today (Got interrupted and did not see any readings the last 30 mins of the 4 1/2 run, was 18A. Now in Float at 12A.
I'm going repeat the test once it's cool enough for us to shut of shore power (On now for the AC:)!). And hope to time it better and see the Absorb Amps when it like in 4H 15 -20 M into the cycle. Suspect then I'll just set it back to 2 1/2 or maybe 3 hours for Absorb.
MW - I've enjoyed your posts. Cranky? Well if you say so. And by the way, were you near Mesa, AZ Costco in that chariot of battery powered wheels? I almost got run over twice by the same shifty eyed gent. Perhaps our paths crossed:)!
And again, my thanks to all of you for your help. And for the OP for letting me tag along on this thread:)!
Best to all,
Smitty
Looked at my notes from when we first installed the Samsung and were confirming power consumption, and Had very similar numbers. I also saw in my notes to round up, and I used 180 Amps per 24 hour period. For KISS (And I do at times equate to the last "S":)!), I used 12 hours of no solar or generator, so about 80 Amps draw overnight to support the Samsung.
Again following my notes, I used 15 amps for inverter inefficiencies as well as miscellaneous parasitic draws, per hour. So over 12 hours thats 180 Amps.
180 Amps + 80 Amps = 220 Amps.
Battery bank 800AH's, so 400 Amps useable. So I felt i had just 20 Amps over using 25% discharge potential from my bank.
In reality, probably due to cooler temps at night, less fridge opening at night I was seeing 100 + or - 15 AH's usage over night. On rare occasions, like using the Hydro Hot for heating the coach, 120 to 135 AH's. So, I concluded my bank was more then sizable enough to get me thru the night, and even a few days of less the full recharge if needed.
I guess that's the good news, that the Samsung is consuming in the same ballpark park that it always has.
Which then, leads me back to the Batteries are just not holding up in AH output capacity:)!
By the way, lowest I saw on Absorb cycle today (Got interrupted and did not see any readings the last 30 mins of the 4 1/2 run, was 18A. Now in Float at 12A.
I'm going repeat the test once it's cool enough for us to shut of shore power (On now for the AC:)!). And hope to time it better and see the Absorb Amps when it like in 4H 15 -20 M into the cycle. Suspect then I'll just set it back to 2 1/2 or maybe 3 hours for Absorb.
MW - I've enjoyed your posts. Cranky? Well if you say so. And by the way, were you near Mesa, AZ Costco in that chariot of battery powered wheels? I almost got run over twice by the same shifty eyed gent. Perhaps our paths crossed:)!
And again, my thanks to all of you for your help. And for the OP for letting me tag along on this thread:)!
Best to all,
Smitty
