100 amp charging source vs 2 grp31 AGM
My friend plans on running an obscene stereo in his new box on wheels acquisition. He wanted a dedicated power source for it able to power it for a respectable amount of time from battery power alo...
Forum Discussion
BFL13,
I had forgotten to mark/set 14.7v unloaded before beginning recharge, and kind of guessed at the desired setting. I did max it out initially to see if more than 94 amps were possible, and after no increase, I backed it off to what I assumed was around 14.8v.
When I went and checked at the ~ 1 hour mark I found the batteries accepting 75 amps at 15.3v, and then lowered voltage to 14.8v at the battery terminals and amps dropped to 61.7, and they tapered pretty quickly from that point.
Very little degree sweep between 14.7 and 15.3v. Dialing in voltage precisely is much more difficult than on my Meanwell with 10 turn voltage pot, as expected
Unloaded max Powermax voltage was 15.56v.
At 5 hours into recharge, they are taking 1.21 amps at 14.71v.
Mex, your Lifeline had how many cycles on it when you got those results?
Is it Lifeline's 64 LB 105 AH with 600 CCA group 31, or their 74Lb 125AH 650CCA group31?
I am curious as to AGM characteristics/ behavior during the break in during the first few cycles.
Care to elaborate how AGM's and Flooded initial breaks in's differ?
Lets assume it is the Higher $$ agms vs 6vGC's, and not those AGM saying 0.3C max or compromised 12v 'deep cycle' floodeds, but elaborate on those if you want.
I had forgotten to mark/set 14.7v unloaded before beginning recharge, and kind of guessed at the desired setting. I did max it out initially to see if more than 94 amps were possible, and after no increase, I backed it off to what I assumed was around 14.8v.
When I went and checked at the ~ 1 hour mark I found the batteries accepting 75 amps at 15.3v, and then lowered voltage to 14.8v at the battery terminals and amps dropped to 61.7, and they tapered pretty quickly from that point.
Very little degree sweep between 14.7 and 15.3v. Dialing in voltage precisely is much more difficult than on my Meanwell with 10 turn voltage pot, as expected
Unloaded max Powermax voltage was 15.56v.
At 5 hours into recharge, they are taking 1.21 amps at 14.71v.
Mex, your Lifeline had how many cycles on it when you got those results?
Is it Lifeline's 64 LB 105 AH with 600 CCA group 31, or their 74Lb 125AH 650CCA group31?
I am curious as to AGM characteristics/ behavior during the break in during the first few cycles.
Care to elaborate how AGM's and Flooded initial breaks in's differ?
Lets assume it is the Higher $$ agms vs 6vGC's, and not those AGM saying 0.3C max or compromised 12v 'deep cycle' floodeds, but elaborate on those if you want.
