Absorb set to 55.2v. Classic goes from Bulk to absorb at 54.8v

Started by 5 Minutes 2 Midnite, July 11, 2017, 04:00:29 PM

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ClassicCrazy

Thanks Vic,
Yes now that you explain it I do remember reading about this in the past.
I guess it just takes a bigger load to drag the resting voltage down to let it get all sorted out .
Looking at it now hours later it is in Float and holding the system amps at zero but feeding the loads so it is all good.

I was watching it closer today since I had needed more power. Since the 48v lithium and 24v lead acid share the same combiner box with a split buss bar - I was able to take a string of the PV and switch it over from 24v to 48v system quite easily - all the strings are the same so no problems there. I just wired from bottom input of one breaker string to another breaker on the 48v buss bar. All I need to do is switch breaker to 24v off and breaker to 48v on . Simple !  here is my first attempt at using paint to make illustration
Larry



system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal for 24v pack , Outback 3524 inverter
system 2
 5s 135w Kyocero , 3s3p 270w Kyocera  to Classic 150 ,   8s Kyocera 225w to Hawkes Bay Jakiper 48v 15kwh LiFePO4 , Outback VFX 3648 inverter
system 3
KID / Brat portable

Vic

Hi Larry,

That is a neat trick with the Combiner.

I will not mention what we do sometimes,  in switching things around in the Combiner,   HOT ...

Have fun,   Vic
Off Grid - Sys 1: 2ea SW+ 5548, Surrette 4KS25 1280 AH, 5.25 KW PV, Classic 150,WB, Beta Barcelona, Beta KID
Sys 2: SW+ 5548s, 4KS25s, 5.88 KW PV, 2 ea. Classic 150, WB, HB CC-needs remote Monitoring/Control, site=remote.
 MN Bkrs/Bxs/Combiners. Thanks MN for Great Products/Svc/Support&This Forum!!

ClassicCrazy

Gotta make life interesting eh Vic ?

Well I did this hot - at least the one connection was - but I tried to be very careful.
The Midnite Din rail breakers do not clamp down on stranded 10 gauge very well - kept coming out - at least the type wire I was using - maybe more fine than course . I finally gave up and found a small piece of 8 or 6 gauge to use on it .

I have some of those insulated screwdrivers now too - so used those - makes it a little bit safer.

Larry
system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal for 24v pack , Outback 3524 inverter
system 2
 5s 135w Kyocero , 3s3p 270w Kyocera  to Classic 150 ,   8s Kyocera 225w to Hawkes Bay Jakiper 48v 15kwh LiFePO4 , Outback VFX 3648 inverter
system 3
KID / Brat portable