Charge controller charge settings

Discussion about the MX60 Charge Controller

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jackofalldaves
Forum Junior Member
Posts: 1
Joined: Mon Mar 30, 2020 12:21 pm
My RE system: 5 kw array, 2 banks utilizing VFX3648 inverters and MX60 charge controllers, 7 batteries

Charge controller charge settings

Post by jackofalldaves » Mon Mar 30, 2020 12:34 pm

My question is about where/how to set charge points since my batteries are old and have lower capacity etc.
The controllers keep trying to charge them but only reach 78% and is taking away from the system because it won't stop trying to charge them.
I am due for new batteries but for the time being I need to adjust the settings or manually turn the charge controllers off after late morning. Any advice is welcomed thanx

fcwlp
Forum Guru
Posts: 295
Joined: Wed Jan 22, 2020 9:40 am
My RE system: GS8048A, FM80 w/3,600 W PV Fixed, FM80 w/2,700W on Zomeworks tracker, Mate3, 24 Trojan 2V L16 1100AH @ C20, Grid-Tied with Kohler 14RESA LPG Generator and MEP-803 Diesel if needed
I also install and maintain grid-tied and off-grid systems, details will be given for these system if required
Location: 80 miles NE of Phoenix at 5500'

Re: Charge controller charge settings

Post by fcwlp » Mon Mar 30, 2020 2:56 pm

It would help to have a few more details on your system. What is telling you the max charge is at 78%? Seven batteries is an unusual number, have you pulled one from the string?

sodamo
Forum Czar
Posts: 775
Joined: Mon Apr 03, 2006 1:55 am
My RE system: Totally off grid - Hamakua side, Big Island, Hi

36 Trina 280 & 16 Phono 250 in 48 volt array (fixed) 14080w
Radians GG8048/GS4048 w GSLCs
4 FM 80 charge controllers
Hub 10.3
FNDC w/3 shunts
Mate 3s
OpticsRE - MMKL - Ninole Hi
12 SimpliPhi 3.8
14Kw Kohler 14RESA Propane

Charging Only
2FX3048T
Hub
FNDC. - shared shunt feeds from Radian FNDC
Mate 3s
10Kw MEP 803a Military gen

Honda EU7000i

Davis VantagePro2 Wx Station
On line at: https://www.wunderground.com/dashboard/pws/KHININOL2
Location: Ninole, Hi

Re: Charge controller charge settings

Post by sodamo » Mon Mar 30, 2020 4:31 pm

Just curious, but what is point of turning the CC off at late morning?
David
Please visit http://vacation.ninolehawaii.com

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