Barezzi:


How can I buy one?
Cant seem to find the new sexy ones on amazon or ebay...

ilenaira:

To which are you referring, the CC? I can send you an e-mail address. There'd be a mark-up if you go via ebay/amazon anyway. It would better to go direct. That's how I got mine cheaper compared to some of the shocking ebay/amazon prices.

ilenaira:


@kiekie1, the CC is made by epsolar (http://www.epsolarpv.com/en/) and it is MPPT. My Panels are poly but the set to complete the system design will be mono (300 watts, SunEdisons). The mix will allow me to experiment with the mono vs poly debate especially when applied to a climate like ours rather than North America / Europe, etc. I'll post the findings.

Another company you may be interested in is mppsolar (http://www.mppsolar.com/v3/). My inverter is from them and they've been very helpful with technical advice on how to rectify what the plonker that I entrusted with its care, did to it.

salam12:


If batteries less than 6 months old, you stand the chance of adding batteries of same spec to existing string.
Meanwhile does your controller has manual and can you possibly share it picture. Also, what is your battery specification as regard cycle voltage and float setting.

samnaija:

my batteries are emerson (12v 200ah) x4 , their float voltage is 13.6v/units. The charge controller is wellsee, (40amps 40v). in the manual full charge cut 54.8v, low voltage cut 42 v. i will attach a pix .thnx again

samnaija:
@barezzi

the guy that did the wiring reasoned that since my battery bank is 48v so the panels should be similar.
I checked my manual for the cc, solar panel input 80volts. advice pls.@

bode4real:
DIY stuff with total support from BodeJohn. 30amps china Mppt CC for 960wats panel

bodejohn:
Dear friends, does anyone here know how I can change the number of batteries in this Tristar MPPT CC?
I entered the number 8 myself a couple of months back but I can't seem to figure how I did it back then.

NB. The float voltage setting is for a 36V battery system.

Barezzi:

Dunno if this will help...Dip switch settings?? See attachment.

Barezzi:

30A cc using 960W panels on a 24V system?
Looks like u are overloading ur CC.
Your CC cannot handle an array greater than 720W (30A x 24V)
Hooking up a 960W array can drive the current up to 40A, but ur CC will limit it at 30A.
If ur peak current was 24A, I can safely deduce that ur 960W array has never produced peak power up to 600W.

Check ur installation... ur panels are directly on the roof. excess heat?

bodejohn:
Dear friends, does anyone here know how I can change the number of batteries in this Tristar MPPT CC?
I entered the number 8 myself a couple of months back but I can't seem to figure how I did it back then.

NB. The float voltage setting is for a 36V battery system.

RipVanWink:


that #8 u see there doesnt mean 8 batteries..i use same cc as u..the cc has 1 to 8 dip switches u select based on ur batt type, flooded, sealed etc....on mine i selected dip switch 3, so 3 is showing on my CC

ilenaira:

I can send you an e-mail address. There'd be a mark-up if you go via ebay/amazon anyway. It would better to go direct. That's how I got mine cheaper compared to some of the shocking ebay/amazon prices.

bode4real:

U ar very correct on d CC limitin my amps but I also kno dat i cant get d whole 960w due to losses. Av achieved 766w on peak power. I wil plan to increase d CC to like 45 or 60amps. Also I wil get mountin rails to lift d panels up a bit from d roof.

JUO:
his cc is advance pwm not mppt. I may be wrong but any mppt with the 80v Max is not mppt and will Not do the work of mppt. there are Chinese mppt with 150v Max input.

GeorgeD1:
all,

happy new year to all the good people in the house.
2015 is promising to be a sun-filled year already as my system keeps smiling
on float everyday.

wao! so much to catch up on and so much updates to deliver

will upload details of my yearly turn around battery maintenance carried out last
december in my next post.

i thank you guys for keeping the renewables flag flying all this time.

cheers!

abunafiu:


Longest time sir ,

Wishing you a prosperous 2015.
the thread really missed ur input.

durodee:
Hello house! After using inverter for about 3 years (Sukam 1.4kva, 24v, 2 200amp Luminous batteries ) I decided to upgrade to Solar energy. I was able to get 10 used Full Rivers 12v 200amp batteries, 6 used 180w poly panels ( initially imported from USA, ?24v, 72 cells , no other information available ) and a new 3000w 24v, 50amp charger , 3-1 inverter -charger - charge controller.
I connected only 6 of the batteries to the panels and 4 to the old Sukam.
After installation of the panels (all in parallel ) , the inverter displayed the panels as 24 v and a Max charging current of 20 A so far.

My main questions are:
(1) would it not be better to connect the panels as a 2×3 48v system ?
2) will the new combination not drop the charging capability of my system?
Kindly see the attached pics, all advices welcome!

Barezzi:


1. No, that's a very bad idea, I'm sure the cc in ur 3-in-1 unit is a PWM cc. The voltage band is 30-32Vdc, so u can only connect them up in parallel (24Vdc). Also, the Voc of a 24V panel is above 35V, hence u cant connect them in series...[ur CC has a max Voc of 60Vdc]
2. Such a combination will blow up the cc...

samnaija:
guys salam 12, barezzi, juo thanks for all your inputs it as made me take more attention to my system . i have finally detected the fault , my batteries were not being charged adequately because of a faulty charge controller. the wellsee cc brings a very low voltage dragging down the battery volts. house is the away to protect charge controllers from being damaged, because my second battery bank cc was also fried and this makes the second time around. any good recomendations on cc and price would be appreciated. to the house generally very helpful forum...

durodee:


Thank God for small mercies! if anything blows up now, nah to almost get heart attack be that! Lol!

samnaija:
guys salam 12, barezzi, juo thanks for all your inputs it as made me take more attention to my system . i have finally detected the fault , my batteries were not being charged adequately because of a faulty charge controller. the wellsee cc brings a very low voltage dragging down the battery volts. house is the away to protect charge controllers from being damaged, because my second battery bank cc was also fried and this makes the second time around. any good recomendations on cc and price would be appreciated. to the house generally very helpful forum...