why battery voltage drop much at bigining ?

[zolar]

thanks paul for your post ,

[Sunking]

Wow Paul just looked at JMD. Last time I was there a few years ago a USD > JMD was $91, and this morning $126. What is causing it? Last time I looked in October employment was lower, exports and tourism were up.

Anyway start a new thread so we do not hijack this one. Not even sure you can do Grid Tie Jamaica legally although that does not make a lot of difference up there. I am a bit surprised as Panama and Costa Rica economy are booming since Trump took office in USA.

[paulcheung]

Weh yuh ah deal wid? Weh yuh ah seh? Mi aright Panama.

Hi Derrick
How are you. I am in Jamaica suffer the high devaluation on the currency. any advice on the grid-tie system? I am considering change my most system to grid-tie and don't have a clue about the grid-tie inverters. The two bank of batteries are on their last breath. namely on support system.

[Sunking]

Also never parallel batteries if you can avoid it. Take it from me, the IIdiot who have learned a very expensive lesson.

Weh yuh ah deal wid? Weh yuh ah seh? Mi aright Panama.

[paulcheung]

thanks mike90250 I am happy see you again,,,
and for the second system I am attending to make its :
24 v system , connecting 4 panels parallel with Y connector each 24v 320watt about 7 meters to the 60amps charger ,from charger to batteries about 3 meters cable long about 2 meter from batteries to a3kw inverter which output is 220v ac .
( NOW about the AWG actually I don't know , cuz here we are using mm , and when I compare between them in internet tables its not as we used to know it .
BTW mike and all expert PLEASE I know I shouldn't ask this Q,,, specially after all this time and some few information I got BUT :
as we know to find the amps is watt divided by voltage , but in solar people divide the load watt by system voltage ,, WHY NOT divide it by ac voltage since its fitted now after the inverter and working on 220 v. ( don't tell me cuz its the amps storage )

Why do you want to wire 4 panels parallel if you have a true MPPT charge controller? I would just wire all 4 in series or 2 series and 2 series parallel if the 4 panels' total voltage is higher than the MPPT controller can handle.

Also never parallel batteries if you can avoid it. Take it from me, the IIdiot who have learned a very expensive lesson.
Best wishes.

[zolar]

oh.,,, ,
thanks mike ,
sorry for the names but I meant charge controller ( the device wich installed between the panels and battery bank)
any way about type of battery , that's something to be programmed even for only 1 charge controller , but other things I thought it would be done automatically, regardless the different in type or brand of charge controllers.
that's another point to be concentrate on.

[Mike90250]

> but what you mean PROPERLY ADJUSTED .....

Because you called them regulator 1 & 2. I've no idea what that is. Now it's solar charge controllers. They still have to be set/adjusted/programmed to match the charging requirements for your battery, which can vary between brands and style ( Flooded, GEL, AGM ) You can buy top of the line controllers and not set them up properly and ruin your batteries in a month.

[zolar]

thanks a lot mike , ( so the amount of amps will increase but the voltage wont be increase ) right ?
but what you mean PROPERLY ADJUSTED , if you connect each 4 panels to 1 charge controller and you have output from 3 charge controllers , all 3 (+) terminals will go to battery (+) and the same for (-) , so where is the unproper could be?

[Mike90250]

I'm going to take a stab at this - Generally, it's safe to connect several properly adjusted charging sources to a single battery bank.

[zolar]

thanks a lot suneagle , got another question please but , I don't know if you will understand me ,,,, I have 2 regulators ( lets say regulator1 , and regulator2 now I got output wattage from regulator1 (-, +) I need to connect them to my battery bank , and an output wattage from regulator2 (-,+) , also I need to connect them to my battery bank. the question is ( is it right , to connect both + from both regulators going to + of battery ,,, and both -- from both regulators going to -- of battery ) or the voltage will be doubles and its not correct?
SO THE QUESTION IS : CAN I CONNECT POWER FROM TWO REGULATORS OR MORE TO SAME BATTERY BANK?

[SunEagle]

may I have any advice please which 1 is better : Uni-T B4Q094 UT210E

Signstek UNI-T UT210E

UNI-T UT210D

all of same price , but really need this advice ,thanks in advance

It looks like the UT210E is newer then the D model but IMO it is a toss up as to which to get and how much you want to pay for the meter.

[zolar]

may I have any advice please which 1 is better : Uni-T B4Q094 UT210E

Signstek UNI-T UT210E

UNI-T UT210D

all of same price , but really need this advice ,thanks in advance

[zolar]

thanks a lot suneagle and bcroe for explaination,
and yes suneagle the modle now is 202A and as I said in modle details not written to read sc amps by clamps that's why I will go for 210 cuz as I saw it can raed dc amps using clamp , and btw brother no need for apologize , ( master never apologize to trainee ) , its more than enough for me that you reply and confirm the right information

[SunEagle]

[QUOTE=bcroe;n387060]

Yes that one looks nearly identical to mine. A bit more costly, I think the 202 will not do clamp on DC.
Bruce Roe

Yeah the 202 is only an AC amp meter. I got the model number wrong and I need to apologize to zolar if I sent him on a wild goose chase.

[bcroe]

[QUOTE=SunEagle;n387043]

Scratch what I just said. I have the UT203 meter not the 202. Sorry for the confusion.

Yes that one looks nearly identical to mine. A bit more costly, I think the 202 will not do clamp on DC.
Bruce Roe