generationz:


Hello I was told you assemble lithium batteries please can I know how the packs and how much they are?

ojeysky:


Well it's better he uses the sales address, that way it gets to peggy and any other sales staff. Anyway you may copy Peggy as well.

ojeysky:


Contact manufacturer directly at sales@mppsolar.com, you get at least 100USD savings in total compared to the price on AliExpress

Dam5reey:


Please explain.. further..

Dam5reey:


Not worth it
180k for 80AH 12V

ojeysky:
Anyone know of any app/software that I can use to get better information from the MPP solar GK series? The watchpower mobile app is quite basic, can't even access historical data/graph through it.

mank1234:


Yeah. It's zero. My dream inverter. Major appeal is that between mains input voltage of between 100 and 270v you get same output of 220v; that is if you dont use bypass mode. No need for voltage regulator.


However, I read comments that it consumes more than 100w when on mains due to the AC-DC-AC conversion (double conversion loss). Not really a problem as our electricity tarrif is low.

totalgreen01:
hi,
ZERO IS ZERO O! tested

NiyiOmoIyunade:
This is a 4-5kw unit yes? I am interested to see how the unit performs when switching say a 3.5kw load from mains to inverter battery.

The question is whether or not one will experience lagless transfer and no failure when switching a large load on a regular basis?

duwdu:
The summary of this post:

I've had a battle scare with my PIP-5048GK transformerless with battery-less-support inverter I just installed during the early hours of yesterday; but it's all good now.

How it went:

I had been on my brand new 24v 3KW/4KVA VIL Power Star-Light inverter for just under a year, using the 1.8KW max PV loadable on it out of my available 3.2KW. Then the bugger crapped out on me two days ago, in the dead of the evening. The seller wouldn't provide support, stating that the original merchant went under, or something to that effect. Meanwhile, I'm totally off grid and the past two days have had autonomy weather forced on my part of Lagos...

So, I was forced to have to install and deploy my PIP during the very early hours of yesterday, even as I was not quite ready with the PIP (still expecting the second of two 600/800vdc SPD's I learnt would be ideal for the system, one each by the PV array and inverter ends, particularly if the distance between is considerable.)

I went ahead anyways and also reconfigured all of my 10 PV's in series for a possible combined 400V, or thereabout. I also reconfigured my meager 4.8KWh of batteries to 48 volts. Then waited for dawn — and the sun — to show, starting from the next hour.

At about 7:30am, and without any batteries connected whatsoever, the PIP came to life with about 100 watts of power. No load yet, of course, because of the still sun-starved weather. It was beautiful, a successful test of the battery-less feature of the unit. Of course I would have to charge my batteries once the weather improved...what with the past two days of forced autonomy from the glorious sun!

Fast forward about two hours. I proceeded to shut down the sweet system, then installed the batteries. About ten minutes after system restart with batteries now in, the system started bleeping hysterically and shut down...there had been a fault with the fan! (Attached.) The system wouldn't stay back on and consistently beeped and threw "Fault 01 - Fan is locked when the inverter is off." According to the User Manual, the solution was to "Replace the fan."! I entered panick mode...

At about 2pm, I quickly wrote to MPPSolar, describing the problem and lamenting 'how embarrassing the unit became within the first two hours of its deployment and that how could that be? Please rush me a replacement fan, expectedly in addition to other urgent remedies you may suggest. Thank you.' Of course Taiwan had by then closed for the day and gone to bed; I'll have to wait another day...

Still in panick mode, I got in touch with an occasional but very reliable supplier on here, asking for a low price "túké-túké" 48v inverter? (Oh Lord, I'll have to reconfigure my panels again for a max 150v system?!) But there was none. And so I went to bed last night, power-hungry.

I woke up this morning to a waiting email response to me from MPPSolar in Taiwan. Ọpẹ́ o. One of the steps I was advised to take was see whether there had been an obstruction to the normal operation of the fan by some internal wiring harness? I quickly jumped on that one.

What I saw was that, in the process of installing the batteries' +ve lead into the inverter, I had inadvertently worked a clear acrylic flap adorning the top of the fan housing, INTO the fan housing, thereby obstructing the normal movement/rotation of the fan! By 8am, I had corrected the issue and the F01 fault was cleared. The PIP-5048GK has been flawless ever since. (Screenshot attached.)

Morals of the story:

My brethren, please know what you're doing while DIY'ing. The specs for some of our gadgets are precision based, even if the manufacturer has not specifically stated so. In this my specific case, the wire girth specified 38mmsq. I crimped the 50mmsq cables I had at hand and sort of worked them in. After all, one wire gauge up will be even better for carrying current, right? Well, I applied this teaching in a half educated manner and paid with aggravation.

So please be guided as necessary.

Good luck, folks, and thanks for all the education and help on here and elsewhere.

........
P34c3
.....
...

Saipro:

It's a pretty straightforward connection. Literally plug-and-play. But that's not the contended issue.


I disagree on that. [size=30pt][font=Lucida Sans Unicode]He's charging within limits[/size][/font]. Just that things can go wrong without warning. And with the low drain rate, imbalance is unlikely too. That doesn't mean his contraption is safe

earthrealm:
While on this rechargeable fan issue.
The batt in mine crapped out.scoured the market..no luck.
Saw on AliExpress..but price is high and shipping another wahala.
This is a lithium battery, so does it imply that the fan has an internal bms??.
Am guess 3 cells in series..and probably 1 or 2 has died.the fan rarely worked up to 2hrs when fully charged....unlike it's lead acid brothers

Who can help me get a replacement??

hotdealz:
I think some cells were dead before I started using them cos I didn't throw any cell away from the dead laptop battery as I have no means of testing anything.

Also, I only charge it for 5hours whenever it needs to be recharged which is mostly once in a week cos I only use the fan at night when there is no nepa light for the ceiling fan and that 5hours charge can carry me for about 5 nights at average speed before the fan stops working and needs to be recharged.

I have been doing it that way for 3 months plus now. Unless if charging it for the 5hours can raise the battery voltage above the 12.6v maximum. But, the battery has never for once gotten hot. Can it still explode without getting hot?

Where do I get a volt display so I can always put it off when it gets to about 12.4V? Or is there any device I can connect to it that would automatically stop charging once the volt gets to the 12.4V?

hotdealz:
Is the BMS the small board inside the laptop battery? I always cut it off and throw away. I'm a newbie in this.

There is no way I can know if it's fully charged or not so i stop charging after 5hours regardless of if it's fully charged or not. Then use it till its completely down before recharging for 5hours again.

hotdealz:
What is BMS?

Well, below is the strange way I connected lithium batteries from "dead laptop batteries" to my rechargeable fan. The fan can now blow at very high speed for more than 24hours non stop. It's been working like that for 3 months now, no issues at all and I didn't use BMS anywhere.

I will never use that rubbish they call battery that came with the fan again! I wondered why they use the battery in the first place. Something that barely blows for 5 hours at the lowest speed.

laposta:
From my little experience, each pack in series puts out the total current draw and a fraction of the voltage. This means that the each 1s80p you have will put out 3.7v (nominal) and 60A (BMS capacity) and the 14s will put out 14x3.7v, 60A.

Your small wires are still good though as each cell will put out 60A/80cells which is less than 1A.

dgr8truth:

Please test the bms to make sure it will do its work. Especially the overvoltage protection.

GeorgeD1:


whoa! totalgreen! you finally did it bro!
congrats and well done for keeping the dream alive.
cheers!!!

earthrealm:


how would you know, if one batt or even a couple of batts go bad??, in your bank, how many need to go back before the effect becomes noticeable

Saipro:

I really need to know how you got your welding done.
And to the house, I need a DIY-grade spot welder

babaegun:


Hello Totalgreen01,

Please fill us in on the whole setup and the number of man hours involved. The price of those batteries and the best source to obtain them.

Will like to give it a try.

Cheers.

wirinet:

Wow. What's the total capacity of your set up and how many s (series). Hope you are using a good BMS, preferably Batrium.
Proud of you.

Let me tell you some observations and suggestions;
1. Those wires to individual batteries are too thin, you need thicker wires.
2. Arrange your wires in a more orderly manner. It's safer and neater.
3. Look towards using spot welding. Soldering degrades li-ion batteries and sometimes loosens creating weak joints.

earthrealm:


omo!!!...guess it took you many days to line up all the batteries.
whats the total bank capacity?

totalgreen01:
Enjoying my li-ion DIY
will update soon

earthrealm:


i think you are a lil confused, the installer must have used 6mm for positive, then 6mm for negative
THE chart shows you need 16mm at 3% loss, i would advice you to split your panels into 2 sets of 6 panels each 3s2p, used a 10mm dual armoured cable to run each string, and used a combiner box or properly sized circuit breakers to marry/terminate both strings.
zeestone and kiekie have such cables in stock...
http://www.solar-wind.co.uk/cable-sizing-DC-cables.html


finally at this stage, it should be obvious to you that your installer doesnt have a clue of what he is doing, get an installer from this forum to go qaqc ur setup and modify it accordingly, zeestone /frankie/ niyi etc are ever ready

Braaad:
Hello good people of this forum, please, I urgently need a link to buy Tesla power wall here in Nigeria.

I've tried some companies including PSC solar, they don't have in stock.

I would really appreciate a link to buy it here or to get it directly from the company abroad.

Any help is highly appreciated.

PS: if there is any other alternative of comparable quality to the power wall, I'd like to know.

Thanks in advance

duwdu:
Hello, my people;

My own eagle has landed in Naija and hopefully will be delivered to me soon. (Tracking manifest attched.)

It is an MPP Solar's PIP5048GK, as can be gleaned here: https://www.mppsolar.com/v3/pip-gk-series/

I'm super excited already; please wish me the best with it, house, as I keep us posted.

........
P34c3
.....
...

GeorgeD1:
after rain, comes shine.

for those peeps here in the south-south, it seems happy times
are finally here after all the weeks of never-ending rainfall

kiekie1:
BONANZA SALES !! 27th to 5th Sept !!!

Trojan SAGM 06 315 (Solar AGM Battery 6V 315Ah)

PRICE: ₦160,000.00 N148,000.00

Quick Overview
Model: SAGM 06 315
Battery: AGM VRLA Maintenance Free
Capacity: 6V 315Ah / 20Hr Rate

Cyclic Use: 30% DOD - 3250 cycles
Cyclic Use: 50% DOD - 1750 cycles

Dimensions (LxBxH): 296mm x 176mm x 347mm

Terminal Height: 385mm

Weight: 43kg

Absorbtion Charge: 14.40V, Float charge: 13.5V mistake here o, its 6v right?

Color: Maroon (case/cover)

Material: Polypropylene

Country: United states of America

Contact,
Smartcell global services
081-350-31951