cell7:
Pls how reliable is POWMR mppt charge controller. Who amongst us has used it?

I have had Makeskyblue (which PowMr's design, form factor and features are basically the same) for seven years and counting...

So buy and flex on

Charging my ebike battery

ojeysky:


So for 16s it's 16x5000?

Yes sir.

I thought about this too but laziness...many thanks for sharing your insights.

NiyiOmoIyunade:


I create my own Y branches ..........

Farmicare is modified.

olopan:
I think famicare is modified sine wave inverter but I am not 100% sure just like the mercury inverter using two battery

dejidotun2000:
Good day house.

Please how does the victron clone fanpusun mppt charge controller with a VOC of 100V react to a PV input voltage in excess of 100V (say 105V).

Will I see white smoke or will the CC just stop charging the battery.

I am tempted to rearrange my array of 6 X 270W Yingli panels with a measured VOC per panel of 34V from 2s3p (VOC = 68V) to 3s2p (VOC = 102).

Progress was made by those who choose to think/see/do things differently.
I urge you to ignore the nay sayers and put this to test.....

Its a cheap cc, if it fails the test.we would have gained knowledge as a community�, and you use the oppurtunity to upgrade to another cheap ass cc..powmr that has VOC of 150v @ 48v setup.

How accurate is the voltage reading of the cc?. It might be off by a few point + margin of error. Extra 5v shudnt fry it

dejidotun2000:
Good day house.

Please how does the victron clone fanpusun mppt charge controller with a VOC of 100V react to a PV input voltage in excess of 100V (say 105V).

Will I see white smoke or will the CC just stop charging the battery.

I am tempted to rearrange my array of 6 X 270W Yingli panels with a measured VOC per panel of 34V from 2s3p (VOC = 68V) to 3s2p (VOC = 102).

How close is the 34v to the actual nameplate rating? If it's same then you can go ahead else I expect nameplate rating will be more than 34v so don't try it unless you don't mind lossing the CC.

Quality tier 1 panels only.

Talesun 400w solar panel - 82k

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To order now

Keep the orders coming.
Dm for spec sheet. We deliver anywhere

Lagos traffic can't stop us from delivering your order. Dm to order now.

Talesun(Thailand) 400w solar panels enroute to loading bay.


Your one and only reliable source for quality tier 1 panels.

Call/chat - 08117398294

en0uwem:

Okay thank you. I'm now waiting for earthrealm to reply me so they can connect me to a better installer

So my contact said he tried severally to reach you today, as per set appointment twice, but your line was not reachable. ops aborted.

So the floor is still open to any other person willing to help OP.

fangpusun 50a 12v/24v mppt charge control with display
60k
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fangpusun 50a 12v/24v mppt charge control with display
60k
call or WhatsApp : 0703 zero 4836 5 zero

It's another one, the cell build phase gets easier with each build

Final look

The hardware limit is the max voltage rating of the capacitors in the CC - most good manufacturers publish what theirs is. If you cross that limit, the capacitors blow out instantly.

Once the break limit is known, backing off a few voltage points for safety is a trivial matter for any who knows what they are doing.

It also helps that in the tropics, most locations will never have STC conditions so this adds to your margin of safety.

What I do when pushing panel and CC limits is to measure field values based on the ambient for that location, work back to max voltage on the coldest possible clear skies day for that location and then use these value as my not to exceed basis.

earthrealm:


Progress was made by those who choose to think/see/do things differently.
I urge you to ignore the nay sayers and put this to test.....

Its a cheap cc, if it fails the test.we would have gained knowledge as a community�, and you use the oppurtunity to upgrade to another cheap ass cc..powmr that has VOC of 150v @ 48v setup.

How accurate is the voltage reading of the cc?. It might be off by a few point + margin of error. Extra 5v shudnt fry it

dollarnaira:


He was trying to say that d 1000w is the maximum, usable only for just few mins.

500w load can be run continually for as long as your battery can carry you.

That is, never run ur inverter too close to its capacity e.g a 1000w is safely run at 500w etc

Hope this is ABC enough?

Infact it’s really 123 enough, thanks very much

funshyboi:


Infact it’s really 123 enough, thanks very much

You are welcome.

Nice job..., can you send me your contact??

Or alternatively reach me on O 8 I 3 8 I 6 8 nine 3 6.

Thanks.

ewizard1:
Available!!!

ewizard1:
Super Active Balancer for Li-ion/Lifepo4 Cells

Balance current up to 2A. @ N5000 per Cell

Does this work for 14s Li-on?

Edited

ojeysky:


So for 16s it's 16x5000?

ewizard1:

Yes sir.

Ha! Odiegwu

earthrealm:


Progress was made by those who choose to think/see/do things differently.
I urge you to ignore the nay sayers and put this to test.....

Its a cheap cc, if it fails the test.we would have gained knowledge as a community�, and you use the oppurtunity to upgrade to another cheap ass cc..powmr that has VOC of 150v @ 48v setup.

How accurate is the voltage reading of the cc?. It might be off by a few point + margin of error. Extra 5v shudnt fry it

Talking about VoC, with these recent 400 Watts, 440 Watts solar panels flying around, how many of it do you think will be in series to handle a 48v set up? 2s, 3s?

Thinking of including those in the array, so I have to be sure before I fry those CCs.

Also @ Ojesky, @ Níyì.

Penuelseun:
It's another one, the cell build phase gets easier with each build

@bolded. This is true.

You should see how the build version improves with each subsequent pack.

The last two packs saw the incorporation of nickel strips, spot welder and fish paper. Thinking of adding a knife fuse or glass fuse and also brainstorming on including communications port with subsequent builds. Of course the latter will mean upgrading from the current BMSes.

Is that 48v pack? And did you use resistor wire fuses for the positive poles of each cell?

Star plus tubular batteries still available, #110,000. Call/WhatsApp us on 08168986461

1000w solar street light still available, #45,000. Call/WhatsApp us on 08168986461

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ceaser:


Talking about VoC, with these recent 400 Watts, 440 Watts solar panels flying around, how many of it do you think will be in series to handle a 48v set up? 2s, 3s?

Thinking of including those in the array, so I have to be sure before I fry those CCs.

Also @ Ojesky, @ Níyì.

Where is the nameplate ratings?

ceaser:


Talking about VoC, with these recent 400 Watts, 440 Watts solar panels flying around, how many of it do you think will be in series to handle a 48v set up? 2s, 3s?

Thinking of including those in the array, so I have to be sure before I fry those CCs.

Also @ Ojesky, @ Níyì.

IfVoc of those panels is more than 50v, then stick to 2s..if less 3s. i actually dont see the comparative advantage of those 500w panels. my sweet spot for panels is 300w to 350w, its portable enough to fit in a big suv and not too heavy to maneuver during installations

zeestone99:
Lagos traffic can't stop us from delivering your order. Dm to order now.


Talesun(Thailand) 400w solar panels enroute to loading bay.


Your one and only reliable source for quality tier 1 panels.

Call/chat - 08117398294

Tested and trusted. Ordered some units, delivered promptly. �
Panels arrived intact.

ojeysky:


Where is the nameplate ratings?

I've not even spotted any nameplate of those panels. But if 270 Watts can have around 35v VoC, I'm just imagining what those ones will have.

earthrealm:


IfVoc of those panels is more than 50v, then stick to 2s..if less 3s. i actually dont see the comparative advantage of those 500w panels. my sweet spot for panels is 300w to 350w, its portable enough to fit in a big suv and not too heavy to maneuver during installations

I think I'm with you on the bolded. Except of course I am ready ti get a pick up truck to ferry them. Then get a very experienced installer to mount those large weights.

ceaser:


I've not even spotted any nameplate of those panels. But if 270 Watts can have around 35v VoC, I'm just imagining what those ones will have.



I think I'm with you on the bolded. Except of course I am ready ti get a pick up truck to ferry them. Then get a very experienced installer to mount those large weights.

Usually around 50V, Most compensate with Higher Current, not necessarily high VoC,

ceaser:


I've not even spotted any nameplate of those panels. But if 270 Watts can have around 35v VoC, I'm just imagining what those ones will have.



I think I'm with you on the bolded. Except of course I am ready ti get a pick up truck to ferry them. Then get a very experienced installer to mount those large weights.

My 390w has Voc of 48v so it's safe to work with that for the 400w

ojeysky:


My 390w has Voc of 48v so it's safe to work with that as the for the 400w

Your system is 48v system and your panels is 2s config, yes?