DeathToBEGGARS:
i have been looking for it for close to 30mins and cant find it

ojeysky:


Max Charge current is 190A have not checked what the AC max is(though I won't need that much hence I didn't bother). Manufacturer claimed 50w consumption but will see what it will be in reality.



Not yet,.still work in progress

funshyboi:
Good morning guys
I have been using this lead battery (car battery)for a while now but no matter how long I charge it, it doesn’t get to 100% it floats btw 96-100 percent during the day but at nights it drops to 80%. Is there any explanations for this ?

Ojesky willmaria kiekie1 adrusa NiyiomoIyunade mctfopt will really appreciate your contributions

earthrealm:


Just wondering what size of gen will power the Deye, at 195amps and 50volts.
Thats already 10kw already.
I believe this charging current is adjustable. Have you tried powering it on gen, or if on grid checked the wattage its consuming while charging

ojeysky:


Bro that stuff is something else o, you can actually set max power for the inverter to take from either grid or gen up to 8k and as low as 1kw and ofcourse there is also the option on whether to charge with gen source and at what time periods..., max charge I am doing at the moment is 50A and it's generally via solar. I wonder when I will get to charge at 195A 48v

earthrealm:


Deye na baba!
So help me confirm at 2kw setting.. how many amps is being sent to battery bank.
Likewise at max 8kw.

You may need to do this on a day your bank is half full, or turn on all ya big loads

NiyiOmoIyunade:
Please see screenshot below - my first post on this matter, I stopped playing with the calculator when it was proposing a 12v inverter and CC for loads over 2kw.

I went and put in some test values again - the calculator is recommending 24v nominal battery bank and 2,500w inverter for a household that runs average 3000w and peak 5000w.

See how many charge controllers in 24v config the calculator has proposed? (like 17 to 23 units implied) See the PV array size proposed? (out of scope for most folks)

I happen to have similar load as input but properly sized as 48v nominal. I am doing just 4units of Victron Charge controller and 20Kw of PV Panels. My PV is grossly oversized for my day time needs and I run more than 5kw sustained at times.

You will need clearer parameters and more variables and certainly more work on the sizing algorithm to make this calculator into a truly professional sizing tool.

High level assumptions behind my test inputs.

8am to 4pm - 3000w load
4pm to 2am - 3000w load
2am to 8am - 1650w load

mank1234:


Your points have been noted.
To take info in perspective, here's the logic behind the numbers and amendment I'm proposing:
The design was for total Off-grid (including rainy season).

1) PANEL: Power reaslisable from panel was assumed to be 2x because of rainy season (4x is optimum in Nigeria, that is 4kWp a day from 1kw panel).
Solution: I'll update to 3x the average.
Panel was taken to be Bill divide by 30 divide by above ratio.

3) BATTERY: Use night consumption to calculate battery required. My logic was to cover for 3 nights if charging by sun is not feasible.
Solution: keep as it is.

ojeysky:




Guess you meant kWh, and yes 3x is more realistic expectations round the year.





Am not sure about this logic, it's better to allow option for people to select number of backup hours desired

mank1234:


Your points have been noted.
To take info in perspective, here's the logic behind the numbers and amendment I'm proposing:
The design was for total Off-grid (including rainy season).

1) PANEL: Power reaslisable from panel was assumed to be 2x because of rainy season (4x is optimum in Nigeria, that is 4kWp a day from 1kw panel).
Solution: I'll update to 3x the average.
Panel was taken to be Bill divide by 30 divide by above ratio.

2) INVERTER: use expected surge to determine inverter required. So if total load has starting power of W (for less than 2 seconds) , I assumed the load will settle at below W/2. Since most inverter are rated at 2x surge power, an inverter with W/2 capacity will do. Apparently, your equipments are inverter type and as such logic does not work.
My logic also was to select 12V if inverter is less than 1.5kW, 24V if less than 3.5kW
Solution: change inverter power to W so it takes care of types of appliances (including yours)

3) BATTERY: Use night consumption to calculate battery required. My logic was to cover for 3 nights if charging by sun is not feasible.
Solution: keep as it is.

Thanks for taking out time to evaluate it. If my proposed solutions above is okay let me know so I can edit it for the benefit of all.
Thanks once again.

NiyiOmoIyunade:
First off, many thanks for being open minded about this.

My first suggestion would be to allow users to input a few more variables so that you can capture the fine nuances of an installation.

E.g If I run what you call night time loads from 4pm to 8am and consume total energy of 16kwh, it does not mean I used 1kw per hour - most household loads are stepped and not linear e.g 2kw between 4pm and 8pm, 1kw between 8pm and 11pm and about 560watts from 11pm to 8am. This non linearity means you cannot average but rather collect peak load, peak run hours at minimum to size your inverter.

In my test example I assumed 3kw running and 5kw surge loads but averaging made the tool recommend a 2.5kw inverter. In fact the surge loads do not run for a few seconds as implied but rather on average 15 to 30 minutes e.g iron and microwave and heater usage.

While we are talking about inverters, not all can tolerate a 2x surge - especially the indian origin inverters so you may want to allow user to select inverter surge capability and peak running loads e.g a 2.8kw/3.5kva indian inverter may not actually tolerate running 2.8kw sustained.

I would use a 12v inverter for loads under 500w, 24v up to 1.5kw and 48v for any sustained loads above 2kw - there is a very good reason to do this but the basis is also not linear - it revolves around the proper battery sizes required to run those loads vs. the available charging amps a typical inverter in those sizes can put out as well as efficient use of CC capacity if charging off Solar.

Solar sizing, I agree with Ojeysky that 3x yield is more realistic - using monthly PHCN KwHr consumption may be misleading as your average household does not run off mains 24/7 and therefore the monthly household consumption in KwHr may not be readily available to read off the PHCN meter.

I like to look at solar sizing in two parts - the PV required to run day time loads + the PV required to replenish spent battery - when you add up [total KwHr of daytime loads + total KwHr of energy used from battery] and gross up for charge efficiency and energy conversion losses you can apply the 3x multiple [divide by 3] to size your solar array - if in doubt load up more PV.

For battery sizing, 3 days autonomy may work for Lead acid but unaffordable for Lithium - I am using 35kwhr to 40kwhr every night time from my 48kwhr Pylon tech bank and I get by just fine because I have enough PV to replenish spent battery at least 340 out of 366 days of a year.

These are just some ideas I have - surely you will need to add more parameters in the tool to fully capture all the nuances - largely we are on thesame page as per the general idea, perhaps some fine tuning required to make it work for all reasonable real life scenarios.

wilmaria14:
30ah femicare charger now available limited number pls ur order what's app
09013128166

adrusa:


Sorry to shit on your hustle, but this famicare is not a good charger. I bought one that is currently gathering dust. I don't know why it is labelled a "30ah" charge, but it rarely get pass the 10A marks over my 24v setup when I tried to use it.

olopan:
No, it is a 2s2p configuration

wilmaria14:
For does dat was asking of DC fridge we have now 206L 100w AC/DC all u need is ur 300w panel and your 150ah battery and u are good to go going for a good price just dm me 09013128166

ojeysky:
Can anyone recommend a good portable solar generator between 200 to 500w. It must have littium as it's backup battery.

IYGEAL:


Type Ceepro solar on Google and visit the website. One guy runs the site and has assorted solar gen of those range of capacities.

ojeysky:


Checked doesn't have the solar options

ceaser:


2s2p configuration panel for 48v system? How feasible is that? Or are the panels 500 watts each?

unicmarket:

I like to ask this boss,
How many ah is each of your battery?
And was it drained when you started charging it with the famicare?
And again was your Inverter also charging the batteries at the same time?

dollarnaira:
8 panels of 330w each.
Cc pwm 60A
200amp × 4 = 24v
Inverter hybrid mercury 24v, 2kva

Pls how should connect the above
Pls pls pls.

olopan:
I believe you know the terminologies

For the solar
Do 2 series and 4 parralel, with 16mm flexible cable

For battery
Do. 2 series and 4 parallel

Ensure that you use alternating terminals for charging - PWM and other for Load- Inverter.

olopan:
I believe you know the terminologies

For the solar
Do 2 series and 4 parralel, with 16mm flexible cable

For battery
Do. 2 series and 4 parallel

Ensure that you use alternating terminals for charging - PWM and other for Load- Inverter.

dollarnaira:
8 panels of 330w each.
Cc pwm 60A
200amp × 4 = 24v
Inverter hybrid mercury 24v, 2kva

Pls how should connect the above
Pls pls pls.

olopan:


.... For battery
Do. 2 series and 4 parallel

Ensure that you use alternating terminals for charging - PWM and other for Load- Inverter.