ceaser:


Waoh. And I though I was the luckiest with 114 watts consumption. But did you say the hisense is 100 litres capacity? Cos the Thermocool I posted is 203 litres capacity. I would have loved to do a capacity-for-capacity comparison.

It's 205 liters with net capacity of 198l[written on the back] final watts after being on for about 6 hours is 56watts

ceaser:


Hmmm. Your system is a 24volt system, isn't it?

Yes but I measured the watts during grid power as the rains have been too much and we have been having stable grid power

ceaser:


There appears to be nothing wrong with your battery. Nominal 12v battery reads around 12.7 volt on standby. Your 24v system reads 25.6 when charging source is removed divided by 2 gives 12.8v). You won't expect the battery to still retain the voltage shown while it's charging when the charging source is removed. You naturally expect the charger to have a higher voltage, which is the voltage that is shown while charging is taking place, than the nominal of the battery to enable a potential difference that pushes the current into the battery.

thanks for this, already thinking my battery must have depreciated. mine normally reads between 25.4 and 25.5 during evenings, when there is no solar power, but 27.2 when fully charged with solar.

This is deep. Thanks for the insight.

ceaser:


I had noticed that the watt consumption of appliances plugged into inverters usually changes as the battery voltage decreases with use. A 32" tv showing 42 watts when the battery is 13.2 volts eventually goes to around 48 watts when the battery voltage reaches around 12.1 volts. Of course I know that current-voltage inverse relationship, but I just didn't put much thought to it initially.

Then came the time to make a standalone solar set up for a sliding gate opener. I insisted on a DC powered variant but the Nigerian merchant convinced me of the better reliability and long lasting AC motor over DC motor, including the fact that the AC motor is easier to come by in case it needs replacement. I suspected sale gimmicks though but I had little choices since there is no local seller with DC variant on offer.

I tested the consumption on 230VAC national grid and it came to 180 watts working, 2 watts standby. To be sure it can be run by solar, I tested it on a 12volt 100amp battery solar set up and it gave the same watt consumption.

I then decided to make it's modular supply a 24 volt system.
* 50 watts panel x 2 connected in series
* 12v/24v 10amp PWM SCC
* 7ah SMF (ups battery) x 2 connected in series. The batteries can do 4 cycles of opening and closing before the inverter beeps low voltage.
* 350 watts 24volt PSW inverter.

When I tested the appliance in the set up with the wattmeter plugged in, it showed 100 watts consumption, a variance with the 180 watts it shows on 12volt system.

So basically while it still inherently consumes a standard stated power, although fictitiously altered/reduced by the increased voltage, it gives a somewhat misleading readout on the wattmeter. Reason I asked if your freezer is hooked onto a 12v or 24v system or standard grid AC when you tested the consumption.

olatade:
I have a question but can't say if it is dumb or not but i need help please, because I'm still a novice in this field

Please if you're having a 12 volt battery with 600 watts solar setup and a 60A mppt charge controller, is it the whole 60A from the CC that is going to go directly into the battery or is there any other thing i should be aware of? I don't get it

what do u see on the screen of your cc?, abi you are asking a hypothetical question?
if you hv 600w panel hooked up on a 12v system as you describe, under ideal conditions, which include panel orientation and angle, panel make and efficiency, proper cable sizing etc, max current you would expect to get is 600w/12v -- 50amps, but since we know nothing is ideal in nature, your max instantenous harvest maybe 500w or 42amps, though the avg wud be btw 200w n 350w, thus 20amps to 30amps, wch is ok for a 12v 200ah battery.

Thanks

ceaser:



By the way, below is the name plate of the Haier thermocool. Start up power draw is usually 167watt to 170watts. It then starts dropping and in less than 4 minutes, it drops to around 110 watts in most cases.

Thanks for taking out time to reply.
That 1.5KW is very brief, hardly up to 100milliseconds, your unit does exactly the same thing sometimes (ALL AC motors experience inrush current). You just haven't noticed because it a very fleeting event.

ceaser:




OCCASIONALLY starts up at 1,500 watts (yes 1.5kw) but immediately drops to 115 watts working power. Most times it starts up at the expected low180 watts. But I don't understand that occasional 1.5kw that makes it different from my own. A factory error I suppose.

ceaser:


I had noticed that the watt consumption of appliances plugged into inverters usually changes as the battery voltage decreases with use. A 32" tv showing 42 watts when the battery is 13.2 volts eventually goes to around 48 watts when the battery voltage reaches around 12.1 volts. Of course I know that current-voltage inverse relationship, but I just didn't put much thought to it initially.

Then came the time to make a standalone solar set up for a sliding gate opener. I insisted on a DC powered variant but the Nigerian merchant convinced me of the better reliability and long lasting AC motor over DC motor, including the fact that the AC motor is easier to come by in case it needs replacement. I suspected sale gimmicks though but I had little choices since there is no local seller with DC variant on offer.

I tested the consumption on 230VAC national grid and it came to 180 watts working, 2 watts standby. To be sure it can be run by solar, I tested it on a 12volt 100amp battery solar set up and it gave the same watt consumption.

I then decided to make it's modular supply a 24 volt system.
* 50 watts panel x 2 connected in series
* 12v/24v 10amp PWM SCC
* 7ah SMF (ups battery) x 2 connected in series. The batteries can do 4 cycles of opening and closing before the inverter beeps low voltage.
* 350 watts 24volt PSW inverter.

When I tested the appliance in the set up with the wattmeter plugged in, it showed 100 watts consumption, a variance with the 180 watts it shows on 12volt system.

So basically while it still inherently consumes a standard stated power, although fictitiously altered/reduced by the increased voltage, it gives a somewhat misleading readout on the wattmeter. Reason I asked if your freezer is hooked onto a 12v or 24v system or standard grid AC when you tested the consumption.

What's the model and cost of that inverter, does it also have charging capability ?

earthrealm:


what do u see on the screen of your cc?, abi you are asking a hypothetical question?
if you hv 600w panel hooked up on a 12v system as you describe, under ideal conditions, which include panel orientation and angle, panel make and efficiency, proper cable sizing etc, max current you would expect to get is 600w/12v -- 50amps, but since we know nothing is ideal in nature, your max instantenous harvest maybe 500w or 42amps, though the avg wud be btw 200w n 350w, thus 20amps to 30amps, wch is ok for a 12v 200ah battery.

I'm planning on buying the mppt charge controller but for now I have the 12 volts luminous hybrid with pwm CC to make do with.

thanks for the info

ceaser:


Is this pump submersible or surface? What is the "lift" like (in meters)?

Any purchase link or url?

the sqflex is a submersible pump. though it will pump if it is submerged with inlet at least 18" below water surface. so it will work from a shallow body of water as long as conditions are met.

lift of the sqflex 2.5 is 250m max, but flow rate improves the smaller the head required. I.e the deeper the borehole the lower the flow rate and vice versa.

here's a link to purchase:
grundfos sqflex
http://www.solarshopnigeria.com/accessories/grundfos-water-pumps/grundfos-sqflex-2-5-2.html

Lorentz pump:
https:///agege/plumbing-and-water-supply/lorentz-ps2-1800-c-sj5-12-solar-submersible-pump-system-for-4-wells-6005750.html

https:///lagos-mainland/plumbing-and-water-supply/lorentz-ps2-4000-c-sj3-32-solar-submersible-pump-system-for-4-wells-12359108.html

these links should give you a head start on.your enquiries.

I have personally worked with both pumps they are good. good pump impellers, mppt function.

here's a link for literature:
https://www.lenntech.com/uploads/grundfos/95027330/Grundfos_SQF-2-5-2.pdf

https://www.lorentz.de/products-and-technology/downloads

https://partnernet.lorentz.de/files/lorentz_ps2_product-brochure_en.pdf

http://www.solar23.com/pompe_grundfos_sqflex.html


you will need 8nos of 300wp panels, storage tanks, pv pole mount, reticulation e.t.c to complete your setup.

cheers.
disclaimer: I do not represent any of the above companies. I am not sure if posting the Eauxwell reps number here is acceptable. anyways, you could forge ahead with the above info.

generationz:

It actually can.

I had actually gotten price estimations to set up one with a 150watts solar panel, a lifepo4 battery etc
Costs less than 70k


I just want other options especially with lead or mercury battery.


Also if you have a link to the powerbank please share. I just want ro compare every thing and see which is the best for me.
Thanks.

that would be a good deal. things to watch out for:
1. the Dc input socket. mine burnt out when an 80w panel was connected to the port.mine was basically undersized for the possible 5amps max the panel could produce. this leads to my second question

2. has your seller/vendor connected a 150w panel to the Powerbank before? some units have current limit on their charging circuits.

3. some vendors will tell you that a max of 100w only can be loaded on the Powerbank even though they sell it with a 300-500w modified sine wave inverter. practically however, in use I observed a smell of burnt wires when the power bank was loaded to only 50watts. and don't ever try to charge it with a small generator. the pack will pack up much sooner. lol

when i connected the 80w panel to the Powerbank, I noticed on the digital display that the voltage was rising close to the panels Voc of 21volts.it was supposed to stop at 19v when the power bank was fully charged. (at least according to the seller).

I noticed the bank overheating when a load was connected to the power bank while the panel was charging the unit.

the power bank I am using is the popular black unit (CT/ZINOX).

I think now I would prefer a unit built with thicker cables and connectors, these Naija built blue packs with evident BMS may be better.

I hope your offer is better.

cheers

Namzy:

Yes but I measured the watts during grid power as the rains have been too much and we have been having stable grid power

So measuring on grid power you got 70 watts consumption? 205 litres? Abeg where person fit buy that model, Online? Showrooms? And please what is the model again? I wan sell Thermocool buy Hisense wey get more sense.

I have good experience with their 65" smart TV, so I think they have reliable products on offer.

EDITED ON AFTERTHOUGHT: By saying "grid power" do you mean that the freezer is connected DIRECTLY to the grid or thru the inverter which in turn is plugged into the grid? Cos if that is the case, the freezer is still technically plugged into your 24 volt system and the wattmeter will still give the same readings as when the inverter is on solar alone.

To be doubly sure, unplug the freezer from the inverter, then plug it directly into the mains thru the wattmeter and check the readings again.

BetaTechnicians:

What's the model and cost of that inverter, does it also have charging capability ?

Neither solar charging nor grid charging capacity. Got it off of AliExpress. Got delivered to me in 12 days.

lexi28:


the sqflex is a submersible pump. though it will pump if it is submerged with inlet at least 18" below water surface. so it will work from a shallow body of water as long as conditions are met.

lift of the sqflex 2.5 is 250m max, but flow rate improves the smaller the head required. I.e the deeper the borehole the lower the flow rate and vice versa.

here's a link to purchase:
grundfos sqflex
http://www.solarshopnigeria.com/accessories/grundfos-water-pumps/grundfos-sqflex-2-5-2.html

Lorentz pump:
https:///agege/plumbing-and-water-supply/lorentz-ps2-1800-c-sj5-12-solar-submersible-pump-system-for-4-wells-6005750.html

https:///lagos-mainland/plumbing-and-water-supply/lorentz-ps2-4000-c-sj3-32-solar-submersible-pump-system-for-4-wells-12359108.html

these links should give you a head start on.your enquiries.

I have personally worked with both pumps they are good. good pump impellers, mppt function.

here's a link for literature:
https://www.lenntech.com/uploads/grundfos/95027330/Grundfos_SQF-2-5-2.pdf

https://www.lorentz.de/products-and-technology/downloads

https://partnernet.lorentz.de/files/lorentz_ps2_product-brochure_en.pdf

http://www.solar23.com/pompe_grundfos_sqflex.html


you will need 8nos of 300wp panels, storage tanks, pv pole mount, reticulation e.t.c to complete your setup.

cheers.
disclaimer: I do not represent any of the above companies. I am not sure if posting the Eauxwell reps number here is acceptable. anyways, you could forge ahead with the above info.

Thanks for these details. Much appreciation.

I have an alternative hypothesis - the watts consumed by an appliance changes at different stages of work/duty cycle the appliance is in, other factors like mechanical state, maintenance e.t.c may influence the wattage e.g an electric iron may consume 1.3kw at full power when heating up the element but say 800w at a lower power setting and even less watts in standby.

What you are experiencing as different watt readings has no correlation to battery or mains voltage within a standard operating band, rather it is the device's operating efficiency and amount of work being done that drive the watts consumed - so a freezer may start up at 1000w briefly then go to 180w then after 24hours and all food frozen go to 70w. If you opened the freezer a bit, compressor may kick on again and go back to 180w.

The amps drawn by a device will vary based on the voltage of the power source so if measuring DC amps, the same wattage load may show twice the amps or more if measured at 24v source vs. 12v source.

To clarify the science, if all other factors are held constant, the watts an appliance consumes will be influenced only by the device's design/operating efficiency and the stage of work cycle the device is at. The amps draw on the other hand will vary with the operating voltage of the source being measured.

If you are measuring thesame device and getting different wattage readings, it is either different stages of the work cycle or calibration error of the measuring instrument.

ceaser:


I had noticed that the watt consumption of appliances plugged into inverters usually changes as the battery voltage decreases with use. A 32" tv showing 42 watts when the battery is 13.2 volts eventually goes to around 48 watts when the battery voltage reaches around 12.1 volts. Of course I know that current-voltage inverse relationship, but I just didn't put much thought to it initially.

Then came the time to make a standalone solar set up for a sliding gate opener. I insisted on a DC powered variant but the Nigerian merchant convinced me of the better reliability and long lasting AC motor over DC motor, including the fact that the AC motor is easier to come by in case it needs replacement. I suspected sale gimmicks though but I had little choices since there is no local seller with DC variant on offer.

I tested the consumption on 230VAC national grid and it came to 180 watts working, 2 watts standby. To be sure it can be run by solar, I tested it on a 12volt 100amp battery solar set up and it gave the same watt consumption.

I then decided to make it's modular supply a 24 volt system.
* 50 watts panel x 2 connected in series
* 12v/24v 10amp PWM SCC
* 7ah SMF (ups battery) x 2 connected in series. The batteries can do 4 cycles of opening and closing before the inverter beeps low voltage.
* 350 watts 24volt PSW inverter.

When I tested the appliance in the set up with the wattmeter plugged in, it showed 100 watts consumption, a variance with the 180 watts it shows on 12volt system.

So basically while it still inherently consumes a standard stated power, although fictitiously altered/reduced by the increased voltage, it gives a somewhat misleading readout on the wattmeter. Reason I asked if your freezer is hooked onto a 12v or 24v system or standard grid AC when you tested the consumption.

ceaser:


So measuring on grid power you got 70 watts consumption? 205 litres? Abeg where person fit buy that model, Online? Showrooms? And please what is the model again? I wan sell Thermocool buy Hisense wey get more sense.

I have good experience with their 65" smart TV, so I think they have reliable products on offer.

EDITED ON AFTERTHOUGHT: By saying "grid power" do you mean that the freezer is connected DIRECTLY to the grid or thru the inverter which in turn is plugged into the grid? Cos if that is the case, the freezer is still technically plugged into your 24 volt system and the wattmeter will still give the same readings as when the inverter is on solar alone.

To be doubly sure, unplug the freezer from the inverter, then plug it directly into the mains thru the wattmeter and check the readings again.

It's grid power although my axpert inverter has bypass mode but I use grid more often and allow the inverter rest

15KVA Relay Stabilizer for quick disposal (good price)
Reason: Undersized
Text: 08158402376

Hello experts, my 3 solar panels are 300w/ 24v, CC 20a/12v/24v and UPS 1.5kva/24v.
The intaller joined the 3 negative from the panel together ane deed same with the positive but i want to ask is the connection ok or ur advice. Thanks n waiting for ur response...

durumibaka:
Hello experts, my 3 solar panels are 300w/ 24v, CC 20a/12v/24v and UPS 1.5kva/24v.
The intaller joined the 3 negative from the panel together ane deed same with the positive but i want to ask is the connection ok or ur advice. Thanks n waiting for ur response...

The modules connection is in parallel, it is okay but your CC might burn because of the excessive current from the module set up.

harizonal123:
I have been using this new top light battery brand of 12v200amh for about 3 weeks now & I intend buying another 12v200amp of a different brand maybe quanta next week to add to it. Is advisable to mix batteries of different produce. The top light product I'm currently using is not too impressive at the moment. I won't like to buy a second one of it. Pls what's ur advise

I finally bought a sunfit agm battery of 12v200ah as a back up plan for my toplight gel battery. I don't intend to combine both cos of their different chemistry. I am currently doing a design to enable both charge and supply separately with the aid of double change over. So that when I am using one the other can be charging & the next day vice versa .I will update when I'm done with my connection

generationz:



Please I need advise on how to go about setting up a solar system with panels, inverter, battery and all for not more than 70k

It's just for a laptop and a phone. Thanks.

Please if you know where I can get new or fairly used products to fit my budget it would be of great help.

Off the top of my head.
-3used 100w panels connected in parallel
-a 12v pwm charge controller
-a 200ahr used or new.

Or

--3used 100w panels connected in parallel
- one of them 18650 battery packs made from recycled cells
-laptop adapter and phone charging ports too.

For both options u may need to up your budget a little.

Cheers

Trippledots:


Off the top of my head.
-3used 100w panels connected in parallel
-a 12v pwm charge controller
-a 200ahr used or new.

Or

--3used 100w panels connected in parallel
- one of them 18650 battery packs made from recycled cells
-laptop adapter and phone charging ports too.

For both options u may need to up your budget a little.

Cheers

Okay

harizonal123:


I finally bought a sunfit agm battery of 12v200ah as a back up plan for my toplight gel battery. I don't intend to combine both cos of their different chemistry. I am currently doing a design to enable both charge and supply separately with the aid of double change over. So that when I am using one the other can be charging & the next day vice versa .I will update when I'm done with my connection

. I am currently doing a design to enable both charge and supply separately with the aid of double change over.

Pls show pix of the double change over. I am interested

Available now !!!
7ah 12v, 12ah 12v, 18ah 12v, 100ah 12v, 150ah 12v slum, 200ah 12v Britelite AGM Deep Cycle Premium Battery at wholesale Prices with 12months warranty with T&C Applied... Call 08037748901 if you are tired of complaining about low quality batteries in the market. We only get better and never compromise. #NewArrivals #EjaNlaStraightFromTheOcean #AsEdeyHot #KingOfAGMs

harizonal123:


I finally bought a sunfit agm battery of 12v200ah as a back up plan for my toplight gel battery. I don't intend to combine both cos of their different chemistry. I am currently doing a design to enable both charge and supply separately with the aid of double change over. So that when I am using one the other can be charging & the next day vice versa .I will update when I'm done with my connection

Will be good to read your experience on the batteries, I am using sunfit panels and so far so good.

Folks if your system supports equalization do ensure to do it, am not sure if this was a coincidence but I think my batteries are doing better since my first equalization.

ceaser:


Neither solar charging nor grid charging capacity. Got it off of AliExpress. Got delivered to me in 12 days.

Ok thanks.

ojeysky:
Folks if your system batteries supports equalization do ensure to do it, am not sure if this was a coincidence but I think my batteries are doing better since my first equalization.

of course!, anybody using flooded batteries and not equalizing is just looking for trouble.

earthrealm:


of course!, anybody using flooded batteries and not equalizing is just looking for trouble.

Hahahaha I saw you cross out system I meant the backup system setup, not body system lol.
Fyi, am on AGM.

ceaser:


Neither solar charging nor grid charging capacity. Got it off of AliExpress. Got delivered to me in 12 days.

Pls link of the seller and if possible pictures

generationz:



Please I need advise on how to go about setting up a solar system with panels, inverter, battery and all for not more than 70k

It's just for a laptop and a phone. Thanks.

Please if you know where I can get new or fairly used products to fit my budget it would be of great help.

For I have small package like that, 2 used 40ah LiFePo4 battery (10k each), 250watt solar panel (33k) 40A pwn charge controller ordered from China (6.5k) and a homemade inverter made by my self (7k), cable (3k) TOTAL #69,500. This power my 32" Led TV, home theater, decoder, my standing fan, charge my phones, and 4 Led bulbs. Am usually home from 7pm which my appliances comes on then, till 11:30pm or 12am bed time TV is off leaving light and fan till 3 or 4am when weather is cold fan is off leaving light till day break. If am home I equally use the system when battery is charged from noon and the system is running smoothly for 6 months going. Below are my setup!

Dishtech:
For I have small package like that, 2 used 40ah LiFePo4 battery (10k each), 250watt solar panel (33k) 40A pwn charge controller ordered from China (6.5k) and a homemade inverter made by my self (7k), cable (3k) TOTAL #69,500. This power my 32" Led TV, home theater, decoder, my standing fan, charge my phones, and 4 Led bulbs. Am usually home from 7pm which my appliances comes on then, till 11:30pm or 12am bed time TV is off leaving light and fan till 3 or 4am when weather is cold fan is off leaving light till day break. If am home I equally use the system when battery is charged from noon and the system is running smoothly for 6 months going. Below are my setup!

Thanks so much.

This your inverter is strong o

I envy you guys that can just couple things together and get what you want. All those wires dey fear me. Make I no go burn house down.



Please, help a sister out where did you get the batteries?


I believe I can use a. Ups for this.