jum33:
I am on a low budget and want to buy this inverter battery Famicare 12v 100ah and I need someone to help me review whether it will serve my purpose for the following load : 3 ceiling fan , 2 25w low energy bulb and a 50 inches led TV .
How many hours am I expected to get from a full charge? Is the claim for 100ah is really true cos some manufacturer do lie.thanks

ceaser:


On those loads you listed, you should be able to get a good 30 minutes (half-hour) backup max. It may also drop to around 10 minutes backup after few weeks of use.

dollarnaira:


Bms will not allow u babysit lithium.
So remove lithium from ur list.

samnaija:


So you don't monitor the bms. All batteries need monitoring.

isangjohnson:
[quote author=samnaija

I think dollarnaira was just joking.....
There's no system that doesn't need monitoring/maintenance, including our body system.

earthrealm:


Yes, ha12 is beta sef, with bluetooth dusplay of battery voltage. Search on jiji.

Best installed from day 1

odimbannamdi:


60A Powmr MPPT Solar Charge Controller available
Price: 52,000 firm

60A PWM Solar Charge Controller (1 unit)
Price: 10,000 firm

Whatsapp: 09...08....3...74.86..35

sathob:
Well, great people of FTA, I think I should start this on behalf of George_D because of the request made by others who have expressed interest in alternate electricity, especially solar energy. Our FTA independence is not complete if we are to suffer frequent power outages and been dependant on the nation’s electricity grid system always. I have read in this house many times, from members “PHCN don go off, so I will track later when they come back”. No one can run away from power outages in the main electricity grid – not even the west, it happens. Hence, we all should have alternate electricity and using renewable energy is, to me, the best. This means one can enjoy their FTA fully by being totally free and not “dom” (dominated).

Look at some advantages
• Lower or no electricity bills
• Compared to generator users, there is no fuel cost and stress of getting it and no fumes.
• People living in the remote locations where power is unavailable or too expensive to hook-up too can have electricity.
Just to mention but a few.

Without going into detail, one can enjoy electricity by means of using solar energy (energy from the sun), wind mill (using energy from the wind). Don’t forget, where there is frequent electricity supply from the utility company, you can store some energy for back up.

You will need the following to complete a solar project or back up.

1. Solar panels
2. Power Inverter
3. Charge controller
4. Batteries to store energy
5. wires and cables
6. Monitors/meters

The solar panel consists of cells called photo voltaic cells and these, covert the energy received from the sun to electricity in simple terms (this electricity is a direct current
d.c). The panels can last up to 20 years plus. The panels can be fixed, adjustable or of the tracking type. You can decide to go for a complete panel from manufacturers (already made) or build panels by yourself using solar cells- the latter is for the hobbyist. The panels are rated in watts eg 80w solar panel supplying 12v continuous at a given time

The inverter
Power Inverters are available in 3 basic designs, two of which I remember very well now – the one that out sinusoidal waves and those that are modified sign wave type (meaning not pure sine waves and do have limits when it comes to its application) . The power inverter converts your storage battery power into the 240 volts AC that runs your appliances. It is the heart of your solar energy system. Unless you only run 12 volt DC appliances you will need a power inverter to supply your AC. This is just the basics.

The Charge Controller
A Charge Controller is necessary to protect the batteries from over charging and supply them with the proper amount of energy to promote long battery life.

Batteries
Without Storage Batteries to store energy you would only have power when the sun was shining. There is a lot more to batteries than just the ordinary car battery. Yo may need to change batteries over the years.

Wires and Cables
Without the right size of cables, you are likely to experience inefficient transfer of power (greater losses) and overheating.

Meters
This is required to monitor the performance of your solar system.

Firstly, it is very necessary to know what gadgets you will be using (eg.tv, sat. receiver) and how long you will use how long you would have them on the solar power and how much energy your battery can store and which solar panel (rating in power) will supply the required energy.

A lot goes into calculating the cost of setting up a solar system. First one has to consider the period of usable sunlight available at their location to do this calculation. For us here close to the equator, we get about 7 to 8 hours or more of sunlight during dry season, just a rough estimate.

How do I know I need 100w or 80w or 300 watts solar panel for my project?

The power consumption of appliances is given in Watts. To calculate the energy you will use over time, just multiply the power consumption by the hours of use.

Eg. If I have 90W tv set which I want to use for 6hrs, 25W satellite receiver for the same period, and a 50W fan for 3 hours. What will be the energy required from the solar panels for the period?

1. the energy for each appliance is Watts x time (hours) = Wh

So, the watt hours for the tv = 90 x 6 = 540 Wh (watt hours)

Watt hours for sat. receiver = 25 x 6 = 150 Wh

Watt hours for fan will be = 50 x 3 = 150 Wh

2. sum the watt hours for the individual appliances ie. 540 + 150 + 150 = 840 Wh (watt hours)

This means that the solar panel will need to supply 840 watt hours of energy to the battery each day to cover the total power required by these appliances.

3. since there are bound to be losses in the system However, to account for natural losses, we multiply the result by 1.2 (this factor allows for natural system losses, assuming 85% efficiency). Therefore, we will assume the panels will actually need to be able to supply a total of
840 x 1.2 = 1008Wh

4. so, to supply 1008Wh of energy the panel we assume to receive 7 hours of sunlight will be rated at 1008 Wh / 7 h = 144W
So, I will need 144W solar panel to supply energy to my appliances above at the given time.

Regarding point 3, it also means, if I have a solar panel rated at 100W receiving sunlight for 7 hours a day, the total energy supplied considering 85% efficiency will be 100x7x0.85= 595Wh and not 700Wh

5. Your battery should be able to store 1008Wh of energy. Since batteries capacities are rated in Ah (Ampere Hours) you need to multiply Ah by the Volt rating to know the Watt Hour. Power(W) = Voltage (V) x Current (I) ; Watt hour = VxIxHour

Therefore Ah (which is I x h) = Wh / V = 1008 / 12 (the number 12 represents a 12v battery)
= 84 Ah

So it means you will need not less than a 84Ah, 12V battery (deep-cycle batteries, not ordinary car batteries) to do the job.

NB. Another way of calculating battery capacity is explained in this example. Should my battery be rated at 84Ah, 12V the watt hour (energy) will be 84Ah x 12 V = 1008Ah

It implies that the battery can supply a 150watt appliance for 1008/70 = 14hours

Pls don’t just play around with batteries they are dangerous.

drizzypat:
Hello I need advice from solar users ND installers

I use a tabular battery 200ah*2 4 panels ND there abouts

I've been hearing from people's saying a 200ah lifepo lithium battery serves as a 400ah tabular in terms of duration ND power load

I want to know if this is true

Rumor has It that tabular batteries barely last 3yrs ND lifepo does over 6yrs

So I'd like to know If all those claims right

Moving to a new place ND thinking of switching to this lithium batteries

Pls is this a good move as I want more lasting battery duration( I get like 14hrs from d tabular..the lifepo can do 24hrs?)

Pls educate me by making d wrong move

Thanks

Valto:
Suoer 12v Pure Sine Wave 1500VA Power Inverter with Built in 20A Battery Charger. full editable charge settings and other parameter settings. compatible with lithium battery@80k

kiekie1:
WE BUY DEAD/SCRAP BATTERIES!!!

We also buy off scrap/dead deep cycle batteries from any state to Lagos (Terms & Condition applies) ..

12v 200a .... N20,000
12v 150a.....N15,000
12v 100a.......N10,000
2v 500a ......N6,000

If outside Lagos state , send the scrap batteries to your nearby Lagos park & get your payment alert immediately after confirmatory remarks from me with the transport company manager / secretary or driver ..

Contact,
Smartcell global services
CALL:: 081-350-31951
WHATSAPP::: https:///2348170385620

Xmen149:


how much will you sell two dead batteries to me

gadgetplanetng:
My understanding is, you are advised to use the Lead Acid batteries to not more than 50% of capacity while LiFePo4 batteries would allow you drain them close to 0%.
That's the difference.

I still use the same calculation for Lead Acid for LiFePo4 though.

drizzypat:
u use lifepo4? What can you say but the duration..from ur post the lifepo4 can do x2 of lead acid

somebody02:
Good day house.
Please I need help with 500w-800w inverter
And the best 12v 150ah/200ah battery.
Just something small.

Something similar to this thread without the solar panel.
https://www.nairaland.com/6868224/how-managed-light-situation-apartment
Please I need recommendations.

gadgetplanetng:


The inverter he got is a good deal price wise though I've not seen reviews on durability.

The battery he got has a lot of bad reviews

gadgetplanetng:


I use LiFePo4.

I'd rather use x1.5 if I want to use a factor but for peace of mind I use the same size.

It's not advisable draining LiFePo4 to 0% regularly (sometimes you drain your phone/laptop and it doesn't come on anymore)

Rule of Thumb for Lithium to last long is Charging to 80% and draining to 20% (usable 60%) which is a bit more than the ideal usable 50% of Lead Acid.

somebody02:
Good day house.
Please I need help with 500w-800w inverter
And the best 12v 150ah/200ah battery.
Just something small.

Something similar to this thread without the solar panel.
https://www.nairaland.com/6868224/how-managed-light-situation-apartment
Please I need recommendations.

dollarnaira:

Still doubt that a single 150w panel will charge 180amp battery full.

drizzypat:
abit more? So it's nt entirely worth d change from tabular?

Was thinking I'll get x2 as ppl say looking solely at d price for a 200ah costing 380

dollarnaira:

Still doubt that a single 150w panel will charge 180amp battery full.

Valto:
^^^ nice job @olopan. my epever 5kw hybrid consumes about 40w to 50w. the kartel consuming 240w is still a big waste. he should work towards replacing it with a something like this rugged TBB power inverter that has incredible low self consumption of around 17w to 22w

Valto:
^^^ nice job @olopan. my epever 5kw hybrid consumes about 40w to 50w. the kartel consuming 240w is still a big waste. he should work towards replacing it with a something like this rugged TBB power inverter that has incredible low self consumption of around 17w to 22w