₦airaland Forum

ask4bk:
Then... Always make sure your charging voltage and float voltage are same. If not, some inverters will push all loads to battery even in sunlight until it gets to that default low float voltage in the inverter. By the time evening arrives, you have a lesser reserve to hold at night.
LFP doesn't like high float voltage, that is staying in one high voltage for long all day.
So i advice to charge and float at 3.45v-3.48v.
You must not follow this. Just my personal preference.

An 8kwh battery will hold 300w all night ( 300w x 16 hours = 4.6kwh).

If you are the installer, dedicate a day to be there and see how many amps are charging it till it gets filled up. Then watch how it's discharging and how many amps are leaving.
Its quite easy to diagnose such problem when you are there. Maybe neighbour de tap light 🤣🤣🤣.
You check each cells too (only if battery let's you see) to see if a bad cell is there. If one cell gets to 3.50v it may read as full when other cells are still at 3.2v 🙆🏾‍♂️🙆🏾‍♂️ chineke.

Its quite easy to diagnose sha when you are there.

Mrreed:
You can start by ensuring that the panels are actually performing optimally and that the battery is truly receiving those amperage. It would have been easier to diagnose if the battery has a smart BMS

How can I set it to charge and float at 3.45v-3.48v?
It's an sms (sunmate) 4.2kva inverter.

Monsieuryankee:
How can I set it to charge and float at 3.45v-3.48v?
It's an sms (sunmate) 4.2kva inverter.

Check the manual sir.
If you press and hold the last button by your right you'll enter settings menu. Use the manual to guide you for each menu. Don't temper with that area if you don't know what you are doing.

For the figures i gave you, just times them by 8 if its a 24v system and by 16 if its a 48v system

606thearena:
Good morning guys , great minds I have been following this thread for years and I have gained a lot , pls I want to upgrade my set up from a 3.5 kva felicity , 2 luminous tubular battery set up to 5kva hybrid inverter Set up , with 5kwh or 7.5 kilowatts lithium battery . I plan to use my ac and washing machine during peak hours of sun . Pls guys I need the best advices because I’m working on a tight budget , I already have 8 , 250 or 300 watts Canadian used panels on the roof . I need your best recommendations for hybrid inverter and good lithium battery , from 5kwh to 8.5kwh . Thanks guys . 😊😊😊

Have you upgraded

Simpleman4life:
Have you upgraded

Not yet o I’m just deliberately lagging because of light has improved tremendously in my arear .

So guys. I've had a 5kva Yohako non hybrid inverter i bought back then for an installation but i never used. Now i have a 10kwh lithium battery and i want to install it. However, an engineer told me that i need to get a smart hybrid inverter because installing my non hybrid yohako inverter would ruin my lithium battery because it's not smart and wont be able to set cut off voltage etc... He's suggesting that he can help me sell off my 5kva 48v Yohako, I'll add like 100k (amount to buy a stand alone charge controller) and he'll get me a smart inverter of 3.5kva or 4.3kva for 350k....so he plans on selling a 5kva brand new Yohako for 250k. The whole thing sounds fishy to me....is he telling the truth or can i go ahead and use the Yohako 5kva with the 10kwh lithium i have?. I already have 4 590watts panels, all i need to do is to order a charge controller and do the install. I dont plan to charge with grid fyi.... Strictly solar charging

bassdow:
Finally bought SRNE ML4860 mppt charge controller. Bought it used 60,000 naira + 10,000 naira (transportation).
Hopefully, it matches my taste else I would sell it.

As per the load being only 20amps, I can't use a charge controller without using that load port Ooo....

How do you deal with lightning please?

In April I connected DC phone chargers to charge controller load output section. One sudden lightning strike just before windy rain started blew all the chargers.

( Charge controller DC out - DC/DC buck converter - mobile chargers)

I thought my DC-DC buck converter could stop excess current if there's surge, .. for where? Lightning flew through it and the chargers bought out smoke in my front

Do you earth the charge controller output before passing to your devices?

Thanks for your anticipated response

Royle2014:
So guys. I've had a 5kva Yohako non hybrid inverter i bought back then for an installation but i never used. Now i have a 10kwh lithium battery and i want to install it. However, an engineer told me that i need to get a smart hybrid inverter because installing my non hybrid yohako inverter would ruin my lithium battery because it's not smart and wont be able to set cut off voltage etc... He's suggesting that he can help me sell off my 5kva 48v Yohako, I'll add like 100k (amount to buy a stand alone charge controller) and he'll get me a smart inverter of 3.5kva or 4.3kva for 350k....so he plans on selling a 5kva brand new Yohako for 250k. The whole thing sounds fishy to me....is he telling the truth or can i go ahead and use the Yohako 5kva with the 10kwh lithium i have?. I already have 4 590watts panels, all i need to do is to order a charge controller and do the install. I dont plan to charge with grid fyi.... Strictly solar charging

i think buying off your old yohako inverter is a fair deal , but u should get a better 48v 6.2kw hybrid inverter with 120A Mppt. also try to add 2 or 3pcs more panels all connected in series. in lithuim world, an inverter having editable charge and low voltage disconnect settings is a must !

A fire broke out in a garden and spread to three neighbouring properties after a solar panel battery system became alight.

Essex County and Fire Rescue Service were called to a shed at a property in Wickford at about 11:28 BST on Saturday.

Firefighters worked quickly to remove barbecue gas canisters from the site and stop the blaze from spreading further.

A spokesperson for the service said: "The fire started in a mini Battery Energy Storage System (BESS) connected to the solar panels. Our advice to anyone with solar panels is to ensure they are installed by a reputable, qualified company and maintained in line with the manufacturer's guidance."

Royle2014:
So guys. I've had a 5kva Yohako non hybrid inverter i bought back then for an installation but i never used. Now i have a 10kwh lithium battery and i want to install it. However, an engineer told me that i need to get a smart hybrid inverter because installing my non hybrid yohako inverter would ruin my lithium battery because it's not smart and wont be able to set cut off voltage etc... He's suggesting that he can help me sell off my 5kva 48v Yohako, I'll add like 100k (amount to buy a stand alone charge controller) and he'll get me a smart inverter of 3.5kva or 4.3kva for 350k....so he plans on selling a 5kva brand new Yohako for 250k. The whole thing sounds fishy to me....is he telling the truth or can i go ahead and use the Yohako 5kva with the 10kwh lithium i have?. I already have 4 590watts panels, all i need to do is to order a charge controller and do the install. I dont plan to charge with grid fyi.... Strictly solar charging

First thing is, even non hybrid inverters can handle Lithium batteries so long they've got the settings - some do have editable settings, while some have the option.
it's when it's got none of these 2 things, you should bother.

Secondly, most of these so called professional installers are hungry hustlers it's what happens when you have only one source of income + naturally greedy join. Na why e no too good to rent house from landlord wey be say na the only Source of inCome He's got be that - if children school Fees increase, or rice add money, Oga go increase house rent. if Nepa bring bill of 100 naira, Oga go add him own + pocket money join.

Most times, You're better off selling things yourself. Ask anyOne. Most people wey give their call or land to someone to sell for them are yet to get a Buyer not because there are no Buyers yet BUT because the extra Price the assistant Seller added is too much potential Buyers are running away.

Also if you don't plan Charging with grid (NEPA / Fuel Generator), why not just get an external charge Controller and be done with things.

Also Oga, abeg try dey space your writeup so as not to stress people's eyes, e specially people like me wey no dey too get time read completely - na scan I dey scan in-between browser tabs

oweniwe:
How do you deal with lightning please?

In April I connected DC phone chargers to charge controller load output section. One sudden lightning strike just before windy rain started blew all the chargers.

( Charge controller DC out - DC/DC buck converter - mobile chargers)

I thought my DC-DC buck converter could stop excess current if there's surge, .. for where? Lightning flew through it and the chargers bought out smoke in my front

Do you earth the charge controller output before passing to your devices?

Thanks for your anticipated response

You see that lightening matter, I no want say na luck. Because I've used charge controllers for years (since Yaradua/Goodluck Jonathan regime) yet never had such issue. mayBe it's because I use quality charge controllers, or because e never happen though there are sometimes loud and shaky lightnings.

For [some] clients, I install lightning arrester for them BUT for ma personal sef, nothing.

Would suggest you at least use properly sized fuses if not doing so already. Not even up to 6-years myself started using fuses in all my personal setUps


I would say, don't bet on luck because e never happen, no mean say e no fit happen. Take the step today

oweniwe:
How do you deal with lightning please?

In April I connected DC phone chargers to charge controller load output section. One sudden lightning strike just before windy rain started blew all the chargers.

( Charge controller DC out - DC/DC buck converter - mobile chargers)

I thought my DC-DC buck converter could stop excess current if there's surge, .. for where? Lightning flew through it and the chargers bought out smoke in my front

Do you earth the charge controller output before passing to your devices?

Thanks for your anticipated response

Are you sure it's lightning abi na overLoad you give am.

That load port has a specific load capacity you shouldn't go close too. Another is, it' voltage rating is battery bank dependent.

mayBe you tell us the spec (input voltage and current) of the DC phone chargers , then the size of your solar battery bank

Royle2014:
So guys. I've had a 5kva Yohako non hybrid inverter i bought back then for an installation but i never used. Now i have a 10kwh lithium battery and i want to install it. However, an engineer told me that i need to get a smart hybrid inverter because installing my non hybrid yohako inverter would ruin my lithium battery because it's not smart and wont be able to set cut off voltage etc... He's suggesting that he can help me sell off my 5kva 48v Yohako, I'll add like 100k (amount to buy a stand alone charge controller) and he'll get me a smart inverter of 3.5kva or 4.3kva for 350k....so he plans on selling a 5kva brand new Yohako for 250k. The whole thing sounds fishy to me....is he telling the truth or can i go ahead and use the Yohako 5kva with the 10kwh lithium i have?. I already have 4 590watts panels, all i need to do is to order a charge controller and do the install. I dont plan to charge with grid fyi.... Strictly solar charging

the fact the inverter's packing box has been opened, it's regarded as USEd. The only difference is how much it's been used. As for the 250,000 naira ; I don't want to say He tried because I know one could get a 5kva used inverter (even prag product sef) for around 200,000 naira or a little less depending on negotiation.

Once again, would suggest you sell it yourself or just keep it as backUp abi the Hybrid you wan buy no go spoil again ?

Me go suggest you buy an external charge controller capable of doing what's required especially when you said already you don't plan using grid for charging

bassdow:
Are you sure it's lightning abi na overLoad you give am.

That load port has a specific load capacity you shouldn't go close too. Another is, it' voltage rating is battery bank dependent.

mayBe you tell us the spec (input voltage and current) of the DC phone chargers , then the size of your solar battery bank

That time It was just about 1.5v 3.5a (4 units)) car chargers wired to the DC buck converter.

Set up:

2units of 300w panels

One powmr cc .... The one with blue metal and blue light wey no dey off (why will they do electric equipment wey LCD light no dey off still baffles me)

One 220ah tubular battery

The fuse idea makes sense.

Will implement it ASAP

bassdow:
First thing is, even non hybrid inverters can handle Lithium batteries so long they've got the settings - some do have editable settings, while some have the option.
it's when it's got none of these 2 things, you should bother.

Secondly, most of these so called professional installers are hungry hustlers it's what happens when you have only one source of income + naturally greedy join. Na why e no too good to rent house from landlord wey be say na the only Source of inCome He's got be that - if children school Fees increase, or rice add money, Oga go increase house rent. if Nepa bring bill of 100 naira, Oga go add him own + pocket money join.

Most times, You're better off selling things yourself. Ask anyOne. Most people wey give their call or land to someone to sell for them are yet to get a Buyer not because there are no Buyers yet BUT because the extra Price the assistant Seller added is too much potential Buyers are running away.

Also if you don't plan Charging with grid (NEPA / Fuel Generator), why not just get an external charge Controller and be done with things.

Also Oga, abeg try dey space your writeup so as not to stress people's eyes, e specially people like me wey no dey too get time read completely - na scan I dey scan in-between browser tabs

NOR VEX

I
DON
SPACE
AM

THANKS FOR advice sha. I'll buy d controller and just use it like dat, entire family works 8am to 6pm so I dont even have loads like that. My night load won't be more than 250 watts at night. I bought the 10kwh lithium to account for days of no sunlight... So i doubt I'll use the battery so low that bms would cut it off itself.

I feel like going from a 5kva inverter to 3.5kva is a big downgrade incase i want to add more load in the future...

Royle2014:
NOR VEX

I
DON
SPACE
AM

THANKS FOR advice sha. I'll buy d controller and just use it like dat, entire family works 8am to 6pm so I dont even have loads like that. My night load won't be more than 250 watts at night. I bought the 10kwh lithium to account for days of no sunlight... So i doubt I'll use the battery so low that bms would cut it off itself.

I feel like going from a 5kva inverter to 3.5kva is a big downgrade incase i want to add more load in the future...

...and while shopping for a charge controller, don't forget ensuring it's got editable battery configurations or even supports lithium batteries - Should either support Lithium batteries, or have editable battery configuration

oweniwe:
That time It was just about 1.5v 3.5a (4 units)) car chargers wired to the DC buck converter.

Set up:

2units of 300w panels

One powmr cc .... The one with blue metal and blue light wey no dey off (why will they do electric equipment wey LCD light no dey off still baffles me)

One 220ah tubular battery

The fuse idea makes sense.

Will implement it ASAP

The bolded isn't clear enough. Not until we know who's actually at fault, no blaming yet

orkman:
A fire broke out in a garden and spread to three neighbouring properties after a solar panel battery system became alight.

Essex County and Fire Rescue Service were called to a shed at a property in Wickford at about 11:28 BST on Saturday.

Firefighters worked quickly to remove barbecue gas canisters from the site and stop the blaze from spreading further.

A spokesperson for the service said: "The fire started in a mini Battery Energy Storage System (BESS) connected to the solar panels. Our advice to anyone with solar panels is to ensure they are installed by a reputable, qualified company and maintained in line with the manufacturer's guidance."

Unless you are there physically, you can never get the details. News media must sell news at all cost.

A can justs parked in a compound is at risk bc it has battery and petrol.

SaintUlot:
How would you have solar installation in your house and you are still spending money to buy cooking gas and paying for fuel to transport yourself? That is an abomination, you are obviously shortchanging yourself, if you ain't optimising the immense benefit of your home solar installation.

Take your solar-powered lifestyle to the next level with this advanced electric bike, perfect for daily commutes and delivery businesses! This beast is FAST, keeping up with traffic effortlessly, covering a range of 200km on a single charge with a max speed of 57km/h.


https://www.youtube.com/watch?v=ejqmK4NvdHM

Check this thread for pictures:
https://www.nairaland.com/8493674/dual-motor-triple-battery-52v#136385243

Upgrade your solar-powered lifestyle to the next level
With this Ebike.

bassdow:
...and while shopping for a charge controller, don't forget ensuring it's got editable battery configurations or even supports lithium batteries - Should either support Lithium batteries, or have editable battery configuration

so how will he set low voltage disconnect on a dumb inverter

Valto:
so how will he set low voltage disconnect on a dumb inverter

No mind me, as the comment jam packed, didn't see the low cut off part. Thought issue was lithium battery charging support especially when He said he has no intention of using NEPA to charge.

Royle2014:
So guys. I've had a 5kva Yohako non hybrid inverter i bought back then for an installation but i never used. Now i have a 10kwh lithium battery and i want to install it. However, an engineer told me that i need to get a smart hybrid inverter because installing my non hybrid yohako inverter would ruin my lithium battery because it's not smart and wont be able to set cut off voltage etc... He's suggesting that he can help me sell off my 5kva 48v Yohako, I'll add like 100k (amount to buy a stand alone charge controller) and he'll get me a smart inverter of 3.5kva or 4.3kva for 350k....so he plans on selling a 5kva brand new Yohako for 250k. The whole thing sounds fishy to me....is he telling the truth or can i go ahead and use the Yohako 5kva with the 10kwh lithium i have?. I already have 4 590watts panels, all i need to do is to order a charge controller and do the install. I dont plan to charge with grid fyi.... Strictly solar charging

Like either @dollarnaira or fuckboys will say,na who get sense they use solar.Your 5kva 48v Yohako inverter have editable charge settings.You can post the pics here let's see.

If you have free money you can let him buy it off oi,but you can use your inverter with the Lithium battery.I use my Luminous inverter with my Lifeoi4 battery,I just selected SMF as charging option..Never had any issues so far.

Like I said,hybrid smart inverter is preferred,but if you have a 5kva Yohako,I know it has editable voltage setting

Royle2014:
So guys. I've had a 5kva Yohako non hybrid inverter i bought back then for an installation but i never used. Now i have a 10kwh lithium battery and i want to install it. However, an engineer told me that i need to get a smart hybrid inverter because installing my non hybrid yohako inverter would ruin my lithium battery because it's not smart and wont be able to set cut off voltage etc... He's suggesting that he can help me sell off my 5kva 48v Yohako, I'll add like 100k (amount to buy a stand alone charge controller) and he'll get me a smart inverter of 3.5kva or 4.3kva for 350k....so he plans on selling a 5kva brand new Yohako for 250k. The whole thing sounds fishy to me....is he telling the truth or can i go ahead and use the Yohako 5kva with the 10kwh lithium i have?. I already have 4 590watts panels, all i need to do is to order a charge controller and do the install. I dont plan to charge with grid fyi.... Strictly solar charging

Dumb inverter should cut off between 42 and 44v.

Good evening all.

Any solar installer in benin city here?

omotoda:
Like either @dollarnaira or fuckboys will say,na who get sense they use solar.Your 5kva 48v Yohako inverter have editable charge settings.You can post the pics here let's see.

If you have free money you can let him buy it off oi,but you can use your inverter with the Lithium battery.I use my Luminous inverter with my Lifeoi4 battery,I just selected SMF as charging option..Never had any issues so far.

Like I said,hybrid smart inverter is preferred,but if you have a 5kva Yohako,I know it has editable voltage setting

Unfortunately this one doesn't. Had to connect to battery terminal and turn it on just to show u.

I have checked d manual both online and offline but no secret menu

Valto:
so how will he set low voltage disconnect on a dumb inverter

What do u think about this charge controller. Its 185k for 60am pv max is 200v... Has Bluetooth functionality to monitor stuff via your phone and can set lithium parameters allegedly or can u recommend something even cheaper but still good? Ktech charge controller

Valto:
so how will he set low voltage disconnect on a dumb inverter

In his use case he has no need for smart inverter. He's good and better off with his 5kva inverter because he ont uses it at night and with his load, there's no way he'll ever get near low voltage. All he needs is a charge controller.

I've been using your lithium in a place for clocking 2 years with an old inverter and an external cc handles changing. From night to morning we never get even to 70% soc by morning.
If in worse scenario it happens that it gets low, the BMS has been set to cut off battery and, of course inverter, at a safe specific voltage.

You don't need a new smart inverter. All you need is anything reliable that can invert pure sine wave for you and you can work with LFP. That's if you know what you doing.

Royle2014:
Unfortunately this one doesn't. Had to connect to battery terminal and turn it on just to show u.

I have checked d manual both online and offline but no secret menu

It's not from the screen.
Check around the body.
There should be physical buttons or something around the body to choose battery type. Check well.
But even if you don't find, you don't need to worry. Just get a charge controller that you can edit. You've explained that you'll never run the battery even half way, so no wahala

Press and hold the function button, you should be able to adjust your charging voltage and cutoff from there.

Royle2014:
Unfortunately this one doesn't. Had to connect to battery terminal and turn it on just to show u.

I have checked d manual both online and offline but no secret menu

Royle2014:
What do u think about this charge controller. Its 185k for 60am pv max is 200v... Has Bluetooth functionality to monitor stuff via your phone and can set lithium parameters allegedly or can u recommend something even cheaper but still good? Ktech charge controller

Felicity 80A cc is about180k.