NewStats: 3,261,625 , 8,174,545 topics. Date: Thursday, 29 May 2025 at 07:46 PM 5f5529

HeavenlyBang:


SAKO is garbage, no one recommends it here anymore for a reason. Send that battery back and get your money back.

You for at least add small technicals small.
I was planning to make videos about importance of efficiency in our inverters.

Reason why I attached an External Shunt permanently to my Batteries..

His is using an Inverter that consume 45w and plus other loads.

HeavenlyBang:


SAKO is garbage, no one recommends it here anymore for a reason. Send that battery back and get your money back.

Oh my God😳😳😳

What have I gotten myself into?

Dam5reey1:


You for at least add small technicals small.
I was planning to make videos about importance of efficiency in our inverters.

Reason why I attached an External Shunt permanently to my Batteries..

His is using an Inverter that consume 45w and plus other loads.

Please what does the external shunt do?

And are there inverters that consume less?

Dam5reey1:


You for at least add small technicals small.
I was planning to make videos about importance of efficiency in our inverters.

Reason why I attached an External Shunt permanently to my Batteries..

His is using an Inverter that consume 45w and plus other loads.

that's why I love those external stunts, my sukam 1.5kva at no load draws just 9w even as a transformer based inverter.

KudozInteriors:


Please what does the external shunt do?

And are there inverters that consume less?

monitor in and out energy usage of your battery pack.

fuckboys:
monitor in and out energy usage of your battery pack.

Does it in any way help in reducing energy consumption of the system?

KudozInteriors:


Does it in any way help in reducing energy consumption of the system?

no it doesn’t, it helps monitor your energy consumptions.

You can play around your appliances and know the ones that drain your battery the most.

Dam5reey1:


You for at least add small technicals small.
I was planning to make videos about importance of efficiency in our inverters.

Reason why I attached an External Shunt permanently to my Batteries..

His is using an Inverter that consume 45w and plus other loads.

70w fan + 45w = 115w
From 10pm to 8am = 10 hours = 1150wh


Assuming three phones charging at 30w for three hours = 270wh

Total is 1420wh

Even considering inverting losses, total DC usage shouldn't be more than 1600wh, and yet he's losing ~2500wh.

I think the discrepancy is enough to chalk it up to a bad battery.

HeavenlyBang:


70w fan + 45w = 115w
From 10pm to 8am = 10 hours = 1150wh


Assuming three phones charging at 30w for three hours = 270wh

Total is 1420wh

Even considering inverting losses, total DC usage shouldn't be more than 1600wh, and yet he's losing ~2500wh.

I think the discrepancy is enough to chalk it up to a bad battery.

Oh my God😳😳😳🙆🏽‍♂️

Boss I’m even using a new Qasa standing fan that consumes 25watts. You did your calculations with my previous fan which was 70watts. That means my load overnight is not even meant to consume up to 1500wh😳🙆🏽‍♂️

Hello house can I use Ac cable to connect solar s down to the inverter?

HeavenlyBang:


70w fan + 45w = 115w
From 10pm to 8am = 10 hours = 1150wh


Assuming three phones charging at 30w for three hours = 270wh

Total is 1420wh

Even considering inverting losses, total DC usage shouldn't be more than 1600wh, and yet he's losing ~2500wh.

I think the discrepancy is enough to chalk it up to a bad battery.

So the house was in Black out..
His needs to pay attention to details.
This batteries in questions is not anyhow batteries, it has communication as well as Screens that shows Current consumption but he decided to use Bars when BMS shows SOC in it's screen.
He should show what the Batteries current displays and at what percentages.

KudozInteriors:
Good morning great minds
Please I'm having a serious issue.

I got advise here for my load to buy at least 3.5Kwh battery but then my installer advised me to just close eye and buy 5Kwh which I did. I was too busy that period and I'd made calls for prices and gave him money to get them for me…it was Sako that he brought. I’d done some things with the man on the past and he was trustworthy. I didn’t know anything about the product but I trusted him.

Now, here’s the issue. The battery was running down fast with just my standing fan of 70watts and charging of phones. It would go from full charge to less than 50% by morning even though I started the system around 10pm. I had to send it back. The factory tested it for 2 weeks and said the battery was good but that we have been charging it wrongly. They told the man (my installer) how to set the inverter to charge it well. I think they said it should charge at 15amps or so.

Few days ago, I bought Scanfrost Inverter freezer. The freezer is amazing…starts running at 145watts and goes down to about 45 to 50watts in the space of 2 to 3 hours when the compartments have maintained a certain temperature. My battery charged full yesterday as I wasn’t around and didn’t use it during the day time (I’m using 4pcs of 550watts for now). I ran the freezer from 7pm till 7am this morning and the battery that has 6bar has gone down to 1bar which means it’s already less than 15%. Only a standing fan of 25watts and the freezer were the loads on it. Please is this right?

Attached below are pictures of the load rating I met this morning; the battery bar signal; and my setup (not a neat one though due to some back and forth, had to change the inverter at some point thinking it might be the problem; but we plan on confirming that the system works well before looking for aesthetics)

PLEASE HELP ME🙏🏼🙏🏼🙏🏼
Thank you so much

What you've said isn't sufficient to say your battery is bad, you seem to be using the inverter screen for your measurement and that would most likely give you wrong information.

Use the battery's screen, snap the SOC and remaining Amps and let's see what you have.

fuckboys:
Please who sells the original of this here?

Even the print on this looks like photocopy

Dam5reey1:


So the house was in Black out..
His needs to pay attention to details.
This batteries in questions is not anyhow batteries, it has communication as well as Screens that shows Current consumption but he decided to use Bars when BMS shows SOC in it's screen.
He should show what the Batteries current displays and at what percentages.

Exactly

KudozInteriors:


Oh my God😳😳😳

What have I gotten myself into?

Your load is obviously consuming the batteries. Post screenshots of the percentage on the batteries and voltage also the current when you are discharging and Charging.

You dont need to be looking at 1 bar 2 bars or 6 bars.

KudozInteriors:
Good morning great minds
Please I'm having a serious issue.

I got advise here for my load to buy at least 3.5Kwh battery but then my installer advised me to just close eye and buy 5Kwh which I did. I was too busy that period and I'd made calls for prices and gave him money to get them for me…it was Sako that he brought. I’d done some things with the man on the past and he was trustworthy. I didn’t know anything about the product but I trusted him.

Now, here’s the issue. The battery was running down fast with just my standing fan of 70watts and charging of phones. It would go from full charge to less than 50% by morning even though I started the system around 10pm. I had to send it back. The factory tested it for 2 weeks and said the battery was good but that we have been charging it wrongly. They told the man (my installer) how to set the inverter to charge it well. I think they said it should charge at 15amps or so.

Few days ago, I bought Scanfrost Inverter freezer. The freezer is amazing…starts running at 145watts and goes down to about 45 to 50watts in the space of 2 to 3 hours when the compartments have maintained a certain temperature. My battery charged full yesterday as I wasn’t around and didn’t use it during the day time (I’m using 4pcs of 550watts for now). I ran the freezer from 7pm till 7am this morning and the battery that has 6bar has gone down to 1bar which means it’s already less than 15%. Only a standing fan of 25watts and the freezer were the loads on it. Please is this right?

Attached below are pictures of the load rating I met this morning; the battery bar signal; and my setup (not a neat one though due to some back and forth, had to change the inverter at some point thinking it might be the problem; but we plan on confirming that the system works well before looking for aesthetics)

PLEASE HELP ME🙏🏼🙏🏼🙏🏼
Thank you so much

I don't think any thing is wrong with your battery, with the picture you posted,the inverter is showing the battery voltage 26v, meaning it still has more energy in the battery

jonescosmos:
This looks fake to me, I know the OEM to be Hager not TOMZN. Moreso, the model has failed multiple times at currents greater than 40A.
I recommend you use the MTS MCB as attached below if your load is going be more than 32A. This has an internal mechanical interlock that switches off the common load when you switch on the backup load and vice-versa.

is this a dc breaker?
It's a dc breaker i need.

Guyincna:
Hello house can I use Ac cable to connect solar s down to the inverter?

Yes, you can. but is it recommended? No.

Dam5reey1:


So the house was in Black out..
His needs to pay attention to details.
This batteries in questions is not anyhow batteries, it has communication as well as Screens that shows Current consumption but he decided to use Bars when BMS shows SOC in it's screen.
He should show what the Batteries current displays and at what percentages.

My bad, the image he shared didn't load for me before I made that comment.

KudozInteriors:


Oh my God😳😳😳

What have I gotten myself into?

The picture you shared shows the battery reading on the inverter. That's effectively worthless, since it's a reading almost entirely based on the delta between battery voltage and charge voltage set on the inverter. Stop using that to judge your battery state of charge; do that with the battery itself.

Before you sleep tonight, check the power draw on your battery (you can do that on your inverter or the battery itself).

Record that figure
Record your battery SoC/capacity left before sleeping (this should be from the battery itself)
Then check the SoC/capacity when you wake up


The first figure should be power draw on battery. On this inverter, it should be listed as OUTPUTBATT

Get back to us tomorrow morning with these figures.

KudozInteriors:


Please what does the external shunt do?

And are there inverters that consume less?

The advice you were given by Dam5reey1 is the best so far. Try and get an external shunt or coulometer to independently measure what is actually leaving your battery (and coming into it for some).

This will for once and for all clear up the capacity issue and give you a stronger leg to stand on if you need to argue with Sako that their battery is not meeting expectation.

This will solve a lot of issues some people are having here as trusting some inverters and even some BMSs is not a good way to monitor the ability of a battery or solar setup.

Juror:


What you've said isn't sufficient to say your battery is bad, you seem to be using the inverter screen for your measurement and that would most likely give you wrong information.

Use the battery's screen, snap the SOC and remaining Amps and let's see what you have.

Okay sir. I’ll do this once I get home today and send across.

I don’t know what SOC mean though because the battery screen is always off unless you press the buttons beside it.

I don’t know what I’m looking for when the screen comes up unless it will be written SOC there.

Thank you.

Dam5reey1:



Your load is obviously consuming the batteries. Post screenshots of the percentage on the batteries and voltage also the current when you are discharging and Charging.

You dont need to be looking at 1 bar 2 bars or 6 bars.

The battery doesn’t display percentage like some other batteries unless I don’t understand what you mean by that sir.

Thank you.

obinna37:
I don't think any thing is wrong with your battery, with the picture you posted,the inverter is showing the battery voltage 26v, meaning it still has more energy in the battery

Wow…I’ll check on the SOC in the battery as said and give by tomorrow then.

Thank you.

HeavenlyBang:


My bad, the image he shared didn't load for me before I made that comment.



The picture you shared shows the battery reading on the inverter. That's effectively worthless, since it's a reading almost entirely based on the delta between battery voltage and charge voltage set on the inverter. Stop using that to judge your battery state of charge; do that with the battery itself.

Before you sleep tonight, check the power draw on your battery (you can do that on your inverter or the battery itself).

Record that figure
Record your battery SoC/capacity left before sleeping (this should be from the battery itself)
Then check the SoC/capacity when you wake up


The first figure should be power draw on battery. On this inverter, it should be listed as OUTPUTBATT

Get back to us tomorrow morning with these figures.

Okay sir
I’ll surely do this and get back to you.

Thank you.

AndroBlaze:


The advice you were given by Dam5reey1 is the best so far. Try and get an external shunt or coulometer to independently measure what is actually leaving your battery (and coming into it for some).

This will for once and for all clear up the capacity issue and give you a stronger leg to stand on if you need to argue with Sako that their battery is not meeting expectation.

This will solve a lot of issues some people are having here as trusting some inverters and even some BMSs is not a good way to monitor the ability of a battery or solar setup.

Please how and where can I get this external shunt or coulometer?

Thank you.

KudozInteriors:


Please how and where can I get this external shunt or coulometer?

Thank you.

The attached picture is usually the cheapest and a quite reliable shunt. You can also search Jiji and Konga to get better prices by using search words like "shunt", "coulometer", "energy meter" and "coulomb".

However, note that the above can only properly measure energy going one way (either charging, or discharging). If you want one that can measure energy going both ways (at the same time) you need to use the kind that clearly states so, like the type Dam5reey1 uses in his videos. Linnov8 sell that I believe.

KudozInteriors:


The battery doesn’t display percentage like some other batteries unless I don’t understand what you mean by that sir.

Thank you.

It does. It will show you capacity and remaining Ah. Use the menu button to get there it will show it you. Don't be afraid to press those buttons on the battery as you can't really change any setting from using the buttons.

However, like I said before do not fully depend on anything the battery tells you. Get something independent to confirm it's capacity.

Guyincna:
look at what I highlighted. Using those cables will it give u the best out put and no lose of power, like how reliable is it?

Why is suggested the size is because his voltage is higher and current is below 25A. Whatever the loss in voltage is will not affect the cc performance like that.

If you can get original Coleman, please go for it and size it base on your voltage and current

bbally:


Why is suggested the size is because his voltage is higher and current is below 25A. Whatever the loss in voltage is will not affect the cc performance like that.

If you can get original Coleman, please go for it and size it base on your voltage and current

thanks

Original Brand new 450w and 555w jinko solar s available
450w price #115,000
555w price #125,000

Call or WhatsApp me on 09116033581 to place your orders,we deliver nationwide💯

AndroBlaze:


The attached picture is usually the cheapest and a quite reliable shunt. You can also search Jiji and Konga to get better prices by using search words like "shunt", "coulometer", "energy meter" and "coulomb".

However, note that the above can only properly measure energy going one way (either charging, or discharging). If you want one that can measure energy going both ways (at the same time) you need to use the kind that clearly states so, like the type Dam5reey1 uses in his videos. Linnov8 sell that I believe.

Thank you so much. Which do you advise I go for please?

Or rather, will the one-way serve properly for the purpose I’m needing it?

Mr. Linnov8, how much do you sell yours please?

AndroBlaze:


It does. It will show you capacity and remaining Ah. Use the menu button to get there it will show it you. Don't be afraid to press those buttons on the battery as you can't really change any setting from using the buttons.

However, like I said before do not fully depend on anything the battery tells you. Get something independent to confirm it's capacity.

Okay sir
Thank you so much🙏🏼
I’ll use the buttons, snap the values there and send here when I get home.