Opinions on Mecer Inverter

[SilverNodashi]

Hi All. I have the 2400 Mecer. It is running like an UPS. When the power goes off, anything connected goes off and then comes back on again. I have 2 lights, 32inchLCD, explora decoder and a soundbar connected.

Any idea's?

That's because those inverters aren't "on-line" inverters but rather standby. i.e. it bypasses the batteries when eskom is connected, and switch over to the batteries when eskom fails. The more expensive solutions don't do this though, they run everything through the batteries to ensure 100% uptime

 

[shearder]

These inverters (mecer) if they are 1 battery or 2 batteries can one add.more batteries in parallel??

 

[TheChamp]

These inverters (mecer) if they are 1 battery or 2 batteries can one add.more batteries in parallel??

Yes, but it is always better not to have a mix of new and old batteries on the system, I bought two extra batteries when I bought my Ellies inverter.

 

[shearder]

Yes, but it is always better not to have a mix of new and old batteries on the system, I bought two extra batteries when I bought my Ellies inverter.

Good practise. Thanks. Where do you get the Ellies? Are they much of a muchness?

 

[TheChamp]

Good practise. Thanks. Where do you get the Ellies? Are they much of a muchness?

It is the same thing as the Mercer, I got it at Makro a couple of years back.

 

[shearder]

It is the same thing as the Mercer, I got it at Makro a couple of years back.

Thanks will check it out

 

[FlashSA]

NECRO

I'm looking at purchasing an additional inverter. Those who own the Mecer unit with the blue LCD screen - what is the final verdict on the fan - does it turn off when the battery is fully charged or does it run 24/7?

 

[RedViking]

NECRO

I'm looking at purchasing an additional inverter. Those who own the Mecer unit with the blue LCD screen - what is the final verdict on the fan - does it turn off when the battery is fully charged or does it run 24/7?

I have the 24V one. It turns off when fully charged, and when it is charging it really is not that loud.

Select the deep cycle battery option when you buy.

12V

https://www.geewiz.co.za/long-run-u...t-720w.html?search_query=Inverter+&results=83


Or
12V
https://www.geewiz.co.za/long-run-u...5ah-battery-8-hour-battery-life-kit-720w.html


Or
24V
https://www.geewiz.co.za/long-run-u...ah-battery-8-hour-battery-life-kit-1440w.html

 

[Koosvanwyk]

NECRO

I'm looking at purchasing an additional inverter. Those who own the Mecer unit with the blue LCD screen - what is the final verdict on the fan - does it turn off when the battery is fully charged or does it run 24/7?

You can by a 600W pure sine wave UPS plus two 105Ah batteries for a lower price than the mercer unit and batteries (which is modified sine wave). If you want to use the UPS to supply power for the entire time that Eskom is down there is no use in baying anything above 600w (it is a different story if you need the UPS just to give you time to switch down equipment that require a lot of watts in case of load shedding). If you use the entire 1400w available those 100Ah batteries will be well below 50% charge in an hour. You can add more batteries, but the mercer unit only supply a 20Ah charge, meaning it will take very long to get the batteries back up to say 80%.

It has been my experience with the mercer units that they show on the LCD display that the batteries are 100%, but if you measure the volts on the battery it is normally just below 12v where a true 100% charge is only achieved at close to 14v. If continually deprived, the battery will eventually lose the ability to accept a full charge and the performance will decrease due to sulfation

 

[RedViking]

You can by a 600W pure sine wave UPS plus two 105Ah batteries for a lower price than the mercer unit and batteries (which is modified sine wave). If you want to use the UPS to supply power for the entire time that Eskom is down there is no use in baying anything above 600w (it is a different story if you need the UPS just to give you time to switch down equipment that require a lot of watts in case of load shedding). If you use the entire 1400w available those 100Ah batteries will be well below 50% charge in an hour. You can add more batteries, but the mercer unit only supply a 20Ah charge, meaning it will take very long to get the batteries back up to say 80%.

It has been my experience with the mercer units that they show on the LCD display that the batteries are 100%, but if you measure the volts on the battery it is normally just below 12v where a true 100% charge is only achieved at close to 14v. If continually deprived, the battery will eventually lose the ability to accept a full charge and the performance will decrease due to sulfation

Link to UPS please and that it will be able to charge 2x105Ah within a reasonable time without overheating.
I agree that you don't need more than that unless you connect an extra 4-6 batteries to handle the load. Even 600W with only 2x105Ah batteries won't get you far.

 

[TheChamp]

You can by a 600W pure sine wave UPS plus two 105Ah batteries for a lower price than the mercer unit and batteries (which is modified sine wave). If you want to use the UPS to supply power for the entire time that Eskom is down there is no use in baying anything above 600w (it is a different story if you need the UPS just to give you time to switch down equipment that require a lot of watts in case of load shedding). If you use the entire 1400w available those 100Ah batteries will be well below 50% charge in an hour. You can add more batteries, but the mercer unit only supply a 20Ah charge, meaning it will take very long to get the batteries back up to say 80%.

It has been my experience with the mercer units that they show on the LCD display that the batteries are 100%, but if you measure the volts on the battery it is normally just below 12v where a true 100% charge is only achieved at close to 14v. If continually deprived, the battery will eventually lose the ability to accept a full charge and the performance will decrease due to sulfation

Which makes the UPS option not viable for the load shedding we are currently experiencing, I am very grateful for the 20A built in charger on my inverter.

 

[TheChamp]

Link to UPS please and that it will be able to charge 2x105Ah within a reasonable time without overheating.
I agree that you don't need more than that unless you connect an extra 4-6 batteries to handle the load. Even 600W with only 2x105Ah batteries won't get you far.

It works when you are not under pressure to charge the batteries before the next round of loadshedding, I survived many a load shedding with this setup and no issues. But it will just fall short with the way things are now. One thing I miss is how silent the UPS was compared to the buzzing Ellies inverter.

 

[RedViking]

It works when you are not under pressure to charge the batteries before the next round of loadshedding, I survived many a load shedding with this setup and no issues. But it will just fall short with the way things are now. One thing I miss is how silent the UPS was compared to the buzzing Ellies inverter.

Like you said, with the short times between loadshedding this is just not a solution. It would be nice if I could hear an Ellies inverter as the noise seems to be an common complaint. I am very impressed with the 24V Mecer I have, for now anyways. Would like to add another 2 batteries, solar charger and 2 panels, it should be fine then to take me through emergencies like yesterday when we were out for 15 hours.

 

[TheChamp]

Like you said, with the short times between loadshedding this is just not a solution. It would be nice if I could hear an Ellies inverter as the noise seems to be an common complaint. I am very impressed with the 24V Mecer I have, for now anyways. Would like to add another 2 batteries, solar charger and 2 panels, it should be fine then to take me through emergencies like yesterday when we were out for 15 hours.

My only issue is that I don't have space like a garage to put the inverter, therefore I am stuck with it in the lounge where I am supposed to be chilling and feeling good about myself during load shedding.

With the extended hours of load shedding the fan takes forever before switching off.

 

[RedViking]

My only issue is that I don't have space like a garage to put the inverter, therefore I am stuck with it in the lounge where I am supposed to be chilling and feeling good about myself during load shedding.

With the extended hours of load shedding the fan takes forever before switching off.

lol.
Mine is under my desk. It is about on the same level as my PC on my desk, maybe a bit louder. But for a temporary solution it is fine. If load-shedding continues like it does, the only real solution will be a proper system anyways.

On a side note, with the 15 hours without power yesterday, town was in absolute chaos (and there are areas where it goes on for days). You would think your bigger shops like Checkers, PnP, Woolworth, Spar would be prepared for something like this, but they were not. All the fridges were off. The damage would probably be millions. If it was another couple of hours, town would have to close down. Even MTN & Vodacom was offline with 2g/3g connection now and then. Telkom..... lets don't go there.

We can have the best system at home, but if we don't have access to basic needs it is useless.

 

[KleinBoontjie]

lol.
Mine is under my desk. It is about on the same level as my PC on my desk, maybe a bit louder. But for a temporary solution it is fine. If load-shedding continues like it does, the only real solution will be a proper system anyways.

On a side note, with the 15 hours without power yesterday, town was in absolute chaos (and there are areas where it goes on for days). You would think your bigger shops like Checkers, PnP, Woolworth, Spar would be prepared for something like this, but they were not. All the fridges were off. The damage would probably be millions. If it was another couple of hours, town would have to close down. Even MTN & Vodacom was offline with 2g/3g connection now and then. Telkom..... lets don't go there.

We can have the best system at home, but if we don't have access to basic needs it is useless.

Where do you live? Sounds like you guys had it bad there

 

[RedViking]

Where do you live? Sounds like you guys had it bad there

No actually not. KZN. It was probably just damage because of loadshedding. Usually it is only 2 hours or nothing some days.

 

[Zuner]

lol.
Mine is under my desk. It is about on the same level as my PC on my desk, maybe a bit louder. But for a temporary solution it is fine. If load-shedding continues like it does, the only real solution will be a proper system anyways.

On a side note, with the 15 hours without power yesterday, town was in absolute chaos (and there are areas where it goes on for days). You would think your bigger shops like Checkers, PnP, Woolworth, Spar would be prepared for something like this, but they were not. All the fridges were off. The damage would probably be millions. If it was another couple of hours, town would have to close down. Even MTN & Vodacom was offline with 2g/3g connection now and then. Telkom..... lets don't go there.

We can have the best system at home, but if we don't have access to basic needs it is useless.

With regards to the mecer inverter, which version do you have ? 12v or 24v and if 24v which wattage version?

My main question is, with the 20ms changeover time being a bit high, do your electronics stay on or suffer any issues as a result?

Looking at getting the mecer 24v 1440w version and my concerns are:
Noise, buzzing when not in use (ie eskom is live)
fan not turning off - How do i know if i'm ordering the newer version which turns the fan off after batteries are full.
change over time killing my pc when the power trips.

Your input will be greatly appreciated.

 

[RedViking]

With regards to the mecer inverter, which version do you have ? 12v or 24v and if 24v which wattage version?

My main question is, with the 20ms changeover time being a bit high, do your electronics stay on or suffer any issues as a result?

Looking at getting the mecer 24v 1440w version and my concerns are:
Noise, buzzing when not in use (ie eskom is live)
fan not turning off - How do i know if i'm ordering the newer version which turns the fan off after batteries are full.
change over time killing my pc when the power trips.

Your input will be greatly appreciated.

I have this one with deep cycle batteries: https://www.geewiz.co.za/long-run-u...0w.html?search_query=mecer+inverter&results=9

It changes over without any issues (online mode). LED Light Panel goes on and off but it doesn't effect my PC's or Printer etc.

I will post videos soon on what it sounds like. Watch this space.

 

[RedViking]

@Zuner

I'll post more info in this thread: https://mybroadband.co.za/forum/threads/mecer-2400va-inverter-review.1015178/#post-23157458