Opinions on Mecer Inverter

[Napalm]

I'm guessing... Simulated Sinewave and Modified Sinewave is one and the same thing.


Found this link :

http://www.minutemanups.com/support/pwr_un10.php

 

[grim101]

How do you know when your batteries are at 50%? What must the voltage be at 50%. Using mecer 24v inverter. 2×105ah batteries wired for 24v.

 

[BigEars]

How do you know when your batteries are at 50%? What must the voltage be at 50%. Using mecer 24v inverter. 2×105ah batteries wired for 24v.

Depends on the load. Big load draws batteries down quicker.
Light load lasts a long time.

Cut off depends on knowing where to stop the discharge in time. Safe if you are in the 10% to 50% DOD area. Preferably not more than than that....depends on load.

A few graphs here (again).. View attachment State_Of_Charge_Ver_Voltage_2004+.pdf

 

[grim101]

Thanks. Dont the inverter tell you the voltage of the batteries?

 

[KOPITE]

Thanks. Dont the inverter tell you the voltage of the batteries?

Unless you buy an inverter with a LCD display on it.

 

[grim101]

The mecer inverter has a lcd screen but dont know what it shows.

 

[BigEars]

Thanks. Dont the inverter tell you the voltage of the batteries?

Sigh

Please read the relevant threads. Lots of info here if you care to take the time

This over and over explaining stuff is driving me to drink (more)

People just want answers these days...do not want to understand stuff. Everything must work like Magic..

Better to understand what you are doing and why than to simply ask Internet questions.

And yes..I am a miserable old bastard that is tired of repeating myself over and over.

 

[Napalm]

You can buy those battery health meters at outdoorwarehouse. (you get them in single battery and double battery health checking one's)

http://www.outdoorwarehouse.co.za/national-luna-battery-monitor-double.html


It shows you an led lit and voltages...

 

[grim101]

You can buy those battery health meters at outdoorwarehouse. (you get them in single battery and double battery health checking one's)

http://www.outdoorwarehouse.co.za/national-luna-battery-monitor-double.html


It shows you an led lit and voltages...

Thanks. Will get myself one of those.

 

[Dan C]

mecer is noisy as hell (i thought it would make some noise) but no one said it's so loud that you can hear it from 10meters away.

I mean the fan is like one of those 220volt server fans.. running 24/7. (it's like opening up your computer box and that fan's noise must be 4-5 times louder than that)

What size is the fan ? From my measurements it's 80x80 ? I want to replace mine with a low db fan, but don't want buy the wrong size. I could drill some holes at top and install a bigger one that runs on a lower rpm ... or even have a dimmer switch to calm it down a bit once the batteries are charged.

 

[Napalm]

i'm guessing 80mm yes.. problem you'll find is that this is not a 12v fan. This is like the fans you get in servers. It's pushing 220volt to the fan.

So you have to exchange it with another 220v fan and they are all noisy as hell. (you can try to take the voltage down from 220v to 12v but that will require some hardware and knowhow.)


i am guessing that a bigger size fan would make less noise (less like a turbine) but will make more wind (if the fan dimensions are bigger it will blow a bigger volume of air)

 

[Napalm]

Cape Town : STAGE 1 LOAD SHEDDING SCHEDULED FROM 17:00


http://ewn.co.za/assets/loadshedding/capetown.html

 

[Dan C]

i'm guessing 80mm yes.. problem you'll find is that this is not a 12v fan. This is like the fans you get in servers. It's pushing 220volt to the fan.

So you have to exchange it with another 220v fan and they are all noisy as hell. (you can try to take the voltage down from 220v to 12v but that will require some hardware and knowhow.)


i am guessing that a bigger size fan would make less noise (less like a turbine) but will make more wind (if the fan dimensions are bigger it will blow a bigger volume of air)

Ok, I changed the fan.. runs way quieter... but now the unit is in panic mode !! damnit.

 

[Napalm]

Panic mode?? (what does that mean?)

Does it not work correctly ? or has it detected different hardware?

 

[Dan C]

Panic mode?? (what does that mean?)

Does it not work correctly ? or has it detected different hardware?

Constant beeeeeeeeeeeeeeeep

 

[Dimpie (COMPUTEK)]

Is there a way to connect solar to these units ?

 

[Dan C]

Is there a way to connect solar to these units ?

I wouldn't try that. I opened mine and to say the least it's not very good quality to start of with.

*update - back to origal 12v fan. Unit is happy now for some reason ... next plan ..?

 

[dunkyd]

Just going to use mine as an inverter. Forget the ups side and the fan 24/7. Just switch on when Gridwatch sends you a PM.

 

[Napalm]

Dan C, is there 3 wires connected to the fan ? (some fans / hardware can monitor the fan speed)

So there's a positive(red) , Ground(black( and then regulator (yellow).

The regulator can be for monitor or control. (so if the fan goes below a certain amount of revolutions.. it will alert your motherboard or device. or if the fan dies it gives an alert)

 

[Dan C]

Dan C, is there 3 wires connected to the fan ? (some fans / hardware can monitor the fan speed)

So there's a positive(red) , Ground(black( and then regulator (yellow).

The regulator can be for monitor or control. (so if the fan goes below a certain amount of revolutions.. it will alert your motherboard or device. or if the fan dies it gives an alert)

Yes it has three, exactly the same as a PC fan. I used a Lian Li fan. Seems it was running too slow and the unit panicked.