Mecer 2400VA Inverter (Community Support) - Part 2

TheChamp said:
Yeah, that's a good question, maybe low enough current draw not to spook the batteries? I have LA batteries that works well for my 15 inch TV and routers, good runtime, but they totally fall apart when I plug the 32 inch and PC.
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I think you are right here. Also the load test that is done by battery dealers is normally to test if a battery can crank an engine not last for a constant draw over a few hours. I've got a set of lead acids that test perfectly healthy at the battery shops, (took them to a couple to test) but they don't last 30 minutes with a 180 W load but can last at least 2 hours to run the tv and decoder. So I think the OP's batteries are sulphated and need replacing.
Edit: typo 180 A to 180 W :X3:
 
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Mike Angelo said:
I think you are right here. Also the load test that is done by battery dealers is normally to test if a battery can crank an engine not last for a constant draw over a few hours. I've got a set of lead acids that test perfectly healthy at the battery shops, (took them to a couple to test) but they don't last 30 minutes with a 180 A load but can last at least 2 hours to run the tv and decoder. So I think the OP's batteries are sulphated and need replacing.
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How long is a 180A load supposed to last? That sounds pretty good for a 100Ah LA battery when you include Peukert's law. Those 100Ah are probably over 10 hours (C10).
1712406144966.png
 
wingnut771 said:
How long is a 180A load supposed to last? That sounds pretty good for a 100Ah LA battery when you include Peukert's law. Those 100Ah are probably over 10 hours (C10).
View attachment 1687161
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Running 2 in parallel should last at least 4 hours drawing them down to 50 % SOC. Could do that originally with them but sadly no longer.
 
Need advice, don't hate me for asking.

I previously had a 2400va but gave it to my dad.
I need a budget inverter, I've been looking at the Mecer 1200va for R2495 at takealot.
I already have 2 100ah deep cycle batteries.

I would need to power: 2 laptops, 3 screens and my 65" TV (I normally use my office setup during work hours and TV outside work hours).

Would the 1200va be more than capable for these?
 
Jar-man said:
Need advice, don't hate me for asking.

I previously had a 2400va but gave it to my dad.
I need a budget inverter, I've been looking at the Mecer 1200va for R2495 at takealot.
I already have 2 100ah deep cycle batteries.

I would need to power: 2 laptops, 3 screens and my 65" TV (I normally use my office setup during work hours and TV outside work hours).

Would the 1200va be more than capable for these?
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Very likely will be able to carry them fine

The main draw back will be the charge rate this one is exactly half of the old machine

So the most you can charge back theoretically in 4hrs with a 4off 4on 4off stage 6 scenario is 1kwh
Probably less as lead acid tends to slow down and losses too

So no more than 200-250w load it may be ok, which the 2 laptops and 3 screens will likely fit in
 
Jar-man said:
Need advice, don't hate me for asking.

I previously had a 2400va but gave it to my dad.
I need a budget inverter, I've been looking at the Mecer 1200va for R2495 at takealot.
I already have 2 100ah deep cycle batteries.

I would need to power: 2 laptops, 3 screens and my 65" TV (I normally use my office setup during work hours and TV outside work hours).

Would the 1200va be more than capable for these?
Click to expand...
I assume you want to parallel the batteries seeing the inverter is 12V?

Other than that, 720W should be enough for 2 laptops and 3 screens or a 65" TV.

I would start saving for a 12V 100Ah LFP battery as lead acid batteries don't last that long with loadshitting.

Why not go 24V seeing you have 2 batteries already (just need balancer)?
1715722042750.png
 
Jar-man said:
Need advice, don't hate me for asking.

I previously had a 2400va but gave it to my dad.
I need a budget inverter, I've been looking at the Mecer 1200va for R2495 at takealot.
I already have 2 100ah deep cycle batteries.

I would need to power: 2 laptops, 3 screens and my 65" TV (I normally use my office setup during work hours and TV outside work hours).

Would the 1200va be more than capable for these?
Click to expand...
solarwarehousesa.com

Hybrid Inverter 2 KVA 1600 Watt MPPT 12V- Sun Solar

Hybrid Inverter 2 KVA 1600 Watt 12V- Sun Solar This is a multi-function inverter/charger, combining functions of inverter, solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user-configurable and easy-accessible...
solarwarehousesa.com solarwarehousesa.com

For not much more you can get a pure sinewave

Better charge rate

With future expansion possible later add panels able to carry the load and charge the battery at the same time
2000w solar capacity

If we ever get to stage ? you will be happy you have a solar charge controller included
 
leon.davibe said:
solarwarehousesa.com

Hybrid Inverter 2 KVA 1600 Watt MPPT 12V- Sun Solar

Hybrid Inverter 2 KVA 1600 Watt 12V- Sun Solar This is a multi-function inverter/charger, combining functions of inverter, solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user-configurable and easy-accessible...
solarwarehousesa.com solarwarehousesa.com

For not much more you can get a pure sinewave

Better charge rate

With future expansion possible later add panels able to carry the load and charge the battery at the same time
Click to expand...
What 12V battery can supply 1600W or be charged with 2000W? I guess you'll either have to use 200Ah LFP or 2 x 100Ah. Or just not use all the power.
 
leon.davibe said:
solarwarehousesa.com

Hybrid Inverter 2 KVA 1600 Watt MPPT 12V- Sun Solar

Hybrid Inverter 2 KVA 1600 Watt 12V- Sun Solar This is a multi-function inverter/charger, combining functions of inverter, solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user-configurable and easy-accessible...
solarwarehousesa.com solarwarehousesa.com

For not much more you can get a pure sinewave

Better charge rate

With future expansion possible later add panels able to carry the load and charge the battery at the same time
2000w solar capacity

If we ever get to stage ? you will be happy you have a solar charge controller included
Click to expand...
I would go with this one over the mecer any day though. PSW vs MSW and built in MPPT. And can charge 2 x 100Ah at 60A (30A each). All for an extra R600.
 
wingnut771 said:
What 12V battery can supply 1600W or be charged with 2000W? I guess you'll either have to use 200Ah LFP or 2 x 100Ah. Or just not use all the power.
Click to expand...
Yea not exceeding 1.2kw you can scrape by with one battery at first

And the plus side decent charge rate for lithium 60a

So in a 4/4/4 load shedding stint

You could use 3kwh (if you have a big enough bank) the first 4hrs and still recharge it all back in 4hrs on ready for the next 4hrs off
 
leon.davibe said:
Yea not exceeding 1.2kw you can scrape by with one battery at first

And the plus side decent charge rate for lithium 60a

So in a 4/4/4 load shedding stint

You could use 3kwh (if you have a big enough bank) the first 4hrs and still recharge it all back in 4hrs on ready for the next 4hrs off
Click to expand...
I wonder if that site is legit though.

edit: I just ordered some battery cables, lets see how it goes.
 
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So the last post was on May 15 2024.....is this because we do not have loadshedding,....or am I missing something? Just curious
 
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