Opinions on Mecer Inverter

User52

Senior Member
Joined
Oct 9, 2014
Messages
586
So the string I quite long then.... 4496886870 Meters long.... We need to start a thread for questions such as this. :D
 

User52

Senior Member
Joined
Oct 9, 2014
Messages
586
And by the way, how does one possibly even try to live with Cell C service?
 

Sinbad

Honorary Master
Joined
Jun 5, 2006
Messages
81,150
Maybe that's why I'm such a grumpy fekker.

Waiting for my port out to be processed....
 

User52

Senior Member
Joined
Oct 9, 2014
Messages
586
Change to Telkom Mobile, they are really good. 70mb/s 4g speed!! And tested. Vodacom have larger network though but if you are in a bigger city then choose TM.
 

Sinbad

Honorary Master
Joined
Jun 5, 2006
Messages
81,150
Change to Telkom Mobile, they are really good. 70mb/s 4g speed!! And tested. Vodacom have larger network though but if you are in a bigger city then choose TM.
That's the sim I'm waiting to be turned on...
 

User52

Senior Member
Joined
Oct 9, 2014
Messages
586
Would choose TM for my main connection for Internet, just need uncapped though... Even LTE-A is still capped from them... Great for a phone contract though. Telkom's 15mb/s line is starting to feel old now, can only download 900gb a month from them an then its shaped... :(
 

FlashSA

Executive Member
Joined
Oct 19, 2007
Messages
9,633
Also waiting for news. Busy charging mine again, 'cos no doubt we will have loadshedding tomorrow from 4pm - 6pm.

Was in the PC Shop today. Their demo's fan runs 24/7 and was quite loud.
 

piranha786

Expert Member
Joined
Apr 28, 2005
Messages
1,424
First test done and dusted! Tv, pvr, few lights. Run through a 2 hr loadshed.

How will i know when the battery is fully charged? I charged it for less than a hour, n all the bard is full.
 

savage

Expert Member
Joined
Aug 11, 2003
Messages
2,922
So, if I am am drawing 400watts, would I get a longer usage from a 12v or 24v inverter.

BTW... To run 400 Watts for 1 hour:
At 12V, you would need 70Ah
At 24V, you would need 35Ah
At 48V, you would need 17Ah

This doesn't change anything really though, as the specs of the inverter (and thus the manufacturer) decides the voltage at which the battery bank must operate. The voltage of the battery bank has no impact on runtime. Runtime is determined by the connected load, and the amount of available Ah.

Just my 2c, useless post of the day.
 

Napalm

Expert Member
Joined
Jun 22, 2006
Messages
3,052
Question on these Mecer 2400va UPS inverters.

HOw long would i get on 2x 105ah Battery's ? (if the load is approximately 300watt)


Then... how often does one need to replace the battery's (think the one's i'm getting are Energizer 105ah Deep cycle battery's)


Then.... on the mecer 2400va (does it show you the wattage or battery percentages) ?
 

savage

Expert Member
Joined
Aug 11, 2003
Messages
2,922
HOw long would i get on 2x 105ah Battery's ? (if the load is approximately 300watt)

If connected in series (i.e. 105Ah): +- 2 Hours
If connected in parallel (i.e. 210Ah): +- 4 Hours

Not sure how the inverter's batteries are connected. I'm sure it's somewhere in the thread though. Can't help you with the rest of your questions, never worked with these units before.
 

getafix33

Expert Member
Joined
Nov 16, 2006
Messages
1,722
Question on these Mecer 2400va UPS inverters.

HOw long would i get on 2x 105ah Battery's ? (if the load is approximately 300watt)


Then... how often does one need to replace the battery's (think the one's i'm getting are Energizer 105ah Deep cycle battery's)


Then.... on the mecer 2400va (does it show you the wattage or battery percentages) ?

The 2400 requireas two batteries in series to give you 102aH 24v
 

greg_SA

Expert Member
Joined
May 24, 2005
Messages
2,002
Question on these Mecer 2400va UPS inverters.

HOw long would i get on 2x 105ah Battery's ? (if the load is approximately 300watt)


Then... how often does one need to replace the battery's (think the one's i'm getting are Energizer 105ah Deep cycle battery's)


Then.... on the mecer 2400va (does it show you the wattage or battery percentages) ?

You definitely want to limit the discharge of your battery to 50% at most... So from a 100 Ah battery, you only want to draw 50 Ah MAX. The battery is 12V, so it will give you 50 x 12 = 600 Wh.

That means, with a load of 300 W, it will run for 2 hours. If you have two batteries, you have 2 x 600 Wh = 1200 Wh. So your 300W load will run for 4 hours.

Whether two 12 V batteries are connected in series or parallel is only a requirement of the inverter... it does not change your battery capacity. So does the inverter need 24V or 12V? I think the inverter that you are talking about is this one: Mecer 2400VA, 1400W, 24V DC-AC Inverter. (Modified Sine Wave). So you connect the batteries in series... so you'll effectively have one big 24 V battery (12 V + 12 V) with a 100 Ah capacity... which if you discharge to 50%, it will give you 24 x 50 = 1200 Wh (same as calculated above).

Those energizers some like standard deep cycle batteries... They should last 2 or 3 years for typical load shedding. The less you discharge them, the longer they will last.
 

Napalm

Expert Member
Joined
Jun 22, 2006
Messages
3,052
Awesome.. i ordered mine from geewiz. Waiting for delivery in CPT (propably by friday or monday) :)
 
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