Inverter/battery combo advice

[johnjm]

Ok, thanks. Should I let it run abit n float first before switching off

Or just leave it on all the time unless it won't be used for months.

 

[thehuman]

So I should not charge the batteries right after I have used them

http://modernsurvivalblog.com/alternative-energy/battery-state-of-charge-chart/
Just read that .
The ups sometimes don't understand the bigger type bateries
So the state of charge can be out
An example I am running 5 amp from a 100ah battery for a hour . There should be 95ah or 95% left but ups think battery sits at 80%
You can use that chart to check state of charge

 

[johnjm]

http://modernsurvivalblog.com/alternative-energy/battery-state-of-charge-chart/
Just read that .
The ups sometimes don't understand the bigger type bateries
So the state of charge can be out
An example I am running 5 amp from a 100ah battery for a hour . There should be 95ah or 95% left but ups think battery sits at 80%
You can use that chart to check state of charge

Its a guideline. If the UPS assumes its 80% the voltage will change soon enough yo indicate 95%to100%.

Lead acid isnt as fussy on recharging, its more so incorrect discharging that can kill it.

My 24v system indicates 28v before I put a load on. Pretty healthy. To be safe I set the charger to 50% of its power, but I could charge the batteries quicker if I put it higher.

 

[KOPITE]

http://modernsurvivalblog.com/alternative-energy/battery-state-of-charge-chart/
Just read that .
The ups sometimes don't understand the bigger type bateries
So the state of charge can be out
An example I am running 5 amp from a 100ah battery for a hour . There should be 95ah or 95% left but ups think battery sits at 80%
You can use that chart to check state of charge

I don't charge the batteries via the ups, I am using the stage 3 external charger

 

[The_Traveller]

I don't charge the batteries via the ups, I am using the stage 3 external charger

Can you show some pics on how you wired your charger to batteries and batteries to UPS , if you don't mind. Thanks.

 

[Cavallino]

Hi Johnjm, Looks really neat. The no name brand inverter, what do Mantech list it as? Also, is there someone you dealt with there who is clued up on these things? Is it pure sine wave & what is its output. Sorry about all the questions, but it looks like you have a set up that works & is affordable. Many thanks.

 

[johnjm]

Hi Johnjm, Looks really neat. The no name brand inverter, what do Mantech list it as? Also, is there someone you dealt with there who is clued up on these things? Is it pure sine wave & what is its output. Sorry about all the questions, but it looks like you have a set up that works & is affordable. Many thanks.

Its called the home UPS range and there are various sizes from 800va to 8kva. I spoke to a techie called mike and the sales person was rani.

Its obviously pure sine wave, the output on mine is 1600w with 2400w surge.

 

[Napalm]

so whats the price on an inverter/ups with 105ah battery setup ? (an all in one combo already assembled - plug and play so to say)

I know people advise this inverter.. and that battery and some even suggest special battery chargers etc..


My setup is simple.. 47inch LCD tv with DSTV decoder. (my load is 280watts) and i need it to be running for 2hours to 2.5hours

I have an "kill a watt" the tv/decoder sometimes use 250watt and sometimes go upto 275watt and 280watt. I've never seen it go over 280watt ever.


Any ideas ?

 

[The_Traveller]

so whats the price on an inverter/ups with 105ah battery setup ? (an all in one combo already assembled - plug and play so to say)

I know people advise this inverter.. and that battery and some even suggest special battery chargers etc..


My setup is simple.. 47inch LCD tv with DSTV decoder. (my load is 280watts) and i need it to be running for 2hours to 2.5hours

I have an "kill a watt" the tv/decoder sometimes use 250watt and sometimes go upto 275watt and 280watt. I've never seen it go over 280watt ever.


Any ideas ?

600w 12v inverter/ups (modified or pure sine) with one 12v100ah battery will give you the 2 hours .

 

[gfmalan]

600w 12v inverter/ups (modified or pure sine) with one 12v100ah battery will give you the 2 hours .

I have a 500w inverter with one 102Ah battery and my setup last 3.5 hours. (never tested it till it dies).

47" tv, soundbar, subwoofer, NAS, IP PBX, DSL Router, Switch, IP Telephones, o and Explora.

 

[The_Traveller]

I have a 500w inverter with one 102Ah battery and my setup last 3.5 hours. (never tested it till it dies).

47" tv, soundbar, subwoofer, NAS, IP PBX, DSL Router, Switch, IP Telephones, o and Explora.

Sure hope you have a top quality battery that doesn't mind being discharged over 50%

 

[gfmalan]

Sure hope you have a top quality battery that doesn't mind being discharged over 50%

I have one of those led battery meters, and use this setup from September last year, and no issues sofar, hope it stay like that. 2/3's is the most I used the battery at a loadshed..

 

[Napalm]

can you see on your setup howmuch of the battery is used? (does it show 50% used - or 50% capacity free)

 

[gfmalan]

This is how my first one looked like, i have a dual one now, each connected to its own battery inside the box

 

[gfmalan]

can you see on your setup howmuch of the battery is used? (does it show 50% used - or 50% capacity free)

Show remaining, and has alarm when getting to the end

 

[Napalm]

ah.. thats looking good

 

[spiff]

This is how my first one looked like, i have a dual one now, each connected to its own battery inside the box
View attachment 218946

where did you buy it?

 

[cfvh600]

where did you buy it?

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

 

[spiff]

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

thanks

 

[mister]

Double one is here: http://www.outdoorwarehouse.co.za/national-luna-battery-monitor-double.html