Need inverter and batteries advice

haggy

Well-Known Member
Joined
May 12, 2013
Messages
106
Load shedding has not really been affecting me much, but last week, and this week, we seem to have been down 4 or 5 evenings a week from 18h00 for 2.5 hours. Nothing as depressing as getting home and having no Internet or AV working – the abuse from the family is too much!!

Anyway, so I’ve started looking into options. My aim is to alleviate the 2.5 hours that we are typically affected. Not to pump back into the grid. Thus, based on what I’ve read in these forums, I’ve decided to go with an inverter and battery option, with the intent of having two TV’s, PVR, xbox, second decoder, WD MyDrive (NAS device), router and 8 port switch covered. Along with that, I’d like to have some lighting covered for the 2.5 hour period (mostly LED’s at home). Lighting, though, can be ditched, as I’ve got lanterns if need be.

I’ve firstly checked for custom installed options – seems pricey, especially when I read about costs in these forums. Thus, starting to investigate DIY options, with the intent to bring in a sparky when required. Budget – most likely around R15K. I would want the sparky to rig my circuits, if it’s possible, with my AV / Network equipment to automatically get power when load shedding starts – no manual involvement if possible.

As I’ve not been able to find a sodding Efergy monitoring socket, I don’t yet have the history on the draw of my AV and network equipment as yet. Planning to get that done. I have recently setup an Efergy monitor that’s connected to the DB board, and my typical home usage per day is 27kWh. I’m not looking to cater for that as a whole – just posting it for info purposes.

Thus, I now would like some inputs in inverter and battery options. It’s been suggested to me that 1000W inverter should suffice, with possibly 3 x 102aH batteries. I’ll be able to confirm that once I’ve sourced a monitoring socket. I’ve seen mention of Cotek, Mean Well, Prostar, etc, etc.

Are there any specific suggestions/recommendations regarding inverter models, battery models, battery chargers and who to source from based on my requirements? I’m in the Western Cape.
 

haggy

Well-Known Member
Joined
May 12, 2013
Messages
106
Thanks LaraC - on my radar to call maiden electronics and get some inputs from them this week. Already spoken to MLT, but their quote as a bit more than I was bargaining on - hence me starting to investigate the DIY route. I've been looking at this one:
http://www.sustainable.co.za/meanwell-1000w-pure-sinewave-inverter-ts-1000-224b-solar-inverters.html

Not sure if it's great or not - reason I've looked at it is because of the home backup options that are available on the rectifier.co.za site - they offer the Mean Well range.
 

BigEars

Senior Member
Joined
Feb 22, 2015
Messages
533
Hi haggy. Mantech sells good stuff. Chjnese but good Chinese.

They sell the Ritar battery brand. Look around and don't rush in. That's all I can say. Check prices and probably not go for the cheapest.

Investigate stuff.

Links: http://www.mantech.co.za/Stock.aspx?Query=sealed+lead+acidand
http://www.mantech.co.za/Stock.aspx?Query=SLA+BATTERY+CHARGERand
http://www.ritarpower.com/Products.aspx
http://www.meanwell.com/

Do I work for Mantech = no. Just bought stuff from them over the Years that lasts. Check out all options though.
 
Last edited:

gfmalan

Expert Member
Joined
Nov 11, 2013
Messages
2,676
Load shedding has not really been affecting me much, but last week, and this week, we seem to have been down 4 or 5 evenings a week from 18h00 for 2.5 hours. Nothing as depressing as getting home and having no Internet or AV working – the abuse from the family is too much!!

Anyway, so I’ve started looking into options. My aim is to alleviate the 2.5 hours that we are typically affected. Not to pump back into the grid. Thus, based on what I’ve read in these forums, I’ve decided to go with an inverter and battery option, with the intent of having two TV’s, PVR, xbox, second decoder, WD MyDrive (NAS device), router and 8 port switch covered. Along with that, I’d like to have some lighting covered for the 2.5 hour period (mostly LED’s at home). Lighting, though, can be ditched, as I’ve got lanterns if need be.

I’ve firstly checked for custom installed options – seems pricey, especially when I read about costs in these forums. Thus, starting to investigate DIY options, with the intent to bring in a sparky when required. Budget – most likely around R15K. I would want the sparky to rig my circuits, if it’s possible, with my AV / Network equipment to automatically get power when load shedding starts – no manual involvement if possible.

As I’ve not been able to find a sodding Efergy monitoring socket, I don’t yet have the history on the draw of my AV and network equipment as yet. Planning to get that done. I have recently setup an Efergy monitor that’s connected to the DB board, and my typical home usage per day is 27kWh. I’m not looking to cater for that as a whole – just posting it for info purposes.

Thus, I now would like some inputs in inverter and battery options. It’s been suggested to me that 1000W inverter should suffice, with possibly 3 x 102aH batteries. I’ll be able to confirm that once I’ve sourced a monitoring socket. I’ve seen mention of Cotek, Mean Well, Prostar, etc, etc.

Are there any specific suggestions/recommendations regarding inverter models, battery models, battery chargers and who to source from based on my requirements? I’m in the Western Cape.

From your loadshedding times, seems like my valley.

I used a tongtester, and basic maths to calculate my setup. And then I got inverter and batteries, easy, cheap, and I'm the only idiot in my block of flats that watch TV and life carry on, really cool/funny to go outside, see candles and small lights and my flat flashes as the tv does its magic.

If you are indeed in my valley, Im willing to help calculate the values with you.
I calculated each component, and have the measurement for most Items, I also have WD MyCloud,
 

haggy

Well-Known Member
Joined
May 12, 2013
Messages
106
Thanks gfmalan - I'm in Edgemead. Just read an interesting post named "Inverter Recommendations". I see a post there from johnjm regarding a 2.4kV UPS for R10K that he purchased from Mantech. Will be checking with him how that setup works - thus, thanks for the pointer on Mantech as well as offering to assist - may PM you when I've made up my mind on options
 

gfmalan

Expert Member
Joined
Nov 11, 2013
Messages
2,676
Thanks gfmalan - I'm in Edgemead. Just read an interesting post named "Inverter Recommendations". I see a post there from johnjm regarding a 2.4kV UPS for R10K that he purchased from Mantech. Will be checking with him how that setup works - thus, thanks for the pointer on Mantech as well as offering to assist - may PM you when I've made up my mind on options

No problem,
My setup cost
1500 per battery
And R800 for inverter,
Also bought device to measure batt level 4x4 acc
 
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