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Monbat 180ah 12v Agm Batteries


Chris-R

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Wow,  that is good price for 8 batteries!  I will give you R5 k for the set and come pick them up.    :-)

So I know I made the first offer.... but how about some reasonable offers?

Edited by Jaaks
Corrected my offer
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Hi Guys

Nothing wrong with the batteries! I think I bought the wrong ones and need to replace them with 24 x 2v Batteries.

Duty cycle = 20% DOD = 1800 and 50% DOD = 1000

I paid R4295 + Vat per battery totalling R 39170.00 for the set

I will consider any fair offer, and a bargain to you

You can get all the specs at

                                             http://energyiq.co.za/index.php/product/batteries-monbat-12mvr180ah-vrla/?v=68caa8201064

Cheers

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Chris, advertise on Gumtree also. I find a lot of people trawling there for solar parts and batteries there, myself included, selling and buying.

The lower you drop your price, the faster they will go, but how low can one go? Difficult decision.

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I have a small 1 bedroom flatlet in my yard. Considering to put a small system in there and use a small 5000va system there. I could then link 4 x batteries in serie just for a backup.

So I will see what happens.

 

I was very impressed yesterday with Imeon. I emailed them regarding the battery balancing on the Imeon. They called me from France and had a 30 minutes discussion with me. Told me I should just drop them an email if I had any problems and they will sort it out with a pleasure, even if they have to call me. The guy's English was also not to bad !!

Not to bad !!!

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13 hours ago, Chris Rossouw said:

I have a small 1 bedroom flatlet in my yard. Considering to put a small system in there and use a small 5000va system there. I could then link 4 x batteries in serie just for a backup.

So I will see what happens.

 

I was very impressed yesterday with Imeon. I emailed them regarding the battery balancing on the Imeon. They called me from France and had a 30 minutes discussion with me. Told me I should just drop them an email if I had any problems and they will sort it out with a pleasure, even if they have to call me. The guy's English was also not to bad !!

Not to bad !!!

be very aware of the error 23 - fan failure always around month 6 and repeats....ask me i have fought with them via the phone often enough....

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54 minutes ago, Mike said:

... i have fought with them via the phone often enough....

Mike, these little titbits are extremely helpful. Know the quirks before one buys.

If enough people ask the same question before the purchase, maybe then it will get fixed permanently?

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12 minutes ago, The Terrible Triplett said:

Mike, these little titbits are extremely helpful. Know the quirks before one buys.

If enough people ask the same question before the purchase, maybe then it will get fixed permanently?

if they just man up and go and purchase good quality fans...they run 24/7, cannot use cheap shite. had 8 fail last October and two last months out of 80 installed

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17 minutes ago, Mike said:

if they just man up and go and purchase good quality fans...they run 24/7, cannot use cheap shite. had 8 fail last October and two last months out of 80 installed

Speaking of fans, I noticed the little Victron has its fan installed right in the middle of the case, above the control board and power electronics, but below the toroidal transformer. Not on the top or bottom. By the looks of it, that's to ensure flow down the middle of the case where most of the hot stuff lives.

So what fans people choose and where they put it are BOTH very telling... tells you they thought about it :-)

(Air inlets indicated with white arrows, fan indicated by red).

v.jpg

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4 hours ago, plonkster said:

(Air inlets indicated with white arrows, fan indicated by red).

Strange to see the air intake at the top. logical option will be to take cold air from the bottom and move it over the transformer and out. Now to take the air in at the top to absorb the heat from the transformer and then move the hot air over the rest of the electronics doesn't work for me.  <_<

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Truth is I'm not even sure which way the air moves. Let me go check...

Okay, it moves from the bottom up as you might expect.

The top vents are recessed (IP21, can handle dripping water) and ever since installing Firmware 408 the fan hardly runs unless you go above 50% capacity.

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  • 3 weeks later...

Mike, it seems to me you have installed lots of the Imeon's. Are you still installing these units? Are most of them the 6kva single phase units, or did you find the same fan problem with the 9.12 3-phase units?  I'm stuck with the unit and very worried, but the specs of the unit impressed me. I was wondering whether it would be related to the temperatures in South Africa? Actually checked the average winter and summer temperatures in France tonight, and it is much lower than ours. I plan to install an aircon in the solar room to keep the batteries at a constant temp of not more than 22 C and is wondering whether this might have an effect on the fan problem of the Imeon's? Any ideas from your side?

I now have all the equipment on site and will be starting with the installation of this project on Friday. Any comments on how to bypass this problem will be highly appreciated.

Cheers - Chris Rossouw

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HI CHris,

yes i have installed around 85 of the 3.6 units and  12 of the 9.12's. the only issue i have had on the 9.12 is noise from the fans and 9 fan failures, 2 mainboard failures, 1 mppt failure on the 3.6's. I have not touched them since October last year, ar one i had to install of a clients about 3 months back. The reason for it is the poor service from Imeon themselves. you have two local service centres in SA, one in PE , the other in Kimberley

Whatever you do, do not introduce anything that is going to create moisture in the air - that will be you killer. perhaps consider placing the inverter out of the solar room..

best of luck with your install

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8 minutes ago, Chris Rossouw said:

aircon is not a good idea?

Strictly speaking an AC will dry out the air, so I would think it might help (unless you make it so cold that water starts to condense on things). I'm just not certain if the extra power use of the AC will really add that much battery life. I suppose it depends on how hot the place really gets. If you can keep it below 30 Celsius using insulation, that ought to be fine.

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Durban is quite moist at times. Mike is on the West Coast where Mike is is dryer than Dbn, and he had worries.

From what I read here, if I shop again one day, I would make sure I have equipment that can handle moist air.

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