DMerciful:
This charger will charge ur battery to death...not regulated thats y its cheap

pranil:


Be careful with loading the ipower/gennex - It is rated at 5 KVA at 1 pF which is realistically 4 KW at 0.8 pf that is even at ambient of 25DEG C. I would say max 3.2 to 3.5 KW load at 40 DEG which we regularly see if the ventilation is poor .

why not parallel 2 genex ( they sell a seprate kit with card and cables) that way you get twice the solar charging also ( 6-7 KW total)
if you plan to run a 2.3 KW steam iron you need much more than 3 KWp solar stup[ to keep batteries charged

earthrealm:


lol, ok...its for random charging of automotive battery, nor for inverter stuff.
thinking of giving my auto batts, a good deep charge every 3 to 6months, as they dont get much action from intra city driving



there is this school of thought that axpert/zinox inverters dont like resistive loads like steam iron...whats your take on it?.the axpert is a beauty, input ac voltage 85 - 280v, variable freq range 35hz to 70hz and over 60amps charging current!...exactly what i need and more.this issue about resistive loads is what is holding me back. the normal load on the inverter would be 2 x 400w sewing machines, small tv, 130w industrial fan,led lights etc..say 400w total...and then the 2.3kw steam iron which would be coming on intermitently. phcn is fairly stable and an avg of 10 to 16hrs daily. so the solar charging option is just for the few days when phcn might not come on at all- when there is a fault or something, i intend to slap on 1200w panels for that, thus my thinking, no need for paralleling the inverters or any other sh,it

chris81964:
The awesome team of technicians at AWPS Renewable Energy grabbed the Lithium by the horns and you can see what they did

DMerciful:
I would expect axpert to power resistive load like iron whose power factor is 1 easily. I would expect it to struggle with inductive loads like water pump and AC... someone with good knowledge of these transformerless inverter should weigh in but I am basing my assumptions on tests done on the cheap mercury 2.4kva inverter

NiyiOmoIyunade:
I used the 5kva Zinox IPowerPlus Axpert clone. It was my first major foray into 48v systems.

I believe Oga Pranil and someone else here have had success paralleling two such inverters together - with this config they are able to use iron and microwave without issues - in OP's case, one single 4kw or 5kw MustPower unit wld handle all the stated loads including 2.3kw iron without issues and at a price point lower than one IPowerPlus unit not to talk of two Axperts in parallel.

NiyiOmoIyunade:
I believe Oga Pranil and someone else here have had success paralleling two such inverters together - with this config they are able to use iron and microwave without issues

earthrealm:


its the high idle consumption of mustpower i dey run from. i have a 4kva mustpower serving me ok for over 1year, powers a 1.7kw steam iron like a boss. the 5kva 48v new model prag is also a beaut

Barezzi:
Yes, I have 2 Genex Axpert inverters in parallel mode.
It carries everything i throw at it, no issues so far. 5 months and counting!

Each inverter has a 2.6kw array. They've been churning out amps like a demented coyote on heat.

NiyiOmoIyunade:
I used the 5kva Zinox IPowerPlus Axpert clone. It was my first major foray into 48v systems.

I had my first solar array on thesame inverter and used it for about 3 months without issues - ironing, microwave for short periods e.t.c until one day it just blew up without warning.

From talking to the Zinox tech people the 'power card' burnt up due to overload - they avered that the inverter could easily run 1hp AC but never iron or microwave.

Neways they fixed it and I never used it with Iron or Microwave anymore but 1hp AC a few times till I sent it home to my family house and its been working fine there for like 2 years now.

I believe Oga Pranil and someone else here have had success paralleling two such inverters together - with this config they are able to use iron and microwave without issues - in OP's case, one single 4kw or 5kw MustPower unit wld handle all the stated loads including 2.3kw iron without issues and at a price point lower than one IPowerPlus unit not to talk of two Axperts in parallel.

earthrealm:


yeah, i went for a cheaper cc then, the jury is still out on the desulphator, i think there are fakes and those that work, my chinco car batt is 3yrs 3months now, v6 4ltr engine with constant ac use.
installed the desulphator abt the 2yr mark when i noticed reduced performance, it has continued serving me till date. most chinco car batteries crap out in 2yrs or less

Barezzi:
Yes, I have 2 Genex Axpert inverters in parallel mode.
It carries everything i throw at it, no issues so far. 5 months and counting!

Each inverter has a 2.6kw array. They've been churning out amps like a demented coyote on heat.

DMerciful:
Barezzi,
Always tweaking ur system . Anyways... What's the idle consumption of this Axpert?

Barezzi:
About 45w each if I remember correctly. When i get home next month, i'll confirm.
About 90w*13hrs=1.2kwh by daybreak. Not much, considering my pv array.

Hot water. This particular area nearly gave me high bp, until Dapsyra's tweak!
My house is fully off-grid.

How's your system treating you bro?

c0ogumo:


Trina Solar Panel 255W Poly still in stock

bigrovar:
Warning: Coupon is either invalid, expired or reached its usage limit!

Also you might want to work on the process of checkout. It requires the user to be registered (you can't checkout as guest) and the registration page throws up a json error

earthrealm:


AC DOES DRAIN CAR BAttery,[for cars with dual cooling fans, bboth fans come on with ac = bigger electrical load] even headlights too...the alternator works harder when these are on. to keep up with the sucked out juice.
since one cant equalize a car battery insitu, above whatever the alternator can do, a good desulphator should prevent the plates from clogging up.

earthrealm:


LOLZ, that doesnt prove anything. why dont you start your car, remove your battery and run the ac for 10mins @high fan speed. observe it.
then compare it to when the battery was connected...and report back to us.
the electrical loads on a car are designed to run off the car battery, thats why your batt will drain if perchance the batt head terminals are loose/pull off while driving

imagine this scenario...a solar system with loads pulling say 500w off the bank..and same being replaced by the solar panels. and another one with say 50w load being taken from battery and 50w being replaced by the solar panels concurrently. which of the batt bank do you think is doing more work/will age faster.

i agree that ac usage on car battery is minimal, but denying that such impact exists is an untruth.
you may google further for clarification. lots of varying opinions on the web though..

Saipro:


You tell it as it is!

Barezzi:
Yes, I have 2 Genex Axpert inverters in parallel mode.
It carries everything i throw at it, no issues so far. 5 months and counting!

Each inverter has a 2.6kw array. They've been churning out amps like a demented coyote on heat.

bigrovar:


I have done extensive read on desulphators and almost every article claims it all sneak oil. There are few research work into the claim it works but the few I have seen especially from here http://www.quan-diy.com/misc/desulfator/infinitum.htm all points to the fact that desulfators are sneak oil. Battery balancers on the other hand are undisputed proven technology.

bigrovar:


The scenario in bold not how battery charge and discharge works. You can not charge and discharge a battery at the same time. If you understand the chemical process behind conversation of electrical energy to chemical energy and verse vesa you will know the process can only go one way at a time. Besides, elecricity follows the path of least resistance which is always the load.. everything coming from the charger goes to the load, the reminder charges the battery, if the charger is not enough to power the load, the reminder is taken from the battery. The battery terminal is a busbar in this case

Barezzi:
About 45w each if I remember correctly

How's your system treating you bro?

chimeziem:
Good-day House,

I need suggestions to what could be wrong with my stabilizer (12kva relay-type stabilizer – A&E dunamis). I woke up this morning to discover that it wasn’t working – was showing OverVolt. Input voltage reading was 200V but no Output from the stabilizer
I turned it OFF and then ON, then waited for the AC attached to be stabilizer to come up. The moment the AC compressor came ON, the relays in the stabilizer reacted and immediately displayed output voltage of 295V and the OverVolt sign appeared.
I tried same thing again with same result, then opened the stabilizer to see if anything was out of placed but all the components seemed fine – No apparent blown capacitors, transistors etc on the board. I could not get a good look at the relays.

Does anyone have an idea of what is happening to my stabilizer? Please share

earthrealm:
i wish it could handle my resistive loads...

Barezzi:
I bought a 2kw "induction" cooker from Konga around December last year. I excitedly opened the package, got my trusted
aluminium pot, a cup of water and proceeded to test my new cooker.

To my surprise, within a few minutes the water was boiling!
Aluminium pots are not supposed to work on induction cookers.
When i lifted the pot, the cook top was red hot!!
The merchant had sold me a well packaged, 2kw hot plate!!!

I was furious, went online and gave him a very injurious review.
I'm still using the cooker, a 2kw resistive load on my Axpert inverters. They handle it without breaking a sweat.

earthrealm:


wow, if a transformerless 5kva axpert system has 45w idle consumption, makes me believe the 135w idle consumption rating for the 4kva prag/mustpower.
the axpert is really a master piece, i wish it could handle my resistive loads, the wide input range is a big plus 85v to 280v ac, and massive charging current

Barezzi:
I bought a 2kw "induction" cooker from Konga around December last year. I excitedly opened the package, got my trusted
aluminium pot, a cup of water and proceeded to test my new cooker.

To my surprise, within a few minutes the water was boiling!
Aluminium pots are not supposed to work on induction cookers.
When i lifted the pot, the cook top was red hot!!
The merchant had sold me a well packaged, 2kw hot plate!!!

I was furious, went online and gave him a very injurious review.
I'm still using the cooker, a 2kw resistive load on my Axpert inverters. They handle it without breaking a sweat.

earthrealm:


wow, if a transformerless 5kva axpert system has 45w idle consumption, makes me believe the 135w idle consumption rating for the 4kva prag/mustpower.
the axpert is really a master piece, i wish it could handle my resistive loads, the wide input range is a big plus 85v to 280v ac, and massive charging current

kiekie1:


Ooo sorry for the disappointment on your konga supplies .. You are more safe because you paired up Gennex hybrid "par a & b" .. Its a bit more affordable considering the procurement cost of a 10kva schneider , victron etc without adding extra cost of mppt yet ! It exceeds a million to be factual ... If you operate within safe load range , your inverter system should serve you for years not minding its not 100% pure sinewave !! Cheer's

NiyiOmoIyunade:
Bros you cannot have it all na! Remember the Axpert is transformerless so there will be limitations on what it can do when inverting off the batteries. I would say a resistive load + other loads around 25% max of the rated 4kw/5kva capacity would be okay - this is the reason why Ogas Pranil and Barezzi are able to power large loads - they have two inverters in parallel essentially presenting as one 8kw/10kva inverter to any loads so the inverter circuitry is not really stressed.

In fairness to the MustPower 3kw, I have loaded it 2.8kw (iron + 2 units of 1hp AC) several times and it was just running like a champ without any stress - in fact the fan kicks on and the machine runs cooler when carrying higher wattage loads

earthrealm:


did you check what the battery voltage was when you loaded it so?.
my 4kva 48v mustpower hooked to 4 x 200ah flooded battery. the batt voltage drops to 48.8v from fully charged idle voltage of 50v if a 1.8kw steam iron + about 300w random loads is hooked up to it. i think the drop is too much, and also fully charged voltage of 50v.
when fully charged with ac, voltage is 52.6v/53.4v...and once phcn goes, it quickly drops to 52v/51.6v and later settles at a steady 50v after about 30mins to 1hr..with <100w on it....makes me think something is wrong with my flooded batts, was expecting idle voltage of 12.8v, instead of 12.5v per battery...abi its the mustpower internal circuitry and transformer that is drawing it down to 12.v?..hvnt bothered to disconnect and test the voltage of each battery when fully chared

i have made up my mind to go the route of transformer type 5kva 48v inverter, muspower, prag etc+long battery combo - mek i use smf batt abge, dont have energy for flooded batts again
, i no fit shout in this buhari era say the avpert come blow