₦airaland Forum

kiekie1:
Fairly new pure sinewave inverter up for quick grabs !

Yem0350:
I have MMF in ARM and it has never depreciate.
You need to check your MMF ARM very well. You can even use your glasses

Namzy:
Please does anyone know any inverter installer around Nnewi Anambra state.

ruffhandu:
The next thing we'll hear now is ruptured anus.

But, forget what they tell you that this is the way they are, this gay thing is purely demonic.

For the gays here, I want to ask a question, does one partner be at the receiving end always, I mean, receiving the penetration, or is it chuk me I chuk you? I was confused when an American felon lied that he was raped by another man until he ejaculated and that explained the presence of his semen at a crime scene.

earthrealm:
OOH NICE, SO what work around did you use to have the info i outlined in the cons at your finger tips.
i dislike having to whip out my clamp meter when i want to confirm the charging current, or the screen being constantly lit, and batt life/percentage not being displayed

earthrealm:
@bolded, is it yiyen inverter sold under the highpower inverter trade name?. i have 1 unit of such, not too pleased with the inverter,

https://www.yiyen.com/product/hp-pure-sine-wave-invertercharger/

cons.
1. doesnt display charging current.
2. doesnt display battery life remaining.
3. screen is always on/lit and scrolling data.
4. doesnt have an easy 13amp socket easy outputat the rear.

Ativ:
Thanks for the update as well as your experience with USBattery.
So, is the Growatt inverter now recommended for flooded batteries? How does one carry out an equalization charge using the Growatt SPF5000? Can the new voltage setpoints affect the durability of the inverter? I read some time ago of old axpert inverters that were prone to failure when exposed to the higher voltages of CCs.
Is the Growatt lithium battery available in Nigeria? Is it stackable and can it function perfectly well with the higher temperatures in our environment? I read of your travails with Victron lithium battery.
In view of your poor experience with USBattery flooded batteries, do you still recommend flooded batteries? Trojan flooded batteries were out of stock for a long time and Coscharis stopped importing tubular batteries. Are there other factors that may have been responsible for the unavailability of these flooded batteries including poor suitability for our environment?

earthrealm:
Ahhha the hybrids...its this issue of resistive loads..that people hv varying opinions.
Lemme research more

nonoski:
Over size the PV and pump on sunny days. Or you can buy inverters for water pumps that come with built in MPPT controllers and no need for batteries.








Thank you all for the response.

I'm yet to start the project, i'm still carrying out feasibility studies.
The tank capacity will 12,000 Liters.

In the part of Anambra I come from the depth of the borehole (450ft+) will over labour a 1HP pump if at all it will work.
So for now i'm stuck with the 2HP option.
The submersible will only run for 3hrs a day (11:30am - 2:30pm)

A 2HP submersible pump is about 1500W if i add 20% inefficiency that will be about 1800w.
So for the 3hr it will pump daily will be about 5,500-6,000w max from a battery bank of 28,800 ( 14,400w at 50% DOD) which i don't see as bad

Saipro:
Usually, asides increased drain on the batteries (assuming not grid-tied), nothing should happen. Mid to premium builds would sense self-feed and either shutdown or display an error. Such has been my experience. Never seen an inverter damaged by such though.

NiyiOmoIyunade:
I will kickstart this since no one has commented so far.

I have used US Battery personally and for clients - everything goes well in year one, with very little watering or maintenance required. Then all of a sudden the batteries (one or two in the bank) start to run hot and drop voltage and everything goes downhill from there despite all measures taken to fix - this typically happens about one and a half years into usage. The reference case is the L16 range

For Trojans, it has been a mixed bag, they also suffer sudden failure which I can only explain as a bad batch being brought into Nigeria and foisted on us. Securing a warranty replacement from the source is nearly impossible at least in my own experience since the replacements were out of stock and stayed that way for a very long time. I have also read the sub par experiences of Ogas Chris, Saipro, Abunafiu on this forum as they experienced issues with their Trojans and made valiant efforts to revive them - hopefully they will chime in with their experiences.

It is interesting that Trojans are priced at a premium relative to US Batteries in the US but here in Naija the prices are about the same no thanks to our local sellers.

Much to my surprise, a similar FLA battery (Luminous) has performed pretty stellar when I used them as replacements for the failed Trojans and USBs - these have suffered some serious abuse yet continue to perform wonderfully - I am waiting for the 3 year mark to pass before I conclude on their longevity and ruggedness in service.

Malevonent:
i used this to check prior to purchase, http://www.solar-wind.co.uk/cable-sizing-DC-cables.html
the site above confirmed that 16mm is ok.
installer recommended 35mm truout, i refused. i used 35mm for just inverter to battery, 25mm for cc to battery - all about 2.5m

hvnt really bothered to chk if it gets hots when charging, will do so and revert.

NiyiOmoIyunade:
If the battery interconnect cables get hot while charging or discharging then very definitely he needs to upgrade to a thicker gauge.

16mm is roughly 5 to 6awg per US measurements - per the NEC (US National Electric Code) Ampacities table, 16MM ( 5 to 6awg) is good for approx ~60amps at 60°C. If OP is charging or discharging under 50amps at 48v nominal and with the short cable lengths (half a yard) he mentioned then 16mm is well within spec.

I have attached the NEC Ampacities guide below

http://www.usawire-cable.com/pdfs/nec%20ampacities.pdf

I am sure that the NEC guide is a good guide. Our experiences however don't support the recommendations or suggestions that they make. Cable quality varies so much that we play it safe and go thicker. If his cables don't get hot when he charges then he is fine.

Malevonent:
Ok will double ch3ck th3 connections..they r all 16mm. Half yard each..my 5kva inverter was displaying 15% load...and had solar input of abt 330w 48v setup ..would the solar input be capable of introducing errors?...

Malevonent:
so all 4 batteries in my string have different voltages btw 11.54 and 12.23v cumm batt voltage was 47.6v,[super cloudy day] have installed ha02 for over 1month now, bank is abt 3months old. need a method to pinpoint the exact bad batts in the bank, ..who knows?

Disco01:
Please how long can a 200ah battery carry a load of 200watts?

NiyiOmoIyunade:
Oga Chris.

You are probably right in the general case. But for this specific Zinox IPowerPlus I have ascertained it easily gets fried if you use an iron or microwave or other resistive load on it. Perhaps one could get by with resistive loads under 500w but certainly a 1.1kw microwave and 1.3kw iron used separately but on a regular basis ruined my first Zinox 5kva within 3 months and the peak load never passed 2.2kw at any time - meanwhile said inverter runs 2 units of 1hp ACs with ease at another location.

After Zinox fixed it under warranty the first time, they warned me strictly to never iron or microwave with it again - same inverter is still firing strong in my Ibadan family house till date.

People that use irons and microwaves on the Axpert type inverters typically stack two or more inverters to share the load.

NiyiOmoIyunade:
Zinox IPowerPlus? The no load power draw is about 50watts, it runs at 48v with a 60 to 80amp charger built in for the AC side and an average performing 60amp MPPT controller as well. Has a host of user configurable customizations all done via software settings on the inbuilt LCD screen.

It is transformerless and will handle ACs and motors BUT STRICTLY NO RESISTIVE LOADs like iron or microwave. In all things best to keep your loads under 2kw for this machine.

Do you have a budget? It costs in the ~300k range. Most likely the price is slightly less by now. You may be able to get a similar Axpert clone without the MPPT built in for a better price.

kiekie1:
HBD to you Sir Chris "AWPS Boss" "Dr Solar" .. Wishing you longer life in good health >> AMEN !!!