₦airaland Forum

anjilgreat:
Lol! I wouldn't have tried it o!

I was thinking that there may be a DC equivalent of the plug. Thanks

Was hoping for NiyiOmoIyunade to come to the rescue but ... here I go: purely resistive loads like yours typically aren't concerned with whether the power source is AC or DC. They do care a lot about the voltage as the power consumption is consumed as a function of the resistance at that voltage, resistance presumed constant. The heating element might not withstand the heat generated at higher voltages and the risk of fire is immense at a voltage 20 times higher - the heat generated is proportionally greater. You'd be holding a furnace!

Just thought I'd chip that in, in case you're tempted to try some science.

I need a few 24V Victron phoenix (VE.direct models). Outright purchase or trade (I have 48V variants).

ojeysky:
Still need this....USB to RS485 (with rj45 end) converter.

Make an offer which can't be refused

earthrealm:
Saipro

All sold out o.
Even before it got to my doorstep.
This is the Sorotec revo II, the flagship of sorotec hybrid inverter line, slightly more expensive than other sorotec models.

See the powland aliexpress brand.

https://a.aliexpress.com/_vUs615

Expecting a few units mid month

Share your digits. Let's talk. Or chat me up via WhatsApp on O8O xxxx 23O5

Anyone with the touchscreen Sorotec model for sale?

kiekie1:
HURRY!! GET YOURS NOW !!!

SCHNEIDER 1.5KVA 24V (1000w solar input) pure sine wave inverter ..... 85,000

SOROTEC 3KVA TLREVO VMII 3KW 24V - 100A MPPT ... 220,000

SOROTEC 5.5KVA TLREVO VMII 5.5KW - 48V - 100A MPPT .... 260,000

SOROTEC 5.5KVA TL PREVO VMII 5.5KW - 48V - 100A MPPT (PARALLEL) ...270,000

SOROTEC WIFI MODULE
WIFI MONITORING ROD ... 28,000

German Phocos 5kw 48v - 80A MPPT .... 590,000

Axpert 3kw -24V - 40A MPPT ... 175,000

VOLTRONIC 3KVA - VM - TL
AXPERT VM 3000 - 24V - 1500W MPPT 60A ... 215,000

VOLTRONIC 5KVA - VM - TL
AXPERT VM 5000 - 48V - 3000W MPPT 60A ... 290,000

VOLTRONIC 5KVA - VM III - TL
AXPERT VM III 5000 - 48V - 5000W MPPT 80A ... 300,000

VOLTRONIC 5KVA - MKS - TL
AXPERT MKS 5000 - 48V - 4000W MPPT 80A ... 340,000

VOLTRONIC 5KVA - MKS III - TL
AXPERT MKS III 5000 - 48V - 4000W MPPT 80A ... 370,000

VOLTRONIC 7.2KVA - MAX - TL
AXPERT Max 7200 - 48V (P) - 8000W MPPT 80A .... 500,000

VOLTRONIC WIFI MODULE
WIFI CONNECTIVITY MODULE ...... 29,000

VOLTRONIC PARALLEL KIT
PARALLEL CONNECTION KIT .... 30,000

GROWATT 3KVA TL KVA 24V HV3M-50A MPPT .. 240,000

GROWATT 5KVA TL5KVA 48V HVM-P-80A MPPT .. 370,000

GROWATT 5KVA TL5KVA 48V HVM WPV P-100A MPPT ... 385,000

GROWATT 6KVA T6KVA 48V HVM TRANS -80A MPPT ... Out of stock

GROWATT 8KVA T8KVA 48V HVM TRANS -120A MPPT ... Out of stock

GROWATT 10KVA T10KVA 48V HVM TRANS -120A MPPT .. Out of stock

GROWATT 12KVA T12KVA 48V HVM TRANS -120A MPPT ... out of stock

EPEVER 5KVA 5KVA 48V 80A MPPT PV200V ... 350,000

USA TROJAN 12v 205A battery .... 195,000

USA TROJAN 12v 170a Flooded battery ... 95,000

Vision 200AH 12V Battery .. 125,000

BATTERY BALANCER 48V .... 35,000

BATTERY DESULFATOR/REJUVENATOR REJUVENATOR 12V, 24V, 36V, 60V, 72V ... 35,000

Contact,
Smartcell global services
CALL ONLY:: 081-350-31951
WHATSAPP ONLY::: https:///2348170385620

Nice seeing Sorotec make it to mainstream

Anyone with used L16 batteries (preferably US Battery brand). Few units urgently needed for a friend.
Call/WhatsApp O8O 239O 23O5

earthrealm:
Classic failure mode of l3ad acid batteries.
R3ads correct voltage, but drops rapidly when put on load....

And it even reduces your harvest from solar panels cos its high voltage confuses the CC to think that battery is getting full.. and cc then throttles back harvest

Desulphator and balancers from inception

ceaser:
Well, I have had no experience whatsoever with scanfrost freezer or any of their products for that matter. But I'm on the third thermocool freezer. The first 219L was 12 years ago and demanded first kazeem tinkering 10 years after faithful service. It still freezes alright but I had to dump it when post-kazeem tinkering ramped up the wattage from 130 watts to 250 watts.

The second is the 203L non-inverter acquired over a year ago. The third is the 319L inverter acquired about 4 months ago. They both still live up to expectation. Freeze quite good and retain frost for the claimed 100hrs from the very few occasions (not anytime recent) I had to leave them off power for such duration.

I want to strongly believe that if you have constant, non-surge voltages like the inverter produces, gadgets including HVAC gadgets should last longer than if they are exposed directly to our epileptic BEDC power supply. So if thermocool with their good reputation gets exposed to such insult, it may fail earlier than scanfrost, and vice versa.

As per your observation of peeps repairing thermoccol more than scanfrost, I'll assume it's probably because more people use thermocool than scanfrost.

But apparently you've have a fairly impressive experience with scanfrost, then you may go with it.

Seems the gas refills have a lot to do with the increased "power hunger".

NiyiOmoIyunade:
I have heard this PHCN charges better and faster than Gen and Solar cannot charge batteries well soooo many times. My thoughts are as below;

It is all a question of the quality of the power supply. Think of PHCN as an effectively infinite power source. When PHCN supply is available you are able to run your loads (bypassed through the inverter) and charge the batteries at a constant current or constant voltage with no variations or dips. The PHCN supply is typically a quality sine wave with peaks and troughs well regulated and frequency at 50hz.

Most people's generators are relatively undersized vs the power demand on them and typically have poorly regulated outputs (frequency off spec and voltage dancing around under load). All these will affect the ability of an inverter to latch on and derive maximum power from the Gen. Use say a properly output regulated and oversized Gen e.g 80kva for a normal household that could manage a 15kva and you will see that your results are much thesame as when using PHCN to charge.

Solar charging is the most finicky of all, since the supply is usually limited, batteries are holding a constant current when all of a sudden, clouds or large loads come on and the available power for battery charging drops. To get grid like results from solar, you must GROSSLY OVERSIZE the panels relative to day time loads and battery charging requirements. If your need is 1kw for loads and 2kw over 5 hours for battery charging, you can't usually get by with a 3kw array - minimum PV size would be ~4kw and practically I would do ~6kw of PV to run combined 3kw of loads and battery charging. Even in this scenario, there are days when you would still need Gen or PHCN assist. The trick is to find the optimal point between PV size and occasional Mains/Gen assist.

In short, most people tend to try to do too much with too little PV and then get dissappointed when their design fails.

I have a 21kw array to run roughly 8kw of daytime loads and return 40kwh into my battery bank daily. Even so oversized, there are still days the PV cannot keep up with household load and battery charging demands and I need to invoke Gen support.

I see you've done justice to it

essegis:
Got a question guys & would want sincere answers.

Why is it that Solar charging is not usually as deeply suited for batteries like mains charging.

Maybe I'm not putting it well but make I break am down. Over the years I've used solar, started with LA & now lithium batteries, I found out batteries charged using solar alone run out faster than those charged with mains. These same batteries though have and fully reflect the battery SOC oo, it's not like something is amiss but they don't just tend to stay the length when being discharged.

Same narrative can be said between mains and gen charging. Anybody has a reason for why this is so?

Now let me blow your mind. Use solar charge your batteries all day and give it shikini 30mins - 1hr of mains to top it up in the night and see it last like say kilode. That is where my confusion lies.

My experience is the reverse.
I have a significantly oversized array (almost 100% oversized for the current batteries). I have my 1.5HP sitting room AC, fridge freezer and 55" TV on right now. Batteries are on absorb. FLA set to absorb at 57.6V. Current input from PV is 1363W. Array nominal power is 3060W. CC CV charging is not an issue. Time is about 11:30am in Ilorin

Edit: this means I can hold this voltage for hours on most days. No need to ramp up absorb to 59.2V

earthrealm:
Did you get closure on this, i have a faulty 4kva mustpower 48v transformer inverter.
The output flunctuates crazily especially when loaded upto 30% or during 200w fridge startup

Abandoned in my store. Using a smaller Victron for backup

earthrealm:
Who has in stock this variant of current limiter, with kwh display,?
I need it asap, cant wait for AE

I might have a few

NiyiOmoIyunade:
A 63A breaker is rated to carry 63A indefinitely - it may or may not trip at 70A.

The breaker response to current depends on the current response curve rating - Type A, B, C, D e.t.c Most of the breakers I see locally are C-Curve.

If you have a very rapid rise in amps over and above the rated current (such as a short circuit) then a breaker is likely to trip quickly. A slow and steady ramp up may not cause a trip.

See screenshots below for the various ratings and working tolerances.

This is one of the reasons why there is a market for those electronic voltage and current protection devices you sell since they have a much more precise response. I have yet to see a DC version though.

I often stock them. I however don't sell as they're commensurately more expensive and people likely wouldn't understand why. Projects and personal use. Easiest way to avoid annoyance trips (freezers, pumps, plasma TVs et al).

IYGEAL:
Drop your contact details. I hope it's PSW and 12VDC.

Yes, they're pure sine wave
No, they're both 48V DC

O8O 2390 23O5 (WhatsApp/Calls)

adrusa:
I'm wondering if you or anyone still have the victron 375va inverter for a good price?

Two left
I haven't changed the price (despite fluctuations in the dollar exchange rate)

ojeysky:
You could stay in the middle. Bulk 59.2 while float 54.8

From experience: unless they're premium batteries, the logic is stellar but sounds like a bad idea nonetheless. Even if you're utilising temperature compensation, limit absolute voltage after compensation to no higher than 2.45V per cell

VRLA and Gel lead acid batteries don't do so well if charged at voltages higher than the gassing voltage which is typically around 2.4V per cell in most of Western Nigeria (our ambient shade temperature often hovers between 27 - 30°C on many of the mornings). These batteries hate gassing and experience rather short lives if you get them to stay on absorb for more than an hour or two when absorb voltage is >2.4V/cell. I believe 2.45V/cell is the tolerable upper limit. Higher is risky unless you're certain of what you're doing. This applies to the majority of nameless brands we use.

Go for lower voltages and longer absorb duration if possible.Your aim is to reach full charge while avoiding sulphation. Imbalance would ensure the weaker feels never get a full charge at the lower voltages. This is where the "snake oil" desulphators come in. Good balancers would help too. A week at excessively high absorb voltage leads to early and catastrophic failure. Again, true premium batteries don't seem to mind higher voltages. Catalytic recombination of the gases handles the rest. Gel should never be gassed (it develops gas pockets within the gel matrix). 59.2V is just a tad bit lower than equalisation when done with temperature compensation.

I avoid these topics but this is a dicey one as many adopt the info on these pages as the gospel truth. Others can contribute what they know.

I have both the HA02 and a pretty nameless but similar looking one I bought on recommendation. Your observations are at par with mine (taken at numerous measurements over the past few years). The "clone" however can do 2A steady and at times exceeds that. It makes an annoyingly louder high frequency hum though.

Conclusion: (from the perspective of lead acid chemistry) If one is to use balancers, do it as early as possible, preferably at the commissioning of the battery bank. If possible, couple in desulphators as well. By the time a battery has drifted far apart from the others, it's probably almost too late.

Edit: The nameless brand is Taico and recent measurements show <0.05A through the most active leg during bulk. Batteries are in harmony.

NiyiOmoIyunade:
This method presupposes a standard installation with DB and breakers dedicated for inverter loads, if all the load wires were twisted together at the inverter output, you simply have to unbundle all and bring them back together one at a time.

I burst out laughing upon seeing this. My second solar RE installation had all loads twisted together at the inverter output. I was horrified to discover everything else was bundled together at the DB, bypassing the MCBs. Crazy stuff.

These days, it's a norm to see such from a previous "oga, I can do it for much less" installation.

dapsyra:
I pushed my 5.5KVA Hybrid Inverter to the limit to test it's ability to handle load. I ran three 1HP Aircon, two 1200w water heater, one big deep freezer and a 4-door refrigerator on it simultaneously. It handled like breeze. These hybrid inverters have really come of age.

I stopped at 5211VA, not because the inverter cannot handle more but I simply ran out of loads.

See the peak data on the attached image.

The beast known as Must handles overloading quite well on 48V models. 24V do it less elegantly. Ran 6kw in frequent spurts for about 20 minutes on a 3kW inverter. My previous Victron did even better. But this is not a competition. I think you really shouldn't be doing that unless absolutely necessary (mine was for emergency arc welding). The surges nearly shook the inverter off the wall.

However, such electrical equipment shouldn't be consistently run above 80% power to forestall easily avoidable premature failure.

All this talk about CCs, hybrids, spare boards and all ... I have a few clients with 24V 3kW Must inverters with bad chargers. Two with bad inverter sides on PowerStar 48V inverters (seem immune to charger going bad on account of using desulphators)

Anyone with spare boards and cost implications? Anyone knowing how to fix/recalibrate these devices?

NiyiOmoIyunade:
Looking through the link and posts, the Axpert did not come out on top at all

A ha!

Namzy:
Victron bluesolar mppt and axpert mppt have been compared before on power forum and axpert came out on top. Although I don't know with their recent models whether that still holds.
https://powerforum.co.za/topic/1429-axpert-mppt-vs-victron-mppt/

Axpert didn't win. It appeared to win. Energy delivered was the same, if you neglect that the Victron bank went into absorb earlier

eleojo23:
Does anyone have any experience with these batteries/inverters?

cc: ojeysky, zeestone99, kiekie1, NiyiOmoIyunade, Saipro, ceaser

Mileage varies immensely with sealed batteries as they're less tolerant of overcharging.

I've used both on request. Both work wonderfully for streetlights. Under typical home (ab)use, do not expect more than 18 months deep discharge lifespan. They live 24 months and more but you're unlikely to be disappointed if you stick with 18 months

omotoda:
Are they poly or mono?

Poly

omotoda:
Oya give them to me nah!!!!

Simply credit my account with ₦210,000 and they're all yours

Litmus:
The following is going to enrage some of you but here goes: you Nigerians have been living too free in Nigeria and have grown spoiled and entitled. Majority of you are ignorant of true state of the world. Government has been thin on the ground. In spite of SARS, Nigerians live lawlessly and have done for too long. You people barley pay taxes. You drive cars without going to driving schools, meaning majority of your driving license are forgery. You guys with vehicles don’t pay insurance. You people don’t pay for road maintenance. You people build homes illegally. Erect buildings and structure where you want. You piss and shit where you like, without police harassment, when even if facilities are absent you could still ease yourselves with a little consideration for others and your environment. When you own business you often sell unlawful stuff in an unregulated market. Regulated markets are taxed. Nigerians go into the bush and hunt animals many of them animals on the endangered list that are unlawful to kill. Chemists sell outdated meds, without penalty from the law. Majority of you are not even Nigerians for you have no evidence such as birth certificates indicating where you were born. You pay virtually nothing for fuel. The list is endless. You all owe Nigeria a great deal but this truth is drowned out in the general rabbleous and ignorant noises you make about some mystical oppression, when your true oppressors is the limit ignorance has placed on some of you minds, depriving you of the ability to see opportunities that abound everywhere in that country Although, how one is oppressed in a nation that is effectively without functioning police, judiciary or tax system – the very definition of the perfect Free State – is beyond me.

One day you people will work yourself up into a lather of such rage, you will destroy Nigeria and then you people will go and live in other nations and pay bills at a higher rate than ever dreamt of in Nigeria.

Nice!

You should be aware a good number of people have legit living down to their driving licences and even pay tax from source.

It would be nice if you would use GDP or minimum wage as a basis for comparison. Things aren't necessarily what they are perceived to be.

By the way, many governments of the world are running thinner than us right now. Fact check.

Saipro:
- open-box Victron Quattro 48/5000/70 (5kVA 48VDC) - ₦780,000
- Victron VE.Direct 375VA 48VDC inverter (no charger) - ₦60,000
- Victron BMV 702 (with shunt and cables) - ₦100,000
- Fangpusun display (for inverters and chargers) - ₦20,000
- Midnite SPD 300V AC/DC surge protector - ₦60,000
- Midnite MNPV8HV-DISCO 4X disconnect/combiner box - ₦360,000
- 300W Yingli panels - ₦35,000 (used)

- MC4 connectors
- MC4 splitters/combiners
- Midnite 250 Classic KS

WhatsApp/Call O8O396l2l47

Still having 6 Yingli panels left. Amazing to sell the others so fast and be stuck with 6 units. Someone please take them off my hands

adrusa:
I will see what I can do. I could have taken all those pictures the day I installed the BMS because I brought out the entire thing. As I said, it was really well built. I wish I can get a good welder or iron bender to construct such nice cage for my other DIY.

Nice
I typically take numerous pictures of most things I dismantle; helps troubleshooting in the day of need. Makes for good reference too when something goes wrong with reassembly e.g. one is forced to defer coupling back due to emergencies or other unforeseen situations. Or someone else needs help.

adrusa:
... That is what I did for my Felicity lithium; I replaced its BMS with ANT BMS.

Could we have insight of the inner workings or even pictures of the cells used?

Saipro:
- open-box Victron Quattro 48/5000/70 (5kVA 48VDC) - ₦780,000
- Victron VE.Direct 375VA 48VDC inverter (no charger) - ₦60,000
- Victron BMV 702 (with shunt and cables) - ₦100,000
- Fangpusun display (for inverters and chargers) - ₦20,000
- Midnite SPD 300V AC/DC surge protector - ₦60,000
- Midnite MNPV8HV-DISCO 4X disconnect/combiner box - ₦360,000
- 300W Yingli panels - ₦35,000 (used)

- MC4 connectors
- MC4 splitters/combiners
- Midnite 250 Classic KS

WhatsApp/Call O8O396l2l47

Still available
6 Yingli panels left

adrusa:
There is nothing anyone can tell me about lead acid batteries that I have not experienced. From huge trailer batteries (my very first batteries) to Trojan premium flooded batteries (my current lead acid bank).

You remind me of an era I'd rather forget