₦airaland Forum

simydan:
My battery is build by Sendon power, They're on alibab...

Thanks, can I have the link? How was the shipping cost?

simydan:
@ceaser

You're indeed wise!

Lifepo4 it's really the bomb and worth investing on... I chose the this battery for my small setup which did cost more than if I had used lead acid battery.

I bought mine directly from the factory and it cost me 140k for 12v 100ah

Seriously Lifepo4 is the real deal, just can't wait to go off grid. Already have a smart MPPT SCC secured ahead...

Care to share the link of the shop or contact address of this factory?

ceaser:
Bro, the UX has been fantastic so far. I have working AGM batteries that I have decommissioned lying redundant, although they'll come in handy in my experiments.


So I had to immediately change charging setting on the MPPT SCC from the default AGM charging setting to the Lithium charging settings, and also edited the maximum charging voltage from 14.5v to 13.9v.

Pls whoever is on Lithium should take note of the bolded. Due to the efficiency of MPPT solar controllers, it's advisable you select lithium settings and edit it to the manufacturers recommended charging voltage for your battery.

Thank you for the comprehensive reply, you just answered my question on why I wanted to know the MPPT SCC, I wanted to see if it has features like ability to set charging voltage, as mistakes in charging voltage can lead to the failure of the expensive batteries. Do share with us when the battery gets back to the market. Thank you.

ceaser:
Bought from a dealer in Nigeria. He did run outta stocks and is importing new supplies by March.

I charged the 120ah with PWM SCC until last week when it was changed to a newly acquired MPPT. The performance ever since the SCC change has been breathtaking.

I charge one 60ah with a hybrid PWM inverter on 150watts (x2 in parallel)

The other 60ah is charged via MPPT also on 2 pcs 150watts panel but in 2s1p config.

Oh, thought you imported it. What is the make of the MPPT SCC that you using for the lithium batteries?

How's the user experience? Is it living up to the hype of lithium batteries? A colleague imported this type of batteries some years back. It turned out the place he got it from used low quality lithium batteries, the experience wasn't so good.

ceaser:
12v 120ah LiFePO⁴ (1 unit)

12v 60ah (x2 units)

That's awesome. Where did you buy it, and if not asking for so much, how much did you buy it?

Edited: I see you've already answered the question on cost, now if it ain't much of a problem I'll like to ask if you can share the store you bought it from and the equipment you use to charge the said batteries.

ceaser:
Lithium is sweet!

Interesting, what type of lithium battery setup are you using?

hisholar2:
Please help, this is the response I keep getting anytime I try to order from AliExpress. Any help solution plz?

It appears your card is not supported... see here: https://service.aliexpress.com/page/knowledge?pageId=37&category=1000021991&knowledge=1060062451&language=en

We keep winning 'em disputes

www.nairaland.com/attachments/10888564_screenshot62_pngb4fdf6a45014c80eac26047990d1b52a

ojeysky:
I disconnected the Panels and followed the process in the video.


https://www.youtube.com/watch?v=HZf-sm3UXX0

Ok. That's cool. Then have you checked the connection to ensure they are tight. If yes, then I think the next step is to check the charge controller. I hope what it displays is accurate. But for you to find out you'll need a clamp meter.

BetaTechnicians:
Probably open circuit.

Hard to tell the current with that.

ojeysky:
Yeah I checked the voltage of each of them and they were fine(over 30v each), my inverter readings also confirmed that as well. However I have not been able to check the amp individually, do I need to check that as well? And what tool will I need for that? I have a multimeter.

Update: Okay after some googling, I found how to check my panel current with multimeter. They all checked out (some beyond panel spec which was strange, but I guess more is better right?) except 2 which was below the rest by 2.5amps. Done some thorough washing and tilting for them. Will see how it goes.

That's ok, by the way how did you measure the current without a clamp meter?

ojeysky:
Pole relocated to remove shading. However I still remain puzzled on my harvest, I should be seeing close to 8A and over 1.5kw but am not experiencing that. Now that I have eliminated shading (there is improvement post noon), I am left with tilte as the next possible thing to look into. My setup is currently flat, is this an optimal position? Or what would folks advice?

Your tilt angle is ok. Have you individually checked each solar PV? If you haven't, I guess it's time to do that.

wolebanks:
hello, I came here in search of how I can get an inverter, and I think I will get what am looking for here. I have a battery and the charger, all I need is just an inverter to power a small TV and decoder. I have copied the contact will call at daybreak. please what is FTA?

Free To Air....FTA...Free-to-air are television and radio services broadcast in clear form, allowing any person with the appropriate receiving equipment to receive the signal and view or listen to the content without requiring a subscription, other ongoing cost, or one-off fee.

suco01:
this ride sound system go mad

BOSE is boss

boiz2men:
The writings on the paper and her shirt are similar

chanseroo:
dont forget her hand writing .it might nt be murder.

Come to think of it, you guys may just have a point, I also saw some similarities between the handwriting on the suicide note and that on the t-shirt she wore in that photo.

A305:
Sex in a relationship is just changing engine oil in your car engine.

You must change it.

You can't let the oil in it get long overdue for servicing otherwise, you risk getting sludge.

The engine won't work if you don't add oil at all.

That's how sex works in a relationship. And if you want to see a good CHEAP vehicle to want to make a habit of changing oil on, see that CHEAP lexus on my page.

Never knew someone can smoothly make a car sales pitch while giving out relationship advice

www.nairaland.com/attachments/10867592_leocheersrespectmeme1_jpegcd7be45ac2dbc3143a6e6d12f9abed6c

jboixxx:
I have a friend that lose his dispute and he's not the first. At times, you might have your account frozen for abuse of dispute. Also, sellers do rate buyers and it learnt it counts too.

I've never lost any and I always have an agreement with sellers before opening a dispute. Most times,
it's after an extension of buyer's protection.

I don't open dispute unless seller failed to deliver in 60 days. I never contact seller for stories either before opening dispute. I never lost too, dunno why I never do.

jboixxx:
It's good to open dispute but you should all be careful not to abuse it! Also, not all disputes are won.

You can always ask seller to extend buyer's protection time for you as package is still in transit.

Never lost a dispute. I'm surprised when I see people say they do. I guess I'm just lucky or something.

Ok

Other governors yet to comply what is their excuse?

Owerri1stSon:
Ogah Wizkid knows about the prank already before it was shot.

Even if he doesn't know, it's a prank. Haba!

2undexy:
He needs to sue them for this. This is infringement of image right now. This is what all other impersonators are being jailed for and this guy did it no backlash. Oga o

Sued? Over a prank video? SMFH

dejidotun2000:
Hello house.

Has anyone here used Ritar VRLA batteries?

What's their performance like compared to Indian brands (Genus, Sukam) ?

They are good, I'll advise you go for the 200AH. There's one that was installed in 2014 that is still kicking àss till date.

SirNeroDee:
I know sha.. But the funny thing I don't understand is why I jus got half refund.. Is it because I waited longer than 60 days?

I've never gotten anything less than full refund in all my six years of dealing with AliExpress.

WTF?!!!! What's the alert for? Was the general killed in Nigeria or is the man in Aso Rock Donald Trump?

I don't get this news.

earthrealm:
you usually get paid for the power you injected.

Not in Naija grid

Our grid is not that smart

Inileo:
Please is anyone having issues with China posts??its been on accepted by airline for a long time

Shipping is generally slow for most people this period. Chill, you'll get your money back if you don't receive item after 60 days. It is in the best interest of the seller that you get your goods in time as they stand to lose if you get refunded.

IMAliyu:
How is the sound quality and battery?

If you are looking for a good quality earbud with good bass and strong battery, you may like to check out Syllable S101 Bluetooth earbud currently selling for $34.14

eliok:
I will like someone to tell me best way to import a laptop.

Dhl can fail so not an option for me.


Any other way will be appreciated. I stay in kaduna

Use third party shippers. Look for those that had stayed long in the business with good customer feedback. Check the tech market for them.

SirNeroDee:
But the seller extended the protection period.. Will that reduce the value of the refund I was meant to get?

It doesn't matter if they extended it. Once it's 60 days you deserve the right to seek for refund.

bigrovar:
Hi guys. I just carried out the first major upgrade of my offgrid solar setup after decommissioning the previous install back in December. The new upgrade was long in planning and the idea was to incorporate things I learned from the first install. Unlike the previous install where I had control over many aspect of the system including roof location and battery install location. This new one I had to make do with what is available, The only roof space available for me was the north side of a building adjoining to mine since my roof could not support the installation of 9 335w solar panel in series.

Basic System Specification Include:

9 x 335w Yingli Poly Solar Panels = 3015w
Axpert MKS 3KVA / 2.4Kw Inverter (iPowerplus label)
Victron Smart MPPT 100A / 150v Solar Charge Controller
4 x Exide TI1750 200AH Flooded Battery

Accessory Include:
Victron Battery Monitor BMV 700
Victron Battery Voltage and Temperature Sensor
Raspberry Pi 3B (For remote Monitoring Dashboard)

Panel Configuration
The panels were installed in a 3 3 3 setup, 3 panels in series and the output of each series connection are then paralleled into a home made combiner box. Each positive side of the 3 series array were each terminated to a DC breakers installed in a breaker box to allow for array separation and then from breaker box to home made combiner box.

Inverter and CC configuration

I installed a positive and Negative busbar. All Positive wire from the inverter and cc terminated to a positive bus bar each running through a 125A DC circuit breaker. The Negative from the inverter also terminates to the battery bus bar via the current shunt for the victron battery monitor.

Battery Setup:
The batteries are connected in series parallel. 2 pairs of batteries in series and their output combined together in parallel. The parallel setup was configured so that each battery had a + and - wiring of equal length terminated to the same positive and negative busbar where the inverter was installed

Cabling:
For cabling, I used 6mm for the PV to the combiner box
From the combiner box to the cc is a 10mm cable (distance is less than 2 meters)
cc and inverter to battery bus bar is a 25mm cable
bus bar to the batteries is a 35mm cable
1 foot 50mm cable was used for the series connection

I installed a Victron Battery sensor for voltage and battery temperature sensor. It is installed on one of the batteries in the bank and connected to the battery terminal point to give out the battery voltage at terminal to the charge controller and also sends the battery temperature for temperature compensated charging.

Monitoring
A rasbberry Pi 3 is installed. It uses the Victron VE direct to usb cable to quarry information from the charge controller and the battery monitor bmv 700, it also uses the USB B to USB A cable supplied with the Axpert MKS 3KVA inverter to query it for data. The Pi is connected to my home wireless network and sends all the data gathered (via the MQQT protocol) to my custom emoncms install on a virtual private server someone in the cloud. The result is the dashboard which displays in real time the system performance http://energy.bobby.com.ng/dashboard/view?id=14
(The energy log is abit off, I generated 9kwh yesterday but it is reading 18kwh so it needs a little tweaking).

In all the system is a mid sized setup to power a moderate load of about 450w (day time load) and 250w - 90w load at night. From the battery monitoring usually pull about 90AH - 100AH from the battery bank at night which is about 25-30% dod. Fridge and freezer go off by 6pm and comes on by 9am

Congratulations on your new setup. This must've cost a lot. I like that you are rocking the flooded cell batteries, which it's been a while I've seen anyone use.

Lol. Nigerians and drama.

SirNeroDee:
It's still fast na.. Me dahz been waiting more than 70 days for phone case nko?
Which shipping method did the person use?

Don't wait more than 60 days, always open dispute on the 60th day. They'll most likely honor their 60 day money back guarantee in the case of failure to deliver goods.