JUO:
I think the flooded battery was overhyped. For me I will not have anything to do with any flooded battery or wet cell. I understand your pain Abu

Yes o, especially in Nigeria where there are often imported dry and then filled with "distilled" water by the merchant and subsequently sit idle in the wearhouse/shop until they are sold (in many instance at a longer than recommended partial state of charge leading to surlphation). Even at the best of conditions I have come to realise flooded batteries are not the best for offgrid use. Their low charge and discharge rate means you are unable to take advantage of the less than 5 hours peak sun time... unlike AGM which has ability to fast charge and can take close to 30% of it's rated capacity i.e a 100AH AGM can be charged at 30A while the flooded equivalent most not be charged at more than 13% or 13A to avoid damage. The periodic equalization and distilled water topping adds and extra layer of maintenance that becomes a chore especially if you have them in numbers exceeding 2.. Not many inverters supports equalization.

Flooded does have its advantages, their are cheap, quite robust and can be easily diagnosed for problems.. they can also take some level of beating. Unfortunately from my experience, their advantages is seriously out weighed by their disadvantages

SOLD!!

cyif2003:
Ok thanks all d same....

you are welcome

esperiense:
I'm interested but I'm in Lagos 08063737929

If you are really interested and serious *call* my number.

dirtycoin:



Where is your precise location in Abuja?

How low are you willing to sell?

Lokogoma. Give me a call if you are serious.

I got calls regarding the battery life. The laptop lasted 5 hours watching a movie while unplugged.

dirtycoin:
Do you still have the receipt of purchase? Was it purchased as brand new or pre-owned?

brand new online from amazon UK. I have the online invoice.

cyif2003:
100k

+ 40k. don't even call me if you don't have 135k

cyif2003:
Ba3 life?

Internal Battery

Front Li-Polymer 3-cell (23.5 Wh) and rear Li-Polymer 3-cell (26 Wh), both integrated

Rest of the specifications are here https://www.lenovo.com/ng/en/laptops/thinkpad/t-series/ThinkPad-T460s/p/22TP2TT460S

Oshomo12:


The battery probably have one or two cells shorted. Remedy, none(get it replaced if there is warranty on it).

You have said it all. This is a case of a bad battery. Under 2 months says it is bad from the factory so you best recourse is to have it replaced.

divo:

How many inches and what's the processor speed

14 inch
2.3 - 2.8 GHz

The T4** series of thinkpads are all 14 inch. This is the slimer version of the flagship Tseries.

Neatly used Thinkpad T460s ultrabook.

Specification:

Intel (Skylake) Core i5
12GB Ram DDR4
256GB SSD NVME (4 times faster than normal SSD)
Finger Print Reader
Backlit Keyboard
1080p Screen resolution
Antiglare screen
Screen size 14 inch
3G/LTE Sim card support

Reason for sale: I got an upgrade (The t470s)

Location: Abuja

Namzy:

Well I don't have the lcd version but after chatting with the supplier and extensive research I have come to the conclusion that the lcd version is same thing as the led version + the mppt control display and that does not have the equalization settings. I have also seen YouTube videos where someone browsed through the whole settings and equalization settings was not there. Also going through the manual of the mppt control display unit which the lcd of the mppt control is has no equalization option as well. If you can show pics I'd appreciate it because I want that display unit too

Equalisation can only be enabled through the victron connect software for victron charge controllers. The particular brand of fangpuson u are using is a clone of the victron mppt bluesolar controllers. Since late 2016, victron have made it difficult to use their official victron connect software with the fangpusun clones.. Often times they inject a silent kill switch to the fangpunsun which gradually kill the controller. This happens when you try to connect the fangpusun with a victron connect software (least from november 2016).. It was because of this issue that fangpunsun starting making a "*new*" bluesolar with a new casing that comes without the victron connect port hence making it impossible for users of their product to mess with victron software and end up causing damage.

Your options are in 2 folds.

1 find online an older version of the victron connect app (I am using version 1.7) and that seem to work without issues. Once you get this you ccan connect it to the fanpusun cc with the ve usb port. The newer models without the port on the surface can still be used but it would need to be opened up.

The best and easiest option 2 is to just manually increase your absorption charge voltage to 15.5 per 12v and ensure you maintain this for close to 2 hours. This is pretty much what absorption charge does anyway. The downside is you lose automatic equalization which is suppose to happen once every 30 month at least. But trust me, you always want to be there when equalizing batteries just to keep an eye on things so option 2 might not be as bad as it sounds.

I have a used 5kva 48v ipowerplus solar inverter for sale. It has been in use for about a year in a server data center. It is been sold due to upgrades. The system is in perfect working order. The ipowerplus is a white labelled axpert inverter mks 5kva.
120k
SOLD

.

Malevonent:
is there any more wrong in runing 2 x 250w panels in series to an mppt charge controller on a 48v inverter, my instaler is insisting there is no harm/loss of charging potential, i feel a 3 x 250w series setup is better, so as to have enough headroom to charge the smf batts.

what do u guys think?

You are right on the mark. 2 250w panels for a 48v setup is essentially running your mppt as a pwm. There is little or no head room at all and your system will have little tolerance for voltage loss.

hardywaltz:
Please house I need to find out the best option for batteries.

Seal maintenance free batteries
Or
Flooded batteries.

It's for a location that is unoccupied for most part of the year so regular topping of battery acid maybe impossible.

The recent I'm asking is coz a lot of people say they prefer flooded batteries to smf.

Thanks

The part in bold answers your question. Sealed Maintenance free are called that for a reason and are best for places what are unoccupied for most part of the year as long as they get sufficiently charged.

Namzy:
Wow impressed with fangpusun. I bought their bmv 700 and when it delivered I noticed that the display had issues, it wasn't that bad the only problem been 7 looking like 1 and some mild clarity issues. So I mailed them and was expecting them to tell me they will offer a discount on my next buy but they said they will send another unit. I expected them to send only the display unit since the shunt and supplied cables were working buy lo and behold they sent another complete unit thru DHL ie the bmv 700 monitor, 500a shunt and cables. Infact they even added a temp sensor which is odd because the bmv doesn't use it and so I don't know why they added it. So I now have 2 units of complete bmv 700 plus a temp sensor wire that I don't know what to do with. Maybe I'll keep it for a future device, any suggestions?
BRAVO FANGPUSUN

I have had similar experience with them in the past. Once had issues with their charge controllers (After it was killed by an updated firmware from victron) They offered to replace it no question asked and sent the new replacement via dhl all without asking that I returned the broken controller. EPsolar and Fangpusun are 2 chinese companies that have a global reputation for honoring their warranties.

ojeysky:


Please am just curious how come you guys are getting voltage reading this high? I have 2 (150Ah) batteries and the highest it gets to during charge is 28.5 (which is about 14.2v each) when it's fully charged it goes to 26.5v and does not exceed that voltage. If the inverter is off and I test with my multimeter I get a max of 12.8v on each battery is this normal?

Thanks

depends on your inverter/charger charge profile. If it is an advanced charger with temperature compensation and using an AGM settings. That can explain the relatively low charge voltage. What inverter/charger do you charge your battery with.

JUO:
My latest upgrade, review loading

We dey wait ooo. e kuu enjoyment

mcTrinity:
BATTERY BALANCER REVIEW

so, there's been this debate whether battery balancer works or not... well, I 'like just state my observation.

so, I installed a 3.5kva/48v inverter system for this client with 4 batteries, December 2018. all batteries were reading 12.7v at purchase (why I always love Quanta; reads 12.9v at purchase)

As customary, the battery has to charge for at least 8hrs. However they charged it overnight. they only use the system once and drained it to just 48.8v before they shut it down. since they planned on adding four more batteries and solar this January, they decided not to use it again until the whole setup is complete.

last week Friday, I added battery meters and discovered that the batteries weren't just balanced. During charge they're reading 14.5v, 14.3v, 14.7v, 13.8v. (see Pic 1)

so I went and get a battery balancer and install it. 5 seconds later, I got pic 2; all were reading 13.9v

I removed the balancer and the batteries reading went back to pic1. put it back and the batteries reading went back to pic2.

will install the four new batteries tomorrow and carry out another observation.

Cheers

I doubt they are many who dispute the efficiency of battery balancer as a proven technology. The debate has always been with snake oil claim of "desulfators".

earthrealm:
@ house..what is your harvest like this period as a ratio of your total panels...on a sunny day in the eainy season..i easily fot 4x to 5x my total panel capacity and instantenous harvest gets as higg as 80 to 100%

Now even with washed panels i average only 3x to 3.5x harvest.
A 2kw serup giving me 6kwh and a 3kw setup giving me 10kwh daily.with instantenous in peak sunlight around noon being 1.1kw and 1.5kw respectively

I think it has more ro do with rhe angle of the shn in the sky+haziness..than actual dust on the panels.
Curious to know your figures..if it tallies with mine.

Harmattan effect is quite noticeable on my system. Average Peak power went from 1.5kw in July - Oct to 1kw in Nov and 0.8kw in dec. Poor visibility and dusty panel did it for me. Interestingly It has not really affected my overall yield. Longer days non cloudy days has compensated for the low peak power. so my daily yield is still between 4.5 - 5kwh which is more than enough for my needs. Relative colder night also means less energy is used for climate control so my overnight draw has dropped from 70ah to 80AH to about 50 - 40ah.

Talibanis:
Thanks so much for your personal honest review. I deeply appreciate.

I second the review of Felicity. Their support from my experience is top nouch. I got their product from lagos and when I had issues. I was directed to their abuja office where the inverter was fixed no question asked. The whole board of the inverter was replaced after it was established that the issue (Thermostat stopped working) could not be fixed.

earthrealm:


Ok great..absorbtion is same as boost/bulk/cycle for 3 stage charge controllers abi?.

What voltage do you use for float?..27.4v?

Most Chinese Solar/Inverter Chargers call Absorption Boost.. which is constant voltage stage of charging.

And 27.4 is just right for float.

earthrealm:
Someone has posted this before..but cant seem to see it.
Maybe kiekie and other users&sellers could help me

Whats the correct charging profile setting for mecuey 200ah fla battery.in a 24v setup

Equalization..31.5/32v?
Float....?
Boost/cycle..??

Is it same for luminous ans genuss fla battery?

It is the same. Same technology most likely same manufacturing process/facility. I use 30.5v for equalization. They (all the documentation I have read about Tubular FLA says 14.4 for absorption. Every last one from them from Luminous to Genus, Sukam and Eastman. I would suggest you stick to that.

simonjassy:


POPos is great, at least most of my friends say so,though i feel it is just ubuntu with an upgraded gnome 2.
What i dont understand is why many people who are not into security are using kali,since it was basically made for web security and hacking mostly penetration testing.could u give ur opinion why?

following the trend --- blindly? That is the only reason I can think of.

This road has been an issue since the 90s. I remember how much of a nightmare it is getting to school via that road between 1993 - 1998 sad to hear that little progress has been made and the situation is even now worse.

DMerciful:
An alternate forum will likely kill this our beloved forum. The reduction of activities might be because of Bubu's economy, but things will definitely pick up especially with the growing lithium revolution. My suggestion is for us to fix this our Nigeria than run abroad

Maybe and maybe not. Again the idea is to have an open place where people can have real time interaction. I will leave it open if anyone wants to join and also extend it to my social media circle. ads and experience here is becoming unbearable and as seen most members resort to read only mode. I hope it changes sha.

Namzy:

Using this slack pass defeating boko. Maybe the channel is set to private you have to send an invite to this email Namzynau@yahoo.com

Sorry I have been busy and haven't had time to check the board. search for #ng-solar-energy-group. I have invited you anyways

Namzy:

No password

Non needed,
Open a browser and sign in to Slack.
Click the "Channels" option on the left side of your screen.
Search for Solar FTA#ng-solar-energy-group.
Click on the channel to join.
Click "Join Channel" at the bottom of the screen to join the channel.

Dear all, I see that activity on this thread has be on the low of late and this is no doubt due to the assault from ad bombs which have driven away many users. This is a sad development. I have thus created a slack group called #NG-Solar-Energy-Group For anyone who does not know slack.

It is a realtime messaging board service (similar to the old yahoo message chat group) It is very easy to use and very interactive. This hope is not to replace this thread but to provide an alternative channel where discussion on renewable energy can take place in a clean environment.

The url for the group is thus [url]https://solarfta.slack.com/?redir=%2Fmessages%2FCEESMRKF1[/url] or [url]solarfta.slack.com[/url]
You just need to sign into slack to start using. The slack group will have dedicated rooms for ads, and for specific wind turbine, bio-mas/gas and micro-hydro technology.

Slack is supported on all major platforms Below are where you can download the various slack client available

Android
https://slack.com/downloads/android

OSX (Apple Mac)
https://slack.com/downloads/osx

Linux
https://slack.com/downloads/linux

Windows
https://slack.com/downloads/windows


iOS (iphone/ipad)
https://slack.com/downloads/ios

Once the app is downloaded, using slack is as easy as signing in and joining the group solarfta.slack.com

I hope we can use it to have a place for real time chat and communication. Again it is not meant to replace this thread because unlike a forum chat is more geared to was realtime and live engagement. I hope people can join and we can build a great community there.

blackweaver:


The last time I tried a rolling release: Arch Linux, which I admit is quite a hile ago, I kept having issues: installing one package will break anoher etc. I don't think I've ever had so many issues with any other distro. What probably made it worse was that the default install wasn't necessarily up to date.
I would like to believe they've gotten better, I also hope that Manjaro doesn't have those issues, but i'm not as adventurous as I used to be. For the most part I just stick to ubuntu mate/xubuntu/linux mint mate/linux mint cinnamon

We are on the same boat. Nothing rivals the balance of stability, relatively up to date packages and hardware support you get from debian/ubuntu based distribution. Although I did have fun memories when I tried arch which I outlined in my review of the experience back then https://bigbrovar./2009/03/16/archlinux-the-best-way-to-kiss/