₦airaland Forum

saint2ace:
Hello Ceaser how do you know when Ur bank is full? Been charging since yesterday and it's stuck at 12.7v.

By the way, got the cable and accessories from AliExpress, so far it works okay on my laptop but really doesn't last, guess my 18650 batteries are bad.

Anyone with good deals on original 18650 batteries.?

simydan:
I quite agree with you in the sense that LFP doesn't really need to be charged 100% full.
Even at 14.4V it's still not at 100% that is why the BMS is very important to see that the battery doesn't achieve a 100% full charge, keeping it at 95% - 99% charged.

Its wise to keep your charge voltage under due to fact that your charging device may not have LFP charge function.

I just hope our LFP BMS are top notch to be able to save us from unforeseen situations that may arise due to mistakes or faulty chargers.

If you have opportunity to get a full charge is a plus since it's around 3.6V per cell and still very safe and doesn't affect battery life.

justcallmenuel:
Thank you God for giving me another year of life.
Thank you for the experience of this past year.
Many congratulations on my new year/age
May God give me an amazing, exciting productive and adventurous life that I really desire to have.

Cheers� to a new beginning and chapter of my life.....HAPPY BIRTHDAY TO THE CEO OF MANUEL SOLAR ENERGY ENTERPRISES!!!



Your wishes will be greatly appreciate, thanks.

ojeysky:
So I have been reading more about LFPs lately, it actually seems charging up to 14.5+ which is manufacturer max voltage may kill the battery faster. Charging to 13.8v (with float at 13.4 for those of us who are stuck with float settings) seem to be a sweat spot that is being suggested to put the battery.

aguiyi2:
No one has bothered to explain how this virus affects humans?

remizvxcq:
more on LiFePO4 and other lithium purchasing wahala

I also have JA Solar 330W panels Poly for sale. NGN62,500 per each or buy pallet of 27 panels and get 5% discount per each. EXW Lagos warehouse

Topmost11:
This is dry season and I need to constantly clean my panels. Pls do I need to disconnect the panel from the CC before cleaning with water or I can just go ahead while still connected. My question may seem stupid as someone may ask me, "do you disconnect during rains or don't you know it's tantamount to rain falling on it?" I ask because splash ing water on it is sudden, cooling it almost immediately and it getting hot again in minutes unlike during rainfall when weather would have cooled it off first and then gradually heat up as sun come back up

Incidentally a medicine shop in my vicinity got burnt few days ago; story is the inverter caused it though i have not been able to get true gist. My colleagues who I've been advising on the beauty and sense in solar are now skeptical. How do I convince them?

ojeysky:
This is strange, hope it's not fake. There was a time I dreamt of purchasing a quanta



You can try a 12v 100AH lifpo4 which is 1.35kwh. The guy sells that at 110k you can reach him via his number.

simydan:
My LFP doesn't have alarm or display but I think the BMS is doing a great job. Though not yet connected to solar yet due to current resident but with the ac charger is rated 14.6v 20a.

The charger trips off at 14.4v and I noticed battery never goes above14.4v. So I'm guessing the BMS trips of charging once it gets to 14.4v.

earthrealm:
great news, seems i would try it as well. to replace a disaapointing 12v 200ah quanta, that barely lasts the night on a simple load of 40w to 60w, in this dry season.
since a 12v 200ah batt is abt 2.4kwh, i guess i would be ok with a 1.4kwh LIPO4 battery?. i wonder how much that would be

ojeysky:
Sorry that was a typo I meant to write 14.3. Original post updated

ojeysky:
Okay I don't have that option in mine so I had to set manually. You may want to check that bulk voltage of yours as it may be under charging the cells maybe you push your bulk to 14.6. My system cells has a charge up to 3.65 per cell (Which is 29.2) when I kept both float and bulk at 28.8 I experienced occasional spikes to 29.1 but things were stable with current settings.

justcallmenuel:
118litres Bona freezer is available, #98000. Contact us on 08168986461

Barezzi:
Yes, but a 13.8kwh BYD B-Box "drop-in" replacement will set me back over N3.5m
Do we really need 2 kidneys?

JUO:
There is believe in this forum that DOD does not affect lithium, this is not through. There is no battery that DOD does not have effect on. If you check lithium battery datasheet you will observe the graph decline from 100% DOD to a lesser number of cycles. Even higher charge/discharge have effect on the bms. Some will state 100A charge/discharge and at the same time put a recommended charge/discharge. Please note I am not saying lithium is bad in fact I will have 100ah/51.2v/5kwh and 12v/100ah/1330wh soon so if interested contact me

Dam5reey:
Abeg, In conclusion we should use MC4 connectors or Just cut and join wires?

I'm thinking of MC4 connectors oo,

I remember when my panels were producing less power, I had to rejoin the wires after the wires on Yachi panel became Rusty and burnt, but the Yingli panel with aluminum coated remain intact no sign of rust at all..

solasola:
Mc4 ko mc4 ni. Except you have the premium ones.

ojeysky:
So did you set both your float and bulk to 13.9v since lithium does not really use the float or bulk options? I currently have my float and bulk at 28.6 and 28.8 respectively. Just trying to figure whether to just put both at the same voltage level

nonoski:
I bought those useless luminous batteries myself from Simba in Lagos and had them shipped to Anambra.

I was so disappointed with the batteries when I saw each of them drop to 9v during load testing.

I didn't bother calling the Simba even duh they muted warranty when I was paying for them but I know how warranties work in Nigeria so I have made up my mind to discard the batteries. I don't even have flight money to spare to go to Lagos.

My problem now is which batteries do I go for?

I have been researching about the claim that having batteries on float almost all the tym is not good for batteries
Even duh it discharges every nite to about 15% DOD

Lithium batteries are out of my option coz it's in a remote location and indoors wouldn't want to burn down my inheritance

Dam5reey:
Nice one !, The future is here..
But I will still prefer cheaper all in one solution,
Something like this will be interesting when it's widely accessible.

ojeysky:
5.4KWH 24V lithium landed, will put to use within the week for testing before sharing my experience compared to my current 300Ah 24v Lead acid.
#LifePo4NewBie

ojeysky:
Is it really possible to avoid joining totally? For instance in my all series setup, I still had to cut the cable so as to extend the stock mc4

mctfopt:
Alright, we await the pictures.

zeestone99:
This is great my man. Money well spent. The cheap pwm will be makin one feel like he's saving money. Another thing I hate is having to change configuration on the roof anytime you alter/change your inverter.
As for me i can change inverter frequently. 1kva today, 5kva the following week. Client cal again and request for 48v, I then change to 3.5kva/24v then 10kva. Thank God for Mppt I for suffer. 12v today 48v tomorrow

mctfopt:
Awesome, the cells link connection gauge wire doesn't look less than 10mm². They also ran a 6s2p connection with I guess a LiFePO4 Battery Prismatic Cells. Though a lil rough, it appears solidly built. I hope they used a top-notch BMS. Have you considered changing the crocodile clip to a cable lug to ensure a tighter connection? Thanks for sharing the picture.

ceaser:
The 120ah is outside. Can get clearer pictures in the morning.

JUO:
guys please stay away from this battery. I will upload pictures later

ceaser:
Lithium of all types give impressive performance cycle-wise, charge-wise and DoD-wise.

Even though what you put in as charge is what you should expect to get as discharge, you don't need to be afraid if you are unable to charge it to full every blessed day cos it has no sulphation problems.

DoD, well, for the 3 years I've been a user of lithium iron on various small levels, 100% DoD has not really been harmful to the battery in the way it will affect lead acid. Of course the recharge cycles of Lithium is not unaffected by the DoD, but it is not something that steals your sleep like lead acid does.

It tolerates high recharge current and not beset by the recharge current limit problems of lead acid chemistry.

However as you have 10,000 cycle lithium, so also do you have 5,000 and even 300 cycles lithium. It's part of quality determinants and a seller may claim 300 cycle as 5,000 and sell it to you as such.

In terms of safety profile, charge density, DoD, and of course cost: - Lithium titanate > LFP > Lithium Iron.

mctfopt:
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.

ojeysky:
I am interested in the 24v lithium, do you mind sharing more details? Looks like lithium are trending towards affordability

spartacus11:
Thanks Bro kindly share pics of d inverter or a screenshot from the store in Aliexpress u got it from