abunafiu2:

And in future only few who have access to premium products are the only ones who will enjoy RE.
if an average income earner in Nigeria manages to save some hundreds of thousand naira, he should at least enjoy it for what its worth and not paying through the nose and at the end there is no justification.
Most of the sellers here on this forum are doing their best because forum members are better guided when it comes to making choice.
What of other Nigerians who have never heard of nairaland or even take their time to do research. Majority of those who have had bitter experience with going SOLAR belong to the category of those who aren't lucky to belong here or have access to information.
On facebook, you come across several adverts and you ask yourself how is it going to work?.
A member here who joined late few years ago contacted me on how to resolve issues with his set up. it was discovered that there was poor matching of components in the installation and this was done by a BIG NAME in the industry.



Something needs to be done urgently, otherwise as Oga GeorgeD1 said, it's gonna kill faster than Ebola.

nonoski:
I took time to take readings from the existing four batteries before connecting the ZHC Battery equalizer, duh they were charged but here are the readings
Battery 1 - 12.2v
Battery 2 - 12.2v
Battery 3 - 12.2v
Battery 4 - 10.2v

Connected in series 47v

I think I may need to discard one of the battery (battery 4).

cretin:


fully charged at 12.2v?. something is wrong, you may be lucky and its the bad batt of 10.2v affecting the system. are they fla or agm batts?

abunafiu2:
Battery Manufacturers and Battery Dealers in Nigeria:
You guys especially the Dealers are not helping the renewable energy industry to grow in Nigeria.
So many substandard batteries sold in the market without any form regulation by the authorities.
I am afraid, if this trend is not checked, the industry will die a slow death as more Nigerians are getting scared of tapping the endless opportunities presented by going SOLAR .
Industry giants, please save the Industry.

GeorgeD1:
abunafiu,
prof, true talk. and not only batteries but cuts across the whole array of
solar accessories including charge controllers, inverters and panels.
inferior products will kill any industry faster than ebola kills its victims.

TSHIRT2:
Sometimes names do it and sometimes they don't, personally I bought access brand of battery in April 2015 and as I write this, it's still doing wonders without any signs of weakness.

dejidotun2000:
Good day people.

I need a good quality , 3 stage, 12V DC battery charger capable of at least 30A.

It's to be used to charge a 12V, 400AH inverter battery bank.(the inverter lacks an inbuilt charger).

Many thanks for your inputs.

dejidotun2000:
Good day people.

I need a good quality , 3 stage, 12V DC battery charger capable of at least 30A.

It's to be used to charge a 12V, 400AH inverter battery bank.(the inverter lacks an inbuilt charger).

Many thanks for your inputs.

nonoski:
Lol
Why was the comment above me hidden?
Abi the person don commit

DMerciful:
My sunshine panel generation from 2016 till 2018....protective diodes keep increasing. 1diode early 2016, 2 diode mid 2016, 3 diodes 2018.

All cables are copper however I think mcTrinity is spot on wrt the substandards that abound. Just imagine within 2yrs there are 3 different connection box for sunshine panels.... same 250w mono

kiekie1:


Hello, what you are seeking for is rare .. I assume your current inverter dosnt charge ,why not sell the old 12v inverter unit and simply get a 12v 1000w or 2000w power inverter with inbuilt 50-70a adjustable intelligent charging feature ranging within 85-110k ! You can contact me if interested

Smartcell global services
081-350-31951

nonoski:
I took time to take readings from the existing four batteries before connecting the ZHC Battery equalizer, duh they weren't charged but here are the readings
Battery 1 - 12.2v
Battery 2 - 12.2v
Battery 3 - 12.2v
Battery 4 - 10.2v

Connected in series 47v

I think I may need to discard one of the battery (battery 4).

kiekie1:


Hello, what you are seeking for is rare .. I assume your current inverter dosnt charge ,why not sell the old 12v inverter unit and simply get a 12v 1000w or 2000w power inverter with inbuilt 50-70a adjustable intelligent charging feature ranging within 85-110k ! You can contact me if interested

Smartcell global services
081-350-31951

NiyiOmoIyunade:
Dear KieKie,

I have measured a max charging amperage of 40-45a on the 1.5kw 12v VilPower.... depending on battery DoD.

Have you confirmed if the 2kw 12v units take charging up to 50-70amps as you say?

kiekie1:


Yes it depends on battery DOD as you stated .. Trust your powerstar inverter systems are all doing great .. Thanks for the patronage so far ! Have a nice weekend Sir

NiyiOmoIyunade:
Oga KieKie I will wait for hard evidence to confirm if the 12v 2kw units get up to 50-70a. All my checking for the units I have access to max out at 45a.

It would be interesting what one could do with a 12v 70a charging source - I might just replace a large series connected battery bank with parallel connections and use the 2kw units as the main charge source.

With 12v parallel connections, I largely eliminate the issue of batteries going out of sync with each other.

GeorgeD1:
hello niyi, pranil, chris81964, dmerciful, et al,


now flip this around and lets do the maths for traditional lead-acid agm batteries.
again, i want to build a bank of 780ah batteries and i decide to visit yet another popular solar
website. i get trojan solar agm battery 12v 205ah for about 185k each. i would need at
least 16 units to reach my bank size goal. adding up at 48v this translates to a total 820ah.
which is 39.360kwh (playing up the lithium trick) and at a cost of 2.96million. at a glance
this is less than one-fifth of the cost for lithium with a significantly higher storage.

from a purely economic view point, it wouldn't make sense for me to ditch traditional lead-acid
in favour of lithium when i can get more for less. besides the phantom dod cycles, its lighter
weight plus the fact that you can bypass the usual bulk-absorb-float stages, what other
features does lithium has going in its favor to justify such humongous investment?

GeorgeD1:
hello niyi, pranil, chris81964, dmerciful, et al,
so i've been doing some thinking around this whole lithium battery thing and i'm still
struggling to see how present day costs justify the whole excitement it seems to be
generating. take a typical scenario: a 3.5kwh 48v simpliphi power lithium ferro phosphate
(lfp) battery costs about 1,550,000 naira on a popular solar website (names withheld).
using our usual piv power calculation, this translates to 72.9ah at 48v. if i want to make up
a bank of 780ah like i have presently, i will need about 10 units of this lithium battery
making 72.9ah x 10 or 729ah at 48v or 35kwh. this will set me back a whopping 15.5million
naira! even if i decide to do the smart thing and aim for 100% dod, i can only reduce this
cost by half but that will still be unacceptable at 7.25million just for batteries.

now flip this around and lets do the maths for traditional lead-acid agm batteries.
again, i want to build a bank of 780ah batteries and i decide to visit yet another popular solar
website. i get trojan solar agm battery 12v 205ah for about 185k each. i would need at
least 16 units to reach my bank size goal. adding up at 48v this translates to a total 820ah.
which is 39.360kwh (playing up the lithium trick) and at a cost of 2.96million. at a glance
this is less than one-fifth of the cost for lithium with a significantly higher storage.

from a purely economic view point, it wouldn't make sense for me to ditch traditional lead-acid
in favour of lithium when i can get more for less. besides the phantom dod cycles, its lighter
weight plus the fact that you can bypass the usual bulk-absorb-float stages, what other
features does lithium has going in its favor to justify such humongous investment?

chris81964:

The Simpliphi battery is an anomaly. You can find batteries that cost substantially less. The BYD might be the best bang for the buck.
Advantages
1. I don't need to oversize.
2. I don't need to Eq
3. No need to fully charge daily or any other time
4. 90% recharge within 90 minutes
5. No smells
6. No maintenance
7. Can use up to 90% of battery capacity
8. Cycle life up to 20 x better
9. Smaller space
I can go on and on

GeorgeD1:
hello niyi, pranil, chris81964, dmerciful, et al,

so i've been doing some thinking around this whole lithium battery thing and i'm still


from a purely economic view point, it wouldn't make sense for me to ditch traditional lead-acid
in favour of lithium when i can get more for less. besides the phantom dod cycles, its lighter
weight plus the fact that you can bypass the usual bulk-absorb-float stages, what other
features does lithium has going in its favor to justify such humongous investment?

earthrealm:


similar reason people buy supercars of $2m and above, when a range rover of under $100k can serve the same purpose

Barezzi:
@GeorgeD1,
If i remember correctly, the conversion is not 1:1 It's more like 3:1
A 300Ah Lead Acid (LA) battery bank is roughly equivalent to a 100Ah Lithium bank.

Your current LA capacity is roughly equivalent to a 260Ah Lithium bank... about N6m using your example.

Remember that your 780Ah bank has a usable capacity of 390Ah. A 300Ah Lithium equivalent should give you better value.

Correct me if i'm wrong @chris81964/dapsyra, you can grow your Lithium bank gradually. Start with 100Ah, and grow to 300Ah at anytime.
Unlike LA where one is limited to a max 3-month window to add new batteries.