Hmm.....my head don full as regards lead acid vs lithium battery debate. But i have some questions
1. To use lithium battery do i have to discard my ordinary 3-stage digital charger for lithium charger?
2. Do i need to discard my mppt cc that can NOT be manually controlled to lithium charge measure given that trickle charging kills lithium battery after battery is full?
3. What is the faith of carbon lead acid battery in terms of longentivity? Thanks.

ceaser:


Gbam! The LTO man has spoken.

Very interesting analysis. Unfortunately George D doesn't agree. The selling point for litihum is the quick recharge rate just like fast charging on mobile phones. God knows we need fast recharging in this raining season

Deluxe8000:
Hmm.....my head don full as regards lead acid vs lithium battery debate. But i have some questions
1. To use lithium battery do i have to discard my ordinary 3-stage digital charger for lithium charger?

Not at all, you just need to adjust the bulk/float voltages

2. Do i need to discard my mppt cc that can NOT be manually controlled to lithium charge measure given that trickle charging kills lithium battery after battery is full?

Since it's a battery that you use daily, trickle charging won't have any negative effect. So you mean your CC bulk/float charging voltages cannot be adjusted? If yes, what's the default bulk/float voltages?

3. What is the faith of carbon lead acid battery in terms of longentivity? Thanks.

I found it to be quite interesting, like LTO it does not degrade with discharge to zero voltage. Volume, cost and weight will be a deciding factor for me if am to consider both.

tivta:


Very interesting analysis. Unfortunately George D doesn't agree. The [b]selling point for litihum is the quick recharge [/b]rate just like fast charging on mobile phones. God knows we need fast recharging in this raining season

Don't ignore weight and volume as well, my 24v 560AH Lithium is about 80kg which is equivalent to a 12v 280AH both in size and weight (1.5 of 200AH) lead acid. However in capacity you will need eight 12v 200AH lead acid or 6 2v 2000AH Exide. Note that a 2v 2000AH Exide is 160kg in weight.

I have found the debate on lithium vs lead acud batteries very interesting and educative. For me i think the lithium is designed for those with space and weight constraints like boats, ships, planes, etc. Despite its advantages, cost is a major decider for me. I no get kidney to sell .
I have a major concern though on my solar array. I observed it does bulk charging /absorption in about 3hrs and goes to float for the rest of the day. Is it supposed to charge that fast?

In the morning when I check, the battery is at 48.4 v with the lowest individual battery volt at 12.08v. CC battery indicator shows i am just above 50% capacity.

My Set up is thus:
1. 30 x 320watts flames panels (mono), set up as 3S5P. 15 panels directed to one solar CC.
2. 2 x MUST MPPT Solar CC (100A)
3. 16 x 200AH @C10 Flooded Luminous batteries. (i ensure i don't reach 50% DoD. 4S2P batteries connect to each inverter
4. 2 x 5kva 48v Mopower inverter.
5. Sukam 48v battery management system. (Although I feel this is a waste since the CC has equalization function).

Is it normal for my CC to be charging the batteries at float stage just after 3hrs? I feel its too fast. Any suggestion or thought? or could it be that it is in the absorption stage but the indicator is giving a wrong indication of being in the float stage.

GeorgeD1:
....

truth is that each battery chemistry have their place. depending on its application, none is superior to the other.
crucially, on a price to amp/hr basis and ease of deployment vs maintenance, lead acid wins hands down. it is the
reason why you won't find telecoms base stations or banks installing lithium (yet) as their primary battery banks.
they rather go for trusted and tested technology which don't need tinkering with before it can perform.
that said, nobody is ignoring lithium. far from it. personally i'm all for new technology, never against innovation.
i look forward to a time when lithium becomes mainstream just like lead acid. from li-ion to lifepo4 and now lito.
it can only get better. but anyone thinking lead acid will go away anytime soon better brace up and get ready
to be disappointed!

As I said previously, the war isn't against lithium. Lithium proponents keep thinking old school lead dudes are having inertia or fear-of-the-unknkown/FUD issues. That's an unkind thing to say. We're all interested in the latest gizmos which work as well as the ease of life which advancements in technology bring. If it works for me, it works. If it doesn't, it doesn't. Incidentally, some of the loudest voices for lead have either previously used lithium or secretly have smaller banks of lithium deliberately undeclared. Some don't want to be dragged into a mudfest thus opted to remain silent. I know some of them.

My house is powered by dual banks of 48V FLA 205Ah lead and 48V 200Ah VRLA lead. Security stuff have a separate 24V 200Ah lead backed by a 24V 80Ah LiFePO4. I assure you I am not wasteful. All my lights (save one bulb deliberately kept as memento) are LED. My security lights have been DC lLED floodlights for over 10 years. I haven't replaced them; intensely bright and they come highly recommended to whomever wishes to port to DC lighting (Quans brand). TVs are LED, ACs & washing machine are inverter type, refrigerators and freezers are A+ energy star devices (replaced energy guzzlers gradually over the years). This is my comfort zone. I don't run ACs at night. Unless there's a problem or I have guests, DoD rarely exceeds 20%. I have power 24/7 and switch to grid at will (rarely though) via either via passthru on System A (hard disabled and requires manual activation) or industrial contactors on System B (hard disabled by default too). I essentially live off-grid. You don't change a winning team. You can improve them/on them however.

Now, over the past 10 years, I have replaced all the lead acid banks just once (VRLA and FLA). The LiFePO4 bank has persisted across these upgrades (gave them out for a while and they were returned thoroughly abused but kicking strong). They even survived overcharging a few cycles (meaning I know just how robust they can be; I've had Li-Ion burn brilliantly on my bench despite safety precautions - BMSes also fail).

And that's what GeorgeD1 is saying. Get what works for you. I had the LiFePO4 some time before it became a hype yet continued using lead acid for reason of it satisfying the purposes I had in mind. Should lead acid fail me, I'll change in an instant. I have all the space I need and about 5kWp of solar panels sitting in my store. Coulombic efficiency is irrelevant to me (though that's wrong). See, that's what matters right there - application.

I don't see everyone driving a Ferrari around because it'll take you around faster or a tractor because it's die hard or a truck because of its stability on the road. Heck, despite all the advantages of having an electric car, I know how many I see on the roads daily. Even the hybrids which require no real special support infrastructure aren't nearly as common as gasoline engine cars. I don't think it's affordability. And let no one tell me this is a comparison of apples and oranges.

All my RE gear (save for the Midnite powering security stuff) are Victrons and lithium ready. I even stupidly sold off all my older Victrons recently and replaced them with the latest offerings. I am waiting for the right time to port. I will switch battery chemistries someday, when either lead no longer satisfies my requirements of it or when refusing to use a better option (lithium or whatever works at the time) becomes plain dumb.

Until then, each to his own tents. There is no war; there hasn't been and there will not be.

Saipro:

If it works for me, it works.

Well said sir. Use whatever works for you.

Interesting take Saipro. Truly, to each his own.

[color=#000099][/color]This is a special thank you message to @justcallmenuel for delivering on his promise. I purchased 2# 200ah 48v Felicity lithium batteries from him and he delivered it to Calabar within the time frame he promised...3 days. Please, keep this good customer service relationship alive.

I have done capacity test on the batteries. Here are my findings...

* The two batteries were connected in parallel.

* Batteries were fully charged (there was no further intake of amps as indicated by the coulomb meter)

* All external power sources were isolated.

* Load of greater than 2kw was introduced to the inverter. Inverter cut-out voltage was set at 48.5v.

* After inverter cut-out, the meter readings were:

Voltage: 48.6v

Energy: 12.442kwh (about 6.221kwh useable energy per 200ah 48v Felicity lithium battery)

Amp Hour: 239.7ah (about 120ah useable amps per 200ah 48v Felicity lithium battery)

* It is possible that I could have gotten a little more out of the batteries... But this is where I had the heart to stop.

* Is it wise to put money on this battery as compared to lead acid? I guess it is down to individual preference.

* For me, I am still experimenting... The financial implications of Felicity lithium to lead acid batteries is almost the same.

12# Ritar batteries @120k each cost 1,440,000 naira.
Useable energy cost is 100 naira per 1wh
(3 banks X 48v X 200ah = 28,800wh ÷ 2 = 14,400wh)
1,440,000 naira ÷ 14400wh = 100 naira per wh or 1k per KWh.

2# Felicity 200ah 48v lithium batteries @700k each cost 1,400,000 naira.
Useable energy (based on personal capacity test) cost is 113 naira per wh
(1400000 naira cost of 2# batteries ÷ 12442wh = ~113 naira per wh or 1.03k per kwh.

As I said, I'm still experimenting. Durability and rate of degradation is hanging for now.

adrusa:
I bought the 48v Felicity lithium and my first impression is not good. I tried to do a test drain overnight. It gave me about 90AH drain overnight. I then set my Water Pump on it to drain it further. I got to about 115AH when my inverter shutdown at about 49v. I wasn't sure which shut down first, my inverter or the battery. But the battery was still (or back) on when I checked. At this point, I can not recommend this battery based on expected AH output.

Goodday any further feedback on this battery? How is it acting now? Thanks

Brownsona:
[color=#000099][/color]This is a special thank you message to @justcallmenuel for delivering on his promise. I purchased 2# 200ah 48v Felicity lithium batteries from him and he delivered it to Calabar within the time frame he promised...3 days. Please, keep this good customer service relationship alive.

I have done capacity test on the batteries. Here are my findings...

* The two batteries were connected in parallel.

* Batteries were fully charged (there was no further intake of amps as indicated by the coulomb meter)

* All external power sources were isolated.

* Load of greater than 2kw was introduced to the inverter. Inverter cut-out voltage was set at 48.5v.

* After inverter cut-out, the meter readings were:

Voltage: 48.6v

Energy: 12.442kwh (about 6.221kwh useable energy per 200ah 48v Felicity lithium battery)

Amp Hour: 239.7ah (about 120ah useable amps per 200ah 48v Felicity lithium battery)

* It is possible that I could have gotten a little more out of the batteries... But this is where I had the heart to stop.

* Is it wise to put money on this battery as compared to lead acid? I guess it is down to individual preference.

* For me, I am still experimenting... The financial implications of Felicity lithium to lead acid batteries is almost the same.

12# Ritar batteries @120k each cost 1,440,000 naira.
Useable energy cost is 100 naira per 1wh
(3 banks X 48v X 200ah = 28,800wh ÷ 2 = 14,400wh)
1,440,000 naira ÷ 14400wh = 100 naira per wh or 1k per KWh.

2# Felicity 200ah 48v lithium batteries @700k each cost 1,400,000 naira.
Useable energy (based on personal capacity test) cost is 113 naira per wh
(1400000 naira cost of 2# batteries ÷ 12442wh = ~113 naira per wh or 1.03k per kwh.

As I said, I'm still experimenting. Durability and rate of degradation is hanging for now.

great job doing this comparism, from my research the major wahala with the drop in lifepo4 is a bad cell in the pack, or seller/manufacturer using smaller cells than advertised, grade b or grade c cells, or used cells and not new since everything is covered up in a nice looking case,

Its some work tearing it down to test...and being nigeria with almost zero warranty, even if you find something wromng, will the manufacturer or seller man up and do the right thing??...heck nope this plus the reviews from the few brave souls here, made me decide to go DIY, and build my pack, if i want to go lithuim, its being an interesting journey so far, researching, ,asking questions, reading and reading............ . targetting a 48v 400ah/560ah bank, and a 4800w array, should be enough to take me offgrid, or at least slash my phcn bill by 80%, and enable me run 1 ac whenever i want

danowena:


Well said sir. Use whatever works for r you.

Which is same thing that others have been saying as well(including myself). I will just add that people should stop referring to those using lithium as advance people, it's not the case at all. It's also no longer valid that a truly equivalent cost of a lead acid is less expensive than a Lithium equivalent. Ultimately it depends on individual preference.

It should not be a war between both chemistry, it should be an attempt to have one another informed and updated so each person can make an independent but informed decision!

DUNKA:
Goodday any further feedback on this battery? How is it acting now? Thanks

For what it is, it is doing well.

wilmaria14:
200ah is 200ah acid or not it will not perform to dat standard

this should be relative....in talking about advised usable capacity, they could be said to be close enough for onw to replace the other

ojeysky:


Which is same thing that others have been saying as well(including myself). I will just add that people should stop referring to those using lithium as advance people, it's not the case at all. It's also no longer valid that a truly equivalent cost of a lead acid is less expensive than a Lithium equivalent. Ultimately it depends on individual preference.

It should not be a war between both chemistry, it should be an attempt to have one another informed and updated so each person can make an independent but informed decision!

Truly said sir

Fangpusun 50amps 12v/24v available

Price - 55k

Call - 08117398294
Chat - http:///2348117398294

Trippledots:


this should be relative....in talking about advised usable capacity, they could be said to be close enough for onw to replace the other

Hmm

Brownsona:
[color=#000099][/color]This is a

Amp Hour: 239.7ah (about 120ah useable amps per 200ah 48v Felicity lithium battery)

* It is possible that I could have gotten a little more out of the batteries... But this is where I had the heart to stop.

* Is it wise to put money on this battery as compared to lead acid? I guess it is down to individual preference.

* For me, I am still experimenting... The financial implications of Felicity lithium to lead acid batteries is almost the same.

12# Ritar batteries @120k each cost 1,440,000 naira.
Useable energy cost is 100 naira per 1wh
(3 banks X 48v X 200ah = 28,800wh ÷ 2 = 14,400wh)
1,440,000 naira ÷ 14400wh = 100 naira per wh or 1k per KWh.

2# Felicity 200ah 48v lithium batteries @700k each cost 1,400,000 naira.
Useable energy (based on personal capacity test) cost is 113 naira per wh
(1400000 naira cost of 2# batteries ÷ 12442wh = ~113 naira per wh or 1.03k per kwh.

As I said, I'm still experimenting. Durability and rate of degradation is hanging for now.

That is what previous users have said about this battery as well. However I don't think it's accurate it say it's 120AH usable. It's actually a 120AH capacity LFP that felicity keeps selling as 200AH, it's very unfortunate!

Saipro:

As I said previously, the war isn't against lithium. Lithium proponents keep thinking old school lead dudes are having inertia or fear-of-the-unknkown/FUD issues. That's an unkind thing to say. We're all interested in the latest gizmos which work as well as the ease of life which advancements in technology bring. If it works for me, it works. If it doesn't, it doesn't. Incidentally, some of the loudest voices for lead have either previously used lithium or secretly have smaller banks of lithium deliberately undeclared. Some don't want to be dragged into a mudfest thus opted to remain silent. I know some of them.

And that's what GeorgeD1 is saying. Get what works for you. I had the LiFePO4 some time before it became a hype yet continued using lead acid for reason of it satisfying the purposes I had in mind. Should lead acid fail me, I'll change in an instant. I have all the space I need and about 5kWp of solar panels sitting in my store. Coulombic efficiency is irrelevant to me (though that's wrong). See, that's what matters right there - application.


Until then, each to his own tents. There is no war; there hasn't been and there will not be.

well done bro. you took the words right out of my mouth. nobody is fighting anybody on here. just pure
intellectual discourse.
my concern mainly though is we should all try to put things in their proper perspective.
(and i must say you certainly have done a better job than myself in putting your own personal usage experience
to bear on the various battery chemistry types in question)
unknown to us, a lot of newbies and would-be solar enthusiasts do visit this thread and make decisions based
on what they read. it would really be unfair to them if we paint an unnecessarily glossy image of lithium only
for them to dabble into it before realizing things were not nearly as rosy as they thought.

funshyboi:

Yes you’re right it’s those INEC battery and possibly it lasted because I’ve been charging it with electricity and using it for just laptops until now
Trust me I’ve gone tru the manual times without number the English there is not explanatory at all.

I’ve long pressed the buttons too but maybe I will still do for a longer time Again

Please can I inbox you?

bro, you might have to consider changing out that cc if you really want to charge your battery with solar.
i'm thinking that cc may be one of those rudimentary types that don't have any user adjustable setting
and this could be bad news for your batteries.

Solar pump of all size available
WhatsApp 08028074483

danowena:
I have found the debate on lithium vs lead acud batteries very interesting and educative. For me i think the lithium is designed for those with space and weight constraints like boats, ships,

Is it normal for my CC to be charging the batteries at float stage just after 3hrs? I feel its too fast. Any suggestion or thought? or could it be that it is in the absorption stage but the indicator is giving a wrong indication of being in the float stage.

I feel you may have some bad/weak batteries in the mix, i suggest you buy or borrow a 12v battery load tester and check each battery 1 by 1.

Charging very fast is a classic sign of bad battery, how old is your battery?.
When did you introduce solar?. Hope from day 1, cos that inverter looks like a dumb inverter, not capable of charging fla batts.

Lastly, hope your cc is configured properly to charge flooded battery, what are your absorb and float voltage settings

wilmaria14:
Solar pump of all size available
WhatsApp 08028074483

Do you have any solar pump of below 350w ac or dc, doesnt matter

GeorgeD1:


well done bro. you took the words right out of my mouth. nobody is fighting anybody on here. just pure
intellectual discourse.
my concern mainly though is we should all try to put things in their proper perspective.
(and i must say you certainly have done a better job than myself in putting your own personal usage experience
to bear on the various battery chemistry types in question)
unknown to us, a lot of newbies and would-be solar enthusiasts do visit this thread and make decisions based
on what they read. it would really be unfair to them if we paint an unnecessarily glossy image of lithium only
for them to dabble into it before realizing things were not nearly as rosy as they thought.

This so-called "war" was started by your attempt to run down lithium. We were only correcting your wrong assertions about it. We all started with Lead Acid and I still have a lead acid bank that I run side by side with lithium. Lithium is the better option if cash is not a problem. That is not even open for debate except for people who do not follow progress of renewable energy. Lithium is all the rage at the moment. Just check international solar fora if in doubt. Anyone who can maintain lead acid can certainly maintain lithium. All that is required is to set proper charging parameters, just like it is required for lead acid.

The idea of "get what works for you" is even not there. If lead acid can work for you, lithium will work for you better, if you have the cash to put down. Finally, let me answer one issue you raised. Why are telecoms companies still running lead acid? Because telecom companies use batteries as UPS, not to run their services. Their batteries are expected to be floating most of the time, and not deeply used to any degree. That is why "used" telecoms batteries are highly prized; they are regarded as having received little to no use. And if you really don't run on battery and you only use it as UPS to prevent shutdowns when you are changing power sources, there is no reason to put so much resources in batteries meant for deep discharges like lithium. And lithium does a lot worse when kept constantly floating. Lithium actually prefers partial charge. That is why there are apps to prevent your phone and laptop batteries from charging to 100% to prolong their life. If you need batteries that will be kept floating for months and months, go lead acid, lithium is not suitable for such usage pattern.

For newbies, we cannot overstate it, if you have the cash go lithium right from the gate. That is where many people will be in 5-10 years time. All those urging you to do lead acid, would have moved. And like they say, misers pay twice. Some of us started our solar journeys with cheapos solar panels (e.g. no name brand), charge controller (e.g. phocus pwm), inverter (eg. no name chinese inverters) before we realised the benefits of paying top money for good, tested and trusted brands like Victron, Outback etc. If you have the means, go big, go lithium, the only thing to fear about lithium is fair itself. I have tasted both words substantially. 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).

If you don't have the means, good lead acid will still serve you, just not as good as lithium.

By the way, I was banned for my last lengthy post. I have no idea why. My first time of experiencing the dreaded Nairaland erratic banning bots. I hope I wont be banned for this.

earthrealm:


I feel you may have some bad/weak batteries in the mix, i suggest you buy or borrow a 12v battery load tester and check each battery 1 by 1.
Charging very fast is a classic sign of bad battery, how old is your battery?.
When did you introduce solar?. Hope from day 1, cos that inverter looks like a dumb inverter, not capable of charging fla batts.

Lastly, hope your cc is configured properly to charge flooded battery, what are your absorb and float voltage settings

Thank you for the response. i will get to it this week.

[quote author=adrusa post=95
For newbies, we cannot overstate it, if you have the cash go lithium right from the gate. That is where many people will be in 5-10 years time. All those urging you to do lead acid, would have moved.[/quote]

Your post makes a lot of sense. Recent telecom base stations installation requiring Generator-Battery-hybrid operation now use lithium batteries such as LG chem and Huawei,while those with generator-Utility synchronisation still use lead acid batteries.
The high cost of procurement could be the reason the batteries are immediately fortified against theft incident. Most of them in operation are usually set to 75% DoD.
This might not be the time to sort after telecom batteries as they might run most of their life cycle before been disposed.

adrusa:


This so-called "war" was started by your attempt to run down lithium. We were only correcting your wrong assertions about it. We all started with Lead Acid and I still have a lead acid bank that I run side by side with lithium. Lithium is the better option if cash is not a problem. That is not even open for debate except for people who do not follow progress of renewable energy. Lithium is all the rage at the moment. Just check international solar fora if in doubt. Anyone who can maintain lead acid can certainly maintain lithium. All that is required is to set proper charging parameters, just like it is required for lead acid.

For newbies, we cannot overstate it, if you have the cash go lithium right from the gate. That is where many people will be in 5-10 years time. All those urging you to do lead acid, would have moved. And like they say, misers pay twice. Some of us started our solar journeys with cheapos solar panels (e.g. no name brand), charge controller (e.g. phocus pwm), inverter (eg. no name chinese inverters) before we realised the benefits of paying top money for good, tested and trusted brands like Victron, Outback etc. If you have the means, go big, go lithium, the only thing to fear about lithium is fair itself. I have tasted both words substantially. 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).

If you don't have the means, good lead acid will still serve you, just not as good as lithium.

By the way, I was banned for my last lengthy post. I have no idea why. My first time of experiencing the dreaded Nairaland erratic banning bots. I hope I wont be banned for this.

lolz bro! i guess you may need to read my post all over again because you totally missed the point.
nobody started any war (contrary to your assertions) and if engaging in intellectual discourse is considered a "war"
(in your opinion) then i guess it's a good "war". meanwhile, i'm sure the newbies are seriously taking note and they
surely are the real beneficiaries from all the back and forth exchanges.
having said that, i repeat my stand that both lithium and lead acid have their place (in case you might not be so
inclined to go over my past submissions), so no one battery chemistry is better than the other.
what works, works and what doesn't work doesn't work. most peeps today still use lead acid because it works for
them. i mean, think about it, why change a winning team? the fact that some people dabbled into it ill-informed
and got their fingers burnt doesn't mean we should condemn lead acid and begin to play up the lithium card as
the magical solution for our storage problems. any attempt to gloss over the negatives will mean folks might likely
repeat whatever mistakes they made with lead acid that pushed them into looking for salvation in a new battery
chemistry. and the chase goes on and on with many getting disillusioned with renewables in the end.
once again, my take: let's put things in their proper perspective so that would-be enthusiasts will have a fair idea
what they are getting themselves into. i'm sure that's not too much to ask for?

GeorgeD1:


lolz bro! i guess you may need to read my post all over again because you totally missed the point.
nobody started any war (contrary to your assertions) and if engaging in intellectual discourse is considered a "war"
(in your opinion) then i guess it's a good "war". meanwhile, i'm sure the newbies are seriously taking note and they
surely are the real beneficiaries from all the back and forth exchanges.
having said that, i repeat my stand that both lithium and lead acid have their place (in case you might not be so
inclined to go over my past submissions), so no one battery chemistry is better than the other.
what works, works and what doesn't work doesn't work. most peeps today still use lead acid because it works for
them. i mean, think about it, why change a winning team? the fact that some people dabbled into it ill-informed
and got their fingers burnt doesn't mean we should condemn lead acid and begin to play up the lithium card as
the magical solution for our storage problems. any attempt to gloss over the negatives will mean folks might likely
repeat whatever mistakes they made with lead acid that pushed them into looking for salvation in a new battery
chemistry. and the chase goes on and on with many getting disillusioned with renewables in the end.
once again, my take: let's put things in their proper perspective so that would-be enthusiasts will have a fair idea
what they are getting themselves into. i'm sure that's not too much to ask for?

Batteries are all about chemistry and the assertion that "no one battery chemistry is better than the other" is the ultimate untruth in chemical power storage. I don't think I need to add anything to that. Enjoy bros.

GeorgeD1:


once again, my take: let's put things in their proper perspective so that would-be enthusiasts will have a fair idea
what they are getting themselves into. i'm sure that's not too much to ask for?

While I agree with you on the above and I have personally ensure to share my experiences with screenshot. They are not shared to attract customers for a few Lifepo4 accessories that I have but rather to further inform people and so I can also learn. However, I quote one of your posts below which actually isn't keeping to what you've stated above.

GeorgeD1:


be careful bro, 200ah 24v lead acid is far higher in capacity compared to 100ah 24v lithium.
don't get sucked in by the lithium hype.

Lithium isn't hype, I have used both lead acid and now lithium and will repeat that it's not hype! it's very misleading to newbies who read this thread because there is more devil in the details when it comes to safe usable capacity threshold of both battery chemistries.

earthrealm:


great job doing this comparism, from my research the major wahala with the drop in lifepo4 is a bad cell in the pack, or seller/manufacturer using smaller cells than advertised, grade b or grade c cells, or used cells and not new since everything is covered up in a nice looking case,

The bolded could have been the case if the BMS tripped before the set battery cutoff voltage which was set to 48.5v. 90 to 95% of the juice is within 3 to 3.4v so it seem the cells are matched or very close.

Its some work tearing it down to test...and being nigeria with almost zero warranty, even if you find something wromng, will the manufacturer or seller man up and do the right thing??...heck nope this plus the reviews from the few brave souls here, made me decide to go DIY, and build my pack, if i want to go lithuim, its being an interesting journey so far, researching, ,asking questions, reading and reading............ . targetting a 48v 400ah/560ah bank, and a 4800w array, should be enough to take me offgrid, or at least slash my phcn bill by 80%, and enable me run 1 ac whenever i want

Bros you've been targeting these your bank for some time, I hope the order is on the sea already. Do enjoy your cells and ofcourse do kindly share your experience good or bad.