mctfopt:


Oh, this inverter. It always has the issue of charger failing..There is this high possibility that the charger has failed. You can buy a 12v standalone charger to act as charger.

oh.
please what does this 12v charger look like and how to connect?

adrusa:


Can people please share their opinion on felicity inverters as to durability, stability and idle consumption. Thank you in anticipation.

I don't know if you still need this, but I did a review on it a while back https://bobby.com.ng/2017/06/28/felicity-inverter-a-short-review/

Hello house. I need a used 48v victron charge controller,anybody willing to sell should contact me. Thanks.


Call 09067411214,08117398294

tonididdy:

oh.
please what does this 12v charger look like and how to connect?

Check online. Same way inverter was connected to the battery.

tonididdy:
my inverter suddenly stopped charging with generator... what could be wrong?


secondly am moving into my home in August.
I need a breakdown of what can power these devices.

-six 5w bulbs (4 of the bulbs will be continuously on through the night from 6pm till dawn).

-a 60w led TV (the TV can reduce to about 30/40w with energy mode on).

-decoder.

-game console (this is about 170w, this will be used randomly at least 3 to 4hrs straight)

-three 30w standing fan (these will run through the night 6-6).

-a freezer ( not sure the rating. my current hisense refrigerator is 170w, I will consider to acquire a lower wattage deep freezer, this will run almost 24hrs, NEPA and generator inclusive).


I look forward to your quotes.
I am also willing to work with any nairalander as I am not a DIY guy (the numbers and terms here give me headaches lol).


thanks, Diddy.

i hope you have solar, that inverter is too rudimentary to charge those flooded batterys well

tonididdy:

it's being very good for me too.
but suddenly stop charging with my gen.

the generator has an inbuilt battery charger 12v 8amps

Mine is downstairs, and it also doubles as my study.

cretin:
...extra room in the duplex dedicated solely to power/inverter and the space will also serve as my study...

I'd like to stack 4 of them in parallel for 30kwh 48V. Is it possible?

NoMoreTrolling:


Wow, I can’t believe it!

Someone should please run a test on this batteries. They seem too good to be true.

7.5kwh of lithium for 600k?

Anybody in the house using them?

earthrealm:


i hope you have solar, that inverter is too rudimentary to charge those flooded batterys well

yes I have panels

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Barezzi:
I'd like to stack 4 of them in parallel for 30kwh 48V. Is it possible?

According to specs it can be paralleled up to 6 units

Barezzi:
I'd like to stack 4 of them in parallel for 30kwh 48V. Is it possible?

According to specs it can be paralleled up to 6 units.

ojeysky:
Finally MPP is sending me a replacement board for my GK (the Comms panel was not the pro, it was the main board), but they are sending me 5kva instead.....guess they are out of stock on 3kva Boards, I screamed at them small sha.

However, I think it's blessing in disguise just that the blessing means more expenses for me as I need to now go 48v. I will be putting up some of my 24v backup LFP gears up for sale to anyone interested soon.

Apparently it seem MPP took that part serious, they withdrew the 48v and sent me the 24v. When I insisted on 48v they claim that after further check the it won't be compatible with 3kva container though they had earlier indicated that they are compatible.
I was already looking to experience 48v efficiency

ojeysky:


Apparently it seem MPP took that part serious, they withdrew the 48v and sent me the 24v. When I insisted on 48v they claim that after further check the it won't be compatible with 3kva container though they had earlier indicated that they are compatible.
I was already looking to experience 48v efficiency

Lol

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ojeysky:


Apparently it seem MPP took that part serious, they withdrew the 48v and sent me the 24v. When I insisted on 48v they claim that after further check the it won't be compatible with 3kva container though they had earlier indicated that they are compatible.
I was already looking to experience 48v efficiency

Kindly note that the efficiency difference of 12v, 24v and 48v is very very minimal, not more than 1%. The advantage of 48v system is in the cable size. Less stress with cable, eg 12v 5000w, I will be dealing with nothing less than 120mm2 while at 48v 5000w, 50mm2 is very generous.

ojeysky:


Apparently it seem MPP took that part serious, they withdrew the 48v and sent me the 24v. When I insisted on 48v they claim that after further check the it won't be compatible with 3kva container though they had earlier indicated that they are compatible.
I was already looking to experience 48v efficiency

Did you speak to 'em in Chinese or Mandarin? Cos this one that they understand your displeasure at them when you screamed

Oshomo12:


Kindly note that the efficiency difference of 12v, 24v and 48v is very very minimal, not more than 1%. The advantage of 48v system is in the cable size. Less stress with cable, eg 12v 5000w, I will be dealing with nothing less than 120mm2 while at 48v 5000w, 50mm2 is very generous.

Yeah cable was what I thought to be the only major advantage as well, until I saw the figures MPP was throwing around (took some time off to read about what I will be getting with the 48v).

1.5kw of load on a 24 200AH gives about 170 mins backup time but same load on a 48v 200AH gives over 400min(which is 200min if we are to match kWh capacity) so I get 30min extra backup time running 48v 100AH battery as against 24v 200AH

ceaser:


Did you speak to 'em in Chinese or Mandarin? Cos this one that they understand your displeasure at them when you screamed

Even me I was surprised myself, I just concluded that they probably made a mistake initially and it was my mail that served as a reminder

I am presently out of town. My host has a 24v microtec inverter, 4×100ah battery(series of course) and 4×250watts panels(don't know if series or parallel).
Their complaint is initial batteries lasted 8 months. Installer then brought and replaced two batteries with used GBM and decommissioned two batteries leaving 2×100ah in series. The installed batteries are 6months now and backup time has again reduced drastically.

My question is what kind of installer will expect 1000 watts panel to effectively charge 400ah battery? He even told them at the first complaint that 6 months had lapsed(they called him after 8 months)so warranty is no longer valid. Thus he will not be able to do anything. That was why they paid for two used batteries because of paucity of funds. These kind of installers discourage people from solar.

I have advised that in the interim, they incorporate a knife switch between CC and batteries and then rewire to two units of 2×100 batteries. Thus batteries can be interchangeably charged every other day. I also spoke on changing from 14 watts bulbs to 5 watts, stop the use of conventional ceiling fans and generally learn efficient use of energy.
I also advised that when funds are available, if they still want to revert to 400ah battery backup they should first get additional 2×250watts panels before even thinking of buying new batteries. And also read up on the workings of AE especially solar.

ojeysky:


Yeah cable was what I thought to be the only major advantage as well, until I saw the figures MPP was throwing around (took some time off to read about what I will be getting with the 48v).

1.5kw of load on a 24 200AH gives about 170 mins backup time but same load on a 48v 200AH gives over 400min(which is 200min if we are to match kWh capacity) so I get 30min extra backup time running 48v 100AH battery as against 24v 200AH

Thanks for the data sheet. Kindly check the figures very well, 24v @1500 on a 200ah gives 164mins while 48v @1500va on a 100ah gave 158mins!

ojeysky:


Yeah, cable was what I thought to be the only major advantage as well until I saw the figures MPP was throwing around (took some time off to read about what I will be getting with the 48v).

1.5kw of load on a 24 200AH gives about 170 mins backup time but the same load on a 48v 200AH gives over 400min(which is 200min if we are to match kWh capacity) so I get 30min extra backup time running 48v 100AH battery as against 24v 200AH

Thanks for the datasheet. Kindly check the figures very well, 24v @1500 on a 200ah gives 164mins while 48v @1500va on a 100ah gave 158mins!
48v@100ah(4800whr)
24v@200ah(4800whr)
Pls, let me know if I am looking at this the wrong way.

Oshomo12:


Thanks for the datasheet. Kindly check the figures very well, 24v @1500 on a 200ah gives 164mins while 48v @1500va on a 100ah gave 158mins!
48v@100ah(4800whr)
24v@200ah(4800whr)
Pls, let me know if I am looking at this the wrong way.

I am looking at it in a different way which may not necessarily be the wrong way as you put it. I am focusing on 24v @200ah which is 164min and 48v @200ah 402min. On a normal basis one would have expected 48v @200 to be 164x2= 324min but it's instead a whopping 402min.
So that simply means that there is lower loss with 48v than it is with 24v. I hope that helps

ojeysky:


Apparently it seem MPP took that part serious, they withdrew the 48v and sent me the 24v. When I insisted on 48v they claim that after further check the it won't be compatible with 3kva container though they had earlier indicated that they are compatible.
I was already looking to experience 48v efficiency

WHO is bearing the cost for all this, you or MPP?

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LOW POWER 2HP LG Air-conditioner. Pretty cool.

earthrealm:


WHO is bearing the cost for all this, you or MPP?

I was lucky it was still under warranty, paid a little processing fee though

ojeysky:


I am looking at it in a different way which may not necessarily be the wrong way as you put it. I am focusing on 24v @200ah which is 164min and 48v @200ah 402min. On a normal basis one would have expected 48v @200 to be 164x2= 324min but it's instead a whopping 402min.
So that simply means that there is lower loss with 48v than it is with 24v. I hope that helps

Not really

That test was based on Lead acid batteries and not Lithium..

On 48V you draw less current, on 24V you draw more current..

Since you have lithium, efficiency is the same when you draw 100A from 100Ah and when you draw 10A from 100Ah. No difference..

mctfopt:
LOW POWER 2HP LG Air-conditioner. Pretty cool.

dont see anything low energy about the AC, 2HP IS ABOUT 1.5KW. DIVIDIN BY 240V, YOU GET 6.25AMPS. SO WHERE IS THE low energy?..abi am missing something