₦airaland Forum

fuckboys:
fan noise not loud, but always on 24/7. Has a dual fan.

Fan only gets loud during sunny hours when it’s firing juice into your battery and when it’s powering loads 40% and above its rated capacity.

Okay thanks. I prefer inverters that fans start on certain loads and turn off when the load is less. I appreciate your response.🙏

dollarnaira:
If you are comfortable with the noise.
I hate noise

I hate them too. Will replacing the fans to brushless ones make it quieter or what??

ksmart027:
I hate them too. Will replacing the fans to brushless ones make it quieter or what??

Yes
Most fans installed are cheap inferior ones.

dollarnaira:
Yes
Most fans installed are cheap inferior ones.

Have you experienced firman inverter? One of their selling point is quiet nature.

dollarnaira:
This will result to less demand of 18650.
But the energy density of lithium ion is huge. Almost all my builds were freely made and research purposes.

yeah, although if I'm chanced, I'll likely still build some, because I like the getting my hands busy.

officialfestus:
yeah, although if I'm chanced, I'll likely still build some, because I like the getting my hands busy.

Bank cards are now available for AliExpress now.

dollarnaira:
If you are comfortable with the noise.
I hate noise

I have it on my balcony, so the noise isn’t an issue to me so long it’s not inside the house anywhere close to my room.

Machiny:
Have you experienced firman inverter? One of their selling point is quiet nature.

Please do you have their specs?

dollarnaira:
Yes
Most fans installed are cheap inferior ones.

🙏🙏

ksmart027:
Please do you have their specs?

no it's bread I have it's spec leaflet. But this is firman spec of 3.5 transformerless

saint2ace:
Welcome to my reality, agreed that the power density is insane but the stress as well as the materials needed if one is to do it properly is on another level, with lifepo4 one only needs to add busbars and slap on a bms and u're done.

All in less than an hour.

And with the drastic reduction in prices of lifepo4 it's actually a no-brainer to move to the chemistry.

However, for small compact systems, nothing beats lithium ion's energy density if you have the time.

The time taken and stress one have to go through before building it is the only downside for me, but I love the feeling it gives when neatly built.

dollarnaira:
Thanks.
Yes, energy need is the koko especially when all appliances need to be turned on at once. If done in bits 12v still works great with sense.

If at I will hit 48v it will be 314ah i.e approximately 2m for cells only.

For now, I will still do another 12v at 314ah --- 4kwh as an upgrade but with 6000w Satchet inverter. All die na die .

charging time is the only downside I've with 12v systems.

Obnoxious2001:
I don't think it will alter the amps

It does, once used a buck convert(20A) to step down a charger of output (14.4v 20A) to 12.6v, hoping It wasn't going to alter the amps, but unfortunately the highest amps I could pull using the buck convert was 10Amps.

dollarnaira:
Bank cards are now available for AliExpress now.

really?
I've been using a virtual usd card to shop there.

officialfestus:
It does, once used a buck convert(20A) to step down a charger of output (14.4v 20A) to 12.6v, hoping It wasn't going to alter the amps, but unfortunately the highest amps I could pull using the buck convert was 10Amps.

Oh.

officialfestus:
charging time is the only downside I've with 12v systems.

I don't like fast charging..
In a 12v system you don't eat more than necessary. What I noticed about usage of energy is that most of us waste it a lot. However, when they travel abroad they manage and do mathematics with energy because it is expensive.

By the way , nothing sweet reach 48v system it is grid to me.

tetralogyfallot:
it's really a challenge but I still feel it's cheaper to build than to buy branded batteries, though it may also depnds on where n how u source your materials. Let's use 10Kwh battery as a case study. With your less than 1.5m u can build a very good quality 10kWh lithium pack, where can u get a branded battery for even 1.8m? The price of my good quality capacity tested 3.2Ah LG cells hovers around 1k downward depending on the quantity. So let's do the maths. U need just around 910pcs of cells, thats if u take the cells capacity as 3Ah to achieve 10Kwh which amounts to 910k, don't compromise on good quality bms, use a very good quality smart bms like JK, which price ranges between 150k to 200k depending on the capacity sha, some even come with upto 2A active balancers. Active balancer is a very important component in battery building i wonder why some battery builders ignore balancers, 5A active balancer is around 25k or even less depending on where u get them. The other consumables like nickel strips, voltage display meter, terminals and good casing may not even cost upto 100k. Totaling everything results to something less than 1.3m where u wan see good branded 10kWh lithium battery for that kain amount?

Nice analysis. How many cycles would you put a used cell at? Give or take.

Machiny:
no it's bread I have it's spec leaflet. But this is firman spec of 3.5 transformerless

Thanks bro, the spec makes sense. Do you know how much it's going for. I'm also considering srne 3.3kva

ksmart027:
Thanks bro, the spec makes sense. Do you know how much it's going for. I'm also considering srne 3.3kva

their sales person said 345k. Does it have high max pv? And the fan? Why am concerned Aby the fan is the inverter will be close to my room

Trippledots:
Nice analysis. How many cycles would you put a used cell at? Give or take.

theoretically, lithium ion batteries charge and discharge is said to be around 1000 cycles. I've been offgrid with my lithium ion batteries for over 5 years and seems it even getting more stronger.

Machiny:
their sales person said 345k. Does it have high max pv? And the fan? Why am concerned Aby the fan is the inverter will be close to my room

I haven't use any of those boss. I just bought the bread 3.5kva this morning. Just make your research and find the one suitable for you.

ksmart027:
I haven't use any of those boss. I just bought the bread 3.5kva this morning. Just make your research and find the one suitable for you.

how much did you buy?

Machiny:
how much did you buy?

320k

ksmart027:
320k

nice

ksmart027:
320k

is it lithium ion compatible(7s)?
I'm asking because I saw 27vdc output on the specifications.

officialfestus:
is it lithium ion compatible(7s)?
I'm asking because I saw 27vdc output on the specifications.

I don't know if it's compatible with 7s, i don migrate to lifepo4. But i believe the settings are editable.

Available brand new

officialfestus:
is it lithium ion compatible(7s)?
I'm asking because I saw 27vdc output on the specifications.

most 24v inverters are compatible with li-ion 7s battery configuration including 14s for 48v inverters, it is only 3s configs that have small wahala

ksmart027:
I don't know if it's compatible with 7s, i don migrate to lifepo4. But i believe the settings are editable.

ok

Penuelseun:
most 24v inverters are compatible with li-ion 7s battery configuration including 14s for 48v inverters, it is only 3s configs that have small wahala

noted, thank you. 😊

ksmart027:
Available brand new

Why are you selling?

How much?

Trippledots:
Why are you selling?

How much?

I upgraded to hybrid, price is 80k brand new, never been used.