₦airaland Forum

bigrovar:
Which is true but still very very expensive, an expensive experiment which often time ends up in failure.. You know why? Lithium is very very complicated and has many component all of which have to work just right. Lithium has very little margin of error in setup.. You have to get the right cell from the right cell maker, you have to ensure the cells are well balanced, you have to get the right BMS, right charger sometimes the right inverter.. One mistake and poof all goes up in smoke.. and they often do more often than not you just don't hear that part in the songs

Many on here have dipped their hands in lithium and gotten burned badly and suffer their loses in silence.. You will hear them throwing specs like 3000 cycles at 80% dod lol.. what u don't here is the case where the bank (if you are lucky) just stop working after like a year.. They just stop..

Lithium is the future no doubt.. Just waiting for the dust to settle.. maybe when reputable chinese solar maker like episolar start doing lithium then you can take a cue that it is time to give it a look. for now I will advise wait for the second iteration before you look that way

ceaser:
I think I get 7 hours, in practice. And the batteries have been in use for a while of course.

Deluxe8000:
How true is this statement?
A new inverter sealed lead acid battery of 200ah will carry a constant load of 12amps(140w) for 10hours at 60%dod.

BetaTechnicians:
It is simple, the breaker should be sized for just the battery - CC connection since that's the part we're worried about, once that trips then it switches of the +ve PV input too, and note that the +ve PV input would still go into another breaker with it's -ve input before getting into the CC. Can you visualize this?

tchijioke:
Just get the appropriate circuit breakers for the PV side as well as the battery side...then hook them up together to create the dual pole breaker as in the pix attached.

These are two separate breakers hooked up as one.

latestmodel:
I feel your price is high.
Cos Bumper, Head lights and good paint jobs don't come cheap. U could do 1.9 so the buyer can have enough bar to fix this.
LE is basic. No hype

ceaser:
I think I will do some controlled trials to determine if 13.8v gives as much sweet spot as the 14.2v I presently use.
.

terrymason:
That's great!
But the double pole breaker will have same amps but the pv and batteries are of different amps (Wire rating), don't you think rhe purpose of the breaker has be defeated?

Note: Breakers are for cable protection (Panel and battery cables most times are not the same)

tchijioke:
Use a dual pole circuit breaker...connect it such that the pv+ve cable goes through one pole to the cc...while the cc to battery +ve cable goes through the other pole to the battery. So when it trips, both poles trips with your charge controller properly shutting down.

ceaser:
It can but adequate charging largely depends upon if your PWM CC setting is user customizable or not.

Let's take 12v LFP as example, from experience. The nominal voltage is 12.8v and can get charged to as much as 14.2v. At sustained 14.2v charging, the cells are exposed to optimal juice and backup is evidently prolonged. You also get some good backup if charging is sustained at 13.8v. However any voltage less is just topping off the cells to around an unsaturating 95% (the 95% is my assumption pls, not a fact)

Now to your PWM charge controller. PWM and indeed MPPT controllers without settings for Lithium charging only go thru the 3 stage charging which culminates at around 13.3v or 13.6v. The boost stage that is above 14v is only sustained for about an hour or two and then things return to sub-14volt.

12v LFP requires sustained super-14volt charging and that is the parameters that "lithium settings" of CC that have it ensure. On the flip side, if your PWM CC has user customizable settings even if it does not have lithium settings, you can edit the "solar off" cut-off voltage to 14.3v.

e90:
Good day sir, pls i need your advice. I have a Toyota matrix 08 model. The Engine overheat at every distance i covered. The temperature level of the car goes to high. I no longer use AC and the over heating issue still persist. I always have to refill the radiator at every journey. I have change the radiator and the overheating issue still continue. Pls what can i do. Thanks

Emmyjean:
Hello Guru,
I need your advice concerning these two choice of tokumbo toyota cars,
Camry 08/09xle(v6 engine) and Avalon 08/09xls(v6).
Which of them will you recommend me to go for.
Thanks.

anyibig:
Hi guys, please I really need your advice. I have the option of buying a Nigerian used lexus rx330 2005 or hyundai sonata 2013 from USA. Please which do you think is more reliable and durable?? I really don't want a car that will give me headache in near future. Also fuel efficient is considered. Thanks

Virgohills:
I am a dealer this is fabric le. If it was XLE that ur 2.2 price will fly

oladipuposadeeq:
which state sir?

samuelson06:
How do you intend to manage the situation on ground and how much do you charge?

essegis:
How does someone get this ICC software?

Nyxx123:
Sorry to drift a bit, pls economic forecaster, who knows the implications of this partial lockdown (from 4th may) on dollar, is it a good time to sell or still wait it out?

hancock:
Look at the screen shot. Grid watt and PV watt is 0

hancock:
I think its the same 75w consumption under load
Im looking at a screen shot I took some time ago
on the inverter side, the load is 414w while on the battery side the BMS gives a more accurate reading of 488w which is a difference of 74w