₦airaland Forum

dollarnaira:
Probably cylindrical LifePO4.
Feel the wraps to confirm.
Assuming the above was correct, some cells are dead and would need reconfiguration, proper charging and balancing.

TechGeek777:
Nawa, sorry for your loss bro, next time your choice of people to patronize online should be those with known names to protect.

We have many sellers & installers here, if the deal goes south they have much to loss than cheating you.

I keep saying that one satisfied customer is 10 customers awaiting you.

This IVCP is a very old model of Felicity inverter.

I believe the sequence of felicity inverter models are (IVCP -> IVCM -> IVMP -> IVEM).

Was they DC SPD installed ?

Do you have earthing system?

TechGeek777:
What's the brand and model of your inverter?

Peterlove11:
Sorry to ask, what kind of battery?.....if it's lead acid, slow charge them(trickle charge) for days, hopefully they might recover and beat sulphation.

Oshomo12:
Now I understand your apprehension with valto!!

Oshomo12:
Sorry to hear about the inverter. Was it connected to the grid? I keep saying this, and will say it again: if you don't have resources to install/correct the earthing system in our house, please don't charge/connect your inverter via grid. If you must charge via grid, you MUST be there to monitor it. Once you sense rain or a storm coming, DISCONNECT YOUR SYSTEM COMPLETELY FROM THE GRID.

kristien4:
But Would installing a DC surge have really saved the inverter?? I'm just curious.. and secondly, was your inverter earthed? Did the frying occur during the day or at night?

swagifted:
how long ago was it installed?

brightk:
na wa.. anyway anyis friable :

Make i use dat one console myself. Was there any protection available 4 ur setup

brightk:
sorry abt dat.... were u using a hybrid or tf based felecity inv?

Oshomo12:
Oh, that's ok. He will definitely deliver.

Dam5reey:
Exactly my guess, You are only using 3 panels.. all these while..
A PWM controller provides your batteries with the maximum available current, wasting excess Voltage.
So you connected 60V 24.6A to a PWM. Even in full Sun, it will supply your batteries with 28V at 24.6A. excess voltages or 3 extra panels wasted.

But if you do it all in Parallel. You will have 30.8V at 49.2A input and your batteries will charge at 28V at 49.2A.
Here you are pushing too much current, you need High Guage Wires, which is expensive!

With MPPT, you can maintain the 2 in series and 3 set in parallel.
With MPPT, you are receiving the same 60V 24.6A.. your batteries will receive 28V at about 49.2A.. because MPPT will converter excess Voltage to current.


2. When you say MPPTs are expensive.. and you are only getting 840 watts from a possible 1680w..?
You can use PWM. But connect it properly and size the cable properly too.

When I was using a PWM Controller on 24V system, I purposely Bought 280W panels with 30V VMP... and a higher current.
Because I understand how to optimize each Device wether PWM or MPPT. it's all about understanding.

3. Yes, 30.8VMP is the sweet spot for 24V if you are using PWM.

Dam5reey:
Exactly my guess, You are only using 3 panels.. all these while..
A PWM controller provides your batteries with the maximum available current, wasting excess Voltage.
So you connected 60V 24.6A to a PWM. Even in full Sun, it will supply your batteries with 28V at 24.6A. excess voltages or 3 extra panels wasted.

But if you do it all in Parallel. You will have 30.8V at 49.2A input and your batteries will charge at 28V at 49.2A.
Here you are pushing too much current, you need High Guage Wires, which is expensive!

With MPPT, you can maintain the 2 in series and 3 set in parallel.
With MPPT, you are receiving the same 60V 24.6A.. your batteries will receive 28V at about 49.2A.. because MPPT will converter excess Voltage to current.


2. When you say MPPTs are expensive.. and you are only getting 840 watts from a possible 1680w..?
You can use PWM. But connect it properly and size the cable properly too.

Dam5reey:
The Answer is simple Get an MPPT controller for the New Set of 300w panels..

Your Inbuild Charge controller is only 50A and PWM. interesting to know how you connected the 6, 280w panels.. the best efficiency is to connect all 6 in Parallel. but I doubt that's the case.

If possible, Get 2 external controllers, 1 for the 280W set and a second for the 300W set.
The inbuilt CC is not efficient enough..

Dam5reey:
Incomplete data..
Provide the Panel data as well as the inbuilt CC data..

Oshomo12:
Oh, that's ok. He will definitely deliver.

Oshomo12:
It depends on your location, from my side, the driver couldn't move on time due to the traffic coming down.

Relax your mind, you will enjoy it.

Oshomo12:
That's nice, I paid him full and never bothered to call him. He was just disturbing me with messages nii

Uniquewise:
It's all good then👍

Uniquewise:
Hello

Saw a clean Thermocool 519 litres inverter freezer at a really reasonable price.

DM if you're interested

08059054222

Oshomo12:
He dares not f....k. up!!
The cells I got from him are well balanced too, no funny behaviour so far! The people I got it for used it to 2% at a time, but charged it up to 100% with 0.002 deviation at the end.

Oshomo12:
He dares not f....k. up!!
The cells I got from him are well balanced too, no funny behaviour so far! The people I got it for used it to 2% at a time, but charged it up to 100% with 0.002 deviation at the end.

Oshomo12:
Valto's cells capacity checks out. I have bought and tested his cells to full capacity.

TechGeek777:
Can you please mention the guy's name?

Obnoxious2001:
If you want to build yourself valto is your guy.

If you want ready made byd , victron, hauewii etc @jonescosmos come drop big names .

He no put budget

Uniquewise:
Hello

If you can afford it, go for Thermocool 519 litre Inverter freezer. Quite pricey though, but it will give you peace of mind.

I use the 219 litres version in my house, and at @120 watts, I use it with my solar, and no issues at all. Very Very efficient.

Hope this is useful.