Inverter advice for Lithium battery

[TheChamp]

Link?

RCT Axpert VM1 1K12 1kVA 1kW 12V Hybrid Inverter

Features: Cold start function. Pure sine wave inverter. Auto restart while AC is recovering. Built-in MPPT solar charge controller. Overload and short circuit protection. Compatible to mains voltage or generator power. Selectable charging current based on applications. Configurable AC/Solar...

www.sustainable.co.za

Five Star 1KVA PWM 12V Solar Hybrid Inverter |

RCT Axpert VM 1kVA 1kW 12VDC Inverter

RCT Axpert VM 1kVA 1kW 12VDC Inverter and other RCT products available at FirstShop South-Africa. Price, availability and reviews for RCT AXPERT VM 1K-12V

www.firstshop.co.za

 

[Ivork]

Thanks Ivork

Dont all Inverters have noisy fans or am I mistaken ?

Apologies I am a novice with this stuff

Was it easy to set up the inverter - Connecting battery and setting the charge voltage?

Some are more noisy than others.
And this one fans go on and off every now and then even when fully charged.

Scroll down this post - the guy blames the heat sensor & chopped up his box.

RCT Axpert Inverter never stops charging - fan constantly on

Hi all, I have a RCT-AXVP1-1K-5K Inverter, a 12V unit with 2x batteries in parallel. When the unit is not connected to the mains, it is quiet. Once I connect it to a wall outlet, the fans ramps up, and the unit starts charging the battery. The problem is that the battery never stops charging. Aft...

powerforum.co.za

Battery charge current and bulk & float voltages are all easy adjustable from the front panel.
You can set what voltage you want it cut off at. I set mine mine to 12v since i didn't want my LiFePo4 going completely to 0% (BMS would probably cut the battery off at a safe state of discharge anyway but just playing safe.)

 

[hyperian]

At the risk of hijacking the thread, I've also settled on a 1kva Axpert with a 12v 200ah Hubble lithium battery. Do I need to use a circuit breaker between the inverter and battery? If so, would it be a 100a DC single pole circuit breaker?

 

[wingnut771]

At the risk of hijacking the thread, I've also settled on a 1kva Axpert with a 12v 200ah Hubble lithium battery. Do I need to use a circuit breaker between the inverter and battery? If so, would it be a 100a DC single pole circuit breaker?

1000W/12V=83A
100A DC breaker is perfect, seeing the max the battery BMS can handle is 100A. I would also add a fuse. I would go with 120A cable and 150A fuse.
Here are some charts for fuses and cabling:

 

[Gava]

Hi everyone

Needing some advice on choosing the correct inverter for my Securi-Prod 100Ah lithium battery.

Context:

Replaced the lead acid battery in my Ellies 720W/1200VA Inverter trolley this December.
I was reassured by the team at GW that the drop in Securi-Prod 100Ah lithium battery will work with my Ellies inverter provided I keep the charge settings at 10amp.
All went well for about 4 weeks until this Sunday.
Loadshedding started and nothing from my inverter. It was dead, no lcd screen, no fan, no power

I took the inverter to Ellies in Woodmead and they basically dismissed me saying the inverter cannot manage lithium batteries. Apparently I was misinformed by the technical guys at GW.

So I now have a brand new lithium battery and no inverter

I would like to get it right this time.

Basically my requirements are basic - I need to power a TV, modem, laptop, 2 lamps and 2 desktop screens during Loadshedding

Any advice on which Inverter I should buy that will be compatible with my Lithium battery

I’ve got the same problem. Mecer 2400v inverter. Swopped to lithium batteries. Some component in the inverter blew. The guys who supplied the batteries assured me it would work with some settings changed. Got an electrician who works with inverters to do the changes.
Muster confirmed that the batteries aren’t compatible and not forthcoming as to why resulting in me sitting with new batteries non-refundable because I went on the salesman word ‘ if it doesn’t work we’ll give full refund’. So, no report from Mustek = NO Refund to me and I’m stuffed.
Any suggestions as to what I can do?

 

[wingnut771]

I’ve got the same problem. Mecer 2400v inverter. Swopped to lithium batteries. Some component in the inverter blew. The guys who supplied the batteries assured me it would work with some settings changed. Got an electrician who works with inverters to do the changes.
Muster confirmed that the batteries aren’t compatible and not forthcoming as to why resulting in me sitting with new batteries non-refundable because I went on the salesman word ‘ if it doesn’t work we’ll give full refund’. So, no report from Mustek = NO Refund to me and I’m stuffed.
Any suggestions as to what I can do?

What changes were made? Pic of inverter? Pic of batteries?