Sorotec

[Mahoganyhook]

How many 12 volt batteries do I need to power a Sorotec 3000 watt inverter?

 

[leon.davibe]

If it is

REVO II 3K-24

2

Most 3000 watts tend to be 24v, know there are exceptions ie growatt has a 48v system

Gotta check the sticker on the device

If you cant find a model number /documentation


you can connect one battery try and switch on if no luck series 2 and try again

 

[Mahoganyhook]

Mine is 12 v x2 in series= 24 volt.
Problem is that the inverter dies 6 minutes after loadshedding

Have I too few batteries for the Sorotec 3000 watt inverter?
I am running a low amp fridge, router, TV and LED lights only
Batteries are Vestwood Lithium 12volt 100 amph
One battery shows 100% SOC the other is only 4%

 

[leon.davibe]

this is normal behaviour for imbalanced batteries


charge the 4% battery full on it's own

and series them when both are 100% charged , and your problem will be solved

naturally connecting them parallel and charge to 14.6 (top balance ) is the best way

can also buy a balancer and connect it from time to time when you see that when fully charged both isn't 100% charged
can also just connect active balancer it will balance them for you over time ie if your load is less than the active balancer you would be able to use the inverter without switching off while it is sorting the balance for you
what you want to see is all cells at 3.6-3.65v on both batteries (slight differences is ok but no runaway cells with radical difference) just before the inverter stops charging

or

edit do you have a car/other charger ie 12v capable of going to 14.6v

if you don't you can take it to a battery shop and ask them to charge it to 14.6v (full) for you

or budget move is to add a 12v load to the 100% one and do a slow charge ie charge amps has to be less than the 12v load ie adding a 12v car head light bulb to it would pull about 4.29A
if you charge with 4 amp
the empty one will fill up while the bulb prevents the full one from stopping the charging from inverter
this would take many hours naturally adding 2 bulbs and doubling the charge current halves the time taken