2000 watt inverter

Depends on the batteries it is connected to I guess?
 
100ah / 2 ( 50% dod) = 50ah
50ah x 12v = 600 watt hours
So 150watt load for 4 hours
300w 2 hours
600w 1 hour
Etc
 
I have a 1000va (600watt), I have the following connected:
LG 55” TV, Sound Bar, Subwoofer, Explora, Apple TV, Synology NAS, Yealink Base station, ONT, Router/WiFi, Switch, power monitor, Smart Hub.

Inverter say using 110-250watt (TV on/off).

I have one 105Ah connected. The 2 hour LS take 15-25% from battery, and get charged back full in 15min (when we didn’t use the TV), and 45min (on full load).

Don’t have conventional PC, hope someone can gove more details
 
So noob question whats the reason for a 1000va vs 2000va inverter?
So basically you just need to add bigger / more batteries.
I do not understand the difference between va inverter vs wattage to equipment clearly
 
marine1 said:
So the 1000 va is enough but the battery isnt
Click to expand...

Yep, depending on the power factor your inverter is something like 750-1000 watts. But your battery bank can only offer 600 watts at 50% dod, so you could use the maximum capacity of the inverter but only for like 45 minutes or something, or use a lower load for a longer time. Nb these numbers are rough estimates
 
I think, forget about the VA rating for now, a 1000va is normally 600watt and a 2000va is 1200watt.

This rating (600 or 1200watt) is the max power that the inverter can provide. So 6x 100watt globes or 4x 50” LCD TV’s.

Batteries are rated in Amp hour, you get mainly two types of batteries, Lead-Acid or Lithium-Ion, there is a huge price difference, but the main reason you would go for Lithium-Ion is you can completley drain the battery, you can’t do that with Lead-Acid.

For your inverter I would get two 105Ah batteries, and connect them in parallel (seems you have a 12volt system as it work with 1 battery), then you dubble the time the inverter can provide power to your setup, you can even add more in parallel if you need more time, but remember the batteries needs charging, it can be a slow story with 4 batteries on that inverter.

Get yourself a tong tester or one of these,
IMG_5944.JPG
then you can measure per device what it consume (min/max and avg), then add all the devices up and make sure the max readings totaled isn’t exceeding 1200.

I used my single battery solution now for the last 5 years and it works, keep my stuff connected for 4hours with my connected load.
 
What are the largest aH batteries one can put into these RCT UPS's. I have 3 of them... 2x 1000Va(600W) and one 2000VA (1200W).

From the specs i see even the 2000Va has 2 x 7aH batteries installed (I thought it had 9aH), and i havnt physically checked it. What's the biggest aH capacity battery you can buy with the physical dimensions of these 7aH bats?

Thx
 
Fjorko said:
What are the largest aH batteries one can put into these RCT UPS's. I have 3 of them... 2x 1000Va(600W) and one 2000VA (1200W).

From the specs i see even the 2000Va has 2 x 7aH batteries installed (I thought it had 9aH), and i havnt physically checked it. What's the biggest aH capacity battery you can buy with the physical dimensions of these 7aH bats?

Thx
Click to expand...

Can you see in the spec how much the battery charge rate is?

Can you give a model no?
 
gfmalan said:
I think, forget about the VA rating for now, a 1000va is normally 600watt and a 2000va is 1200watt.

This rating (600 or 1200watt) is the max power that the inverter can provide. So 6x 100watt globes or 4x 50” LCD TV’s.

Batteries are rated in Amp hour, you get mainly two types of batteries, Lead-Acid or Lithium-Ion, there is a huge price difference, but the main reason you would go for Lithium-Ion is you can completley drain the battery, you can’t do that with Lead-Acid.

For your inverter I would get two 105Ah batteries, and connect them in parallel (seems you have a 12volt system as it work with 1 battery), then you dubble the time the inverter can provide power to your setup, you can even add more in parallel if you need more time, but remember the batteries needs charging, it can be a slow story with 4 batteries on that inverter.

Get yourself a tong tester or one of these,
View attachment 636204
then you can measure per device what it consume (min/max and avg), then add all the devices up and make sure the max readings totaled isn’t exceeding 1200.

I used my single battery solution now for the last 5 years and it works, keep my stuff connected for 4hours with my connected load.
Click to expand...

If I have a 24v setup already with 2 batteries in series but I need to add more batteries. Do I have to add in multiples of 2 or can I just add a third in parallel?
 
tRoN said:
If I have a 24v setup already with 2 batteries in series but I need to add more batteries. Do I have to add in multiples of 2 or can I just add a third in parallel?
Click to expand...
It has to be in multiples of 2 since you have to connect another 24V in parallel.
 
tRoN said:
If I have a 24v setup already with 2 batteries in series but I need to add more batteries. Do I have to add in multiples of 2 or can I just add a third in parallel?
Click to expand...

Multiples of 2, each battery is 12v, connecting two in serie give you 24v, you need to add 24v (serie set 2x 12v) in parallel.

You can always go for 2x 200Ah batteries as well
 
gfmalan said:
Multiples of 2, each battery is 12v, connecting two in serie give you 24v, you need to add 24v (serie set 2x 12v) in parallel.

You can always go for 2x 200Ah batteries as well
Click to expand...

Ok thanks

Is there an advantage of having a 24v system with 2 batteries in series rather than 12v with 2 batteries in parallel?
 
There are few advantages, the first that come to mind is better efficiency for the inverter to convert to 240v.

Larger usable operating voltage window - DOD
 
tRoN said:
Ok thanks

Is there an advantage of having a 24v system with 2 batteries in series rather than 12v with 2 batteries in parallel?
Click to expand...
Working with 24V reduces the current needed on the DC side to supply the power needed. Suppose you need your power needs is 1000W, at 12V you are going to need 83amps to cater for the 1000w load, while at 24V it will be half the current. Working at lower current is safer.
 
gfmalan said:
Can you see in the spec how much the battery charge rate is?

Can you give a model no?
Click to expand...

I bought it at Kloppers - it seems the look of these are a bit different than the older models. I have seen 3 different images of the same model RCT-2000VAS / RCT-1000VAS

Only thing i can see with regards to the charge rate is that it it supposed to charge to 90% within 4-6 hours ( assume from 0 ).
 
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