Going around in circles trying to figure out what I need power wise

[Layer Cake]

I'm getting myself very confused here trying to figure out what sized system/battery I need, using a battery calculator drawing 200watts on a 220volt system draws 0.91 amps, so would one of these be sufficient to run what I need for 2 hours?

Blue Nova Energy - Lithium Iron Phosphate 13V - 44Ah -570Wh Battery

What's in the Box: LiFePO4 Battery & Terminal screws Please find full spec sheet: https://bluenova.co.za/wp-content/uploads/2019/03/BN13V-44-570Wh.pdf BlueNova batteries cannot be used in a cranking application the discharge curve is C10 which means a slow discharge intended for stationery...

leroymerlin.co.za

I would also need an inverter and battery charger but I'm trying to keep the setup below R6000, any input would be appreciated and yes I've tried to read through loads of the threads but there seems to be a lot of incorrect information in them too, leading to more confusion.

Or am I safer with going with a plug and play setup like this gizzu

Takealot

 

[wingnut771]

I'm getting myself very confused here trying to figure out what sized system/battery I need, using a battery calculator drawing 200watts on a 220volt system draws 0.91 amps, so would one of these be sufficient to run what I need for 2 hours?

Blue Nova Energy - Lithium Iron Phosphate 13V - 44Ah -570Wh Battery

What's in the Box: LiFePO4 Battery & Terminal screws Please find full spec sheet: https://bluenova.co.za/wp-content/uploads/2019/03/BN13V-44-570Wh.pdf BlueNova batteries cannot be used in a cranking application the discharge curve is C10 which means a slow discharge intended for stationery...

leroymerlin.co.za

I would also need an inverter and battery charger but I'm trying to keep the setup below R6000, any input would be appreciated and yes I've tried to read through loads of the threads but there seems to be a lot of incorrect information in them too, leading to more confusion.

Or am I safer with going with a plug and play setup like this gizzu

Takealot

Here is a useful battery size calculator:

Battery size calculator

The battery size calculator calculates the battery size in ampere-hour (Ah).

www.jcalc.net

Lead acid you don't want to go below 50%
Lithium you don't want to go below 20% (although not a train smash if you do)

 

[Messugga]

I'm getting myself very confused here trying to figure out what sized system/battery I need, using a battery calculator drawing 200watts on a 220volt system draws 0.91 amps, so would one of these be sufficient to run what I need for 2 hours?

Blue Nova Energy - Lithium Iron Phosphate 13V - 44Ah -570Wh Battery

What's in the Box: LiFePO4 Battery & Terminal screws Please find full spec sheet: https://bluenova.co.za/wp-content/uploads/2019/03/BN13V-44-570Wh.pdf BlueNova batteries cannot be used in a cranking application the discharge curve is C10 which means a slow discharge intended for stationery...

leroymerlin.co.za

I would also need an inverter and battery charger but I'm trying to keep the setup below R6000, any input would be appreciated and yes I've tried to read through loads of the threads but there seems to be a lot of incorrect information in them too, leading to more confusion.

Or am I safer with going with a plug and play setup like this gizzu

Takealot

No. 200W x 4h = 800Wh. That's a 570Wh battery. 570Wh is less than 800Wh. That is ignoring things like not entirely discharging the battery and such.

 

[RedViking]

Mecer 2400VA Inverter (Community Support)

This Thread is for the Mecer Inverter only. My personal opinion on the unit: Seeing that there are lots of question and in lots if threads, here is my review/input on the Mecer Inverter. Instead of reposting I'll just reference here. I'll add more info soon. This should give you an idea what...

mybroadband.co.za

 

[Sinbad]

I'm getting myself very confused here trying to figure out what sized system/battery I need, using a battery calculator drawing 200watts on a 220volt system draws 0.91 amps, so would one of these be sufficient to run what I need for 2 hours?

Blue Nova Energy - Lithium Iron Phosphate 13V - 44Ah -570Wh Battery

What's in the Box: LiFePO4 Battery & Terminal screws Please find full spec sheet: https://bluenova.co.za/wp-content/uploads/2019/03/BN13V-44-570Wh.pdf BlueNova batteries cannot be used in a cranking application the discharge curve is C10 which means a slow discharge intended for stationery...

leroymerlin.co.za

I would also need an inverter and battery charger but I'm trying to keep the setup below R6000, any input would be appreciated and yes I've tried to read through loads of the threads but there seems to be a lot of incorrect information in them too, leading to more confusion.

Or am I safer with going with a plug and play setup like this gizzu

Takealot

200w at 220v is less than an amp, yes.
But not on the battery side.
200w from a 12v battery is 17 amps or so.

 

[HowTo]

P=V*I here is the formula
P= Power
V=Voltage
I= Current
Then under AC you need to bring in cos phi but for a rough calculation you can leave this out of equation.

 

[Layer Cake]

200w at 220v is less than an amp, yes.
But not on the battery side.
200w from a 12v battery is 17 amps or so.

Ah this is where I was going wrong.

 

[Layer Cake]

Seems I will need to fork out more than I was hoping for, thanks everyone

 

[Jet-Fighter7700]

Seems I will need to fork out more than I was hoping for, thanks everyone

blame eskom for leaving a problem to become worse.

 

[Layer Cake]

blame eskom for leaving a problem to become worse.

It's a shame the price tiers are exponentially higher for each level up

 

[Ivork]

No. 200W x 4h = 800Wh. That's a 570Wh battery. 570Wh is less than 800Wh. That is ignoring things like not entirely discharging the battery and such.

OP said 2hrs in which case he would make it.

 

[deweyzeph]

You're going to need at least 2 x 12V 100AH batteries connected in series to create a 24V battery, preferably lithium-ion batteries.

 

[Messugga]

OP said 2hrs in which case he would make it.

Could've sworn it read 4 hours. Early morning dislexia! You're absolutely right of course.

 

[Layer Cake]

So just to simplify things for myself what plug and play type system would work for me, I'd rather spend the extra money on a setup with a lithium battery.

 

[wingnut771]

You're going to need at least 2 x 12V 100AH batteries connected in series to create a 24V battery, preferably lithium-ion batteries.

Or go with 12V inverter and only worry about 1 battery with the option of adding another.