Inverter and batteries

howardb

howardb

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joker08 said:
Oh that's expensive.
Drilled holes in the plastic box. I think I am good for now.

Inverter's fan making noise. Very annoying.
Click to expand...
They do that when charging or the power goes off and are running in inverter mode. There is one model, can't remember which, where the fan is always on. Check the specs of your model.
 
Stokstert

Stokstert

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howardb said:
They do that when charging or the power goes off and are running in inverter mode. There is one model, can't remember which, where the fan is always on. Check the specs of your model.
Click to expand...

This is the model which have fans coming on even when the batteries are fully charged.

www.geewiz.co.za

Axpert Type Pure Sine 3000VA Inverter + 2x 100Ah Battery (8 HOUR BATTERY LIFE) KIT - 3000W (50A SOLAR)

GeeWiz Axpert Type 3000VA (3000W) PURE Sine Wave Inverter - PV18-3K (60A MPPT Solar Controller) Includes 2x 100Ah Battery + Steel Cabinet + Wheels All cabling and connectors included Unit Dimensions: 62cm(H) x 55cm(W) x 55cm(L) Weight: 75kg PLEASE NOTE: The 8-hour battery life is based on a...
www.geewiz.co.za www.geewiz.co.za

This was Geewiz's answer on the question of which model has the fan running when batteries are full.

Hi


The fans are only applicable to the PS 3KVA KIT.


The MKS3K fans only come on when needed.



Thanks

Jannie

Geewiz
 
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howardb

howardb

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joker08 said:
U are right, the fan stopped and there is no noise now.
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I find that if you have 4 hrs loadshedding, they take up to the same 4 hrs to charge (on a 2x 102ah battery system).
There are some models that take slightly less at 2hrs, whilst others can take up to 6hrs to charge.
I suppose it also depends on the inverters charge rate though, and whether you can change it ;)
 
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Steamy Tom

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J

joker08

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Steamy Tom said:
a friend of mine uses it to power his router, said it works well
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My router is 9v and modem 12v.
Now even though router is 9v it runs off a powerbank( 5v ) without any issues.

My question is, if I buy this mini ups, how do I connect it ?
12v out to modem, use a splitter and then a step-down module to the router
Or
12v to the modem and Just connect the router to the USB on this?

I am just not sure if it has a bypass on the USB out. I dont want to ruin its batteries.
 
Dairyfarmer

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joker08 said:
My router is 9v and modem 12v.
Now even though router is 9v it runs off a powerbank( 5v ) without any issues.

My question is, if I buy this mini ups, how do I connect it ?
12v out to modem, use a splitter and then a step-down module to the router
Or
12v to the modem and Just connect the router to the USB on this?

I am just not sure if it has a bypass on the USB out. I dont want to ruin its batteries.
Click to expand...
Get a qualified person to set it up for you. You are going to damage something or end up with a fire.
 
howardb

howardb

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joker08 said:
My router is 9v and modem 12v.
Now even though router is 9v it runs off a powerbank( 5v ) without any issues.

My question is, if I buy this mini ups, how do I connect it ?
12v out to modem, use a splitter and then a step-down module to the router
Or
12v to the modem and Just connect the router to the USB on this?

I am just not sure if it has a bypass on the USB out. I dont want to ruin its batteries.
Click to expand...
I bought 2 similar mini ups units, but both had variable output voltage selectors (4.5v, 6v, 9v, 12v). Router was 9v so unit 1 set to 9v. Fiber modem was 12v so unit 2 set to 12v.

I would not use a step-down for the 9v, not practical and not safe. Rather buy the correct unit.
 
TheChamp

TheChamp

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joker08 said:
My router is 9v and modem 12v.
Now even though router is 9v it runs off a powerbank( 5v ) without any issues.

My question is, if I buy this mini ups, how do I connect it ?
12v out to modem, use a splitter and then a step-down module to the router
Or
12v to the modem and Just connect the router to the USB on this?

I am just not sure if it has a bypass on the USB out. I dont want to ruin its batteries.
Click to expand...
The first part would work.
 
TheChamp

TheChamp

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howardb said:
I bought 2 similar mini ups units, but both had variable output voltage selectors (4.5v, 6v, 9v, 12v). Router was 9v so unit 1 set to 9v. Fiber modem was 12v so unit 2 set to 12v.

I would not use a step-down for the 9v, not practical and not safe. Rather buy the correct unit.
Click to expand...
What's not safe about it? It's like saying your car phone is unsafe because it steps down 12V to 5V.
 
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S

Steamy Tom

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joker08 said:
My router is 9v and modem 12v.
Now even though router is 9v it runs off a powerbank( 5v ) without any issues.

My question is, if I buy this mini ups, how do I connect it ?
12v out to modem, use a splitter and then a step-down module to the router
Or
12v to the modem and Just connect the router to the USB on this?

I am just not sure if it has a bypass on the USB out. I dont want to ruin its batteries.
Click to expand...

12V out with a splitter and a buck converter.
 
G

Gtx Gaming

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Is this fine to start my grid tied adventure? Going for 5000watt one it cost R10500. Want to connect everything expect the geyser. Want to use same inverter when I go off the grid.
e49d58ff9ece477202eccf5ff1f13112.jpg
 
RedViking

RedViking

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Feb 23, 2012
Messages
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Gtx Gaming said:
Is this fine to start my grid tied adventure? Going for 5000watt one it cost R10500. Want to connect everything expect the geyser. Want to use same inverter when I go off the grid.
e49d58ff9ece477202eccf5ff1f13112.jpg
Click to expand...
Think @Dairyfarmer has a similar setup

Inverter and batteries

I know I am a bit slow to understand. But how do I calculate the approximate hours I would get. Lets say 2x105ah batteries, 24V, 300W draw. I like the Display, you can see at what percentage your batteries are at, sweet. Honestly cant give you a simple formula to work at coz formulas are never...
mybroadband.co.za
 
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Steamy Tom

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Gtx Gaming said:
Is this fine to start my grid tied adventure? Going for 5000watt one it cost R10500. Want to connect everything expect the geyser. Want to use same inverter when I go off the grid.
e49d58ff9ece477202eccf5ff1f13112.jpg
Click to expand...

looks like it is a china mall type item?
 
S

Steamy Tom

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Gtx Gaming said:
Local shop not Chinese, but yeah they sell ecco etc, which is Chinese i think. Specs looks similar to mecer and rct which is rebranded units
Click to expand...

i would literally rathr just buy the branded one to have better local support and warranty etc
 
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