Inverts question

[molly 2]

I am looking at buying a 300 w inverter 600 w peak modified Signe wave how many amps can take it from the Battery ,Howe large an accessory will 300 w run in amps. I want to run an 1.8 amp 24 volt battery charger. Thanks .

 

[sparrks]

I am looking at buying a 300 w inverter 600 w peak modified Signe wave how many amps can take it from the Battery ,Howe large an accessory will 300 w run in amps. I want to run an 1.8 amp 24 volt battery charger. Thanks .

What is the 1.8 amp 24v battery charger for? Look for an inverter to go from 12v > 24v maybe something along these lines

 

[harrow]

What is the 1.8 amp 24v battery charger for? Look for an inverter to go from 12v > 24v maybe something along these lines

Good idea,

it's daft to step it up, then just to drop it back down.

Mobility scooter?

:banana::banana::banana:

 

[molly 2]

Good idea,

it's daft to step it up, then just to drop it back down.

Mobility scooter?

:banana::banana::banana:

Correct scooter comes with a 240 v 1.8 amp charger just need to know is 300 watt constant inverter man enough .

 

[harrow]

Correct scooter comes with a 240 v 1.8 amp charger just need to know is 300 amp constant inverter man enough .

300 amp, but I think you mean 300 watt ?

The answer is no.

But the real consideration is power efficiency.

If you would be using the inverter and charger for just a couple of minutes then it would be fine, BUT your scooter needs to be on charge for a few hours.

You are going to need a lot of batteries to power an inverter for many hours.

I think I understand that you want to use the same scooter charger that you use at home ? I think you would be better off on a site with electric hook up.

Then you will have plenty of power all night to charge the scooter.

:dog::dog::dog:

 

[trevskoda]

Correct scooter comes with a 240 v 1.8 amp charger just need to know is 300 amp constant inverter man enough .

Will do it as long as you have a charge going into 12v battery other wise it will bugger the supply batt,i think sparks gave you the correct reply.

 

[harrow]

Will do it as long as you have a charge going into 12v battery other wise it will bugger the supply batt,i think sparks gave you the correct reply.

Better run a petrol generator to charge the leisure battery :lol-049::lol-049::lol-049:

No better on ehu, use the scooter during the day and charge it up over night.

:wave::wave::wave:

 

[molly 2]

Will do it as long as you have a charge going into 12v battery other wise it will bugger the supply batt,i think sparks gave you the correct reply.

the gissmo sparks recommended is a 12 to 24 v Inverter not a battery charger or am I missing something ?

 

[harrow]

the gissmo sparks recommended is a 12 to 24 v Inverter not a battery charger or am I missing something ?

It say it produces 24 volts at a reasonable cost, but how many hours will you be using for and also you will have to source and attach a suitable plug/connector to fit your scooter.

You can't run this for say 8 or 10 hours off a leisure battery, without the van engine running, hence my suggestion of using electric hook ups on sites.

Or have one of these :scooter::scooter::scooter: scooters.

 

[sparrks]

the gissmo sparks recommended is a 12 to 24 v Inverter not a battery charger or am I missing something ?

Correct -it is a 3A 24v inverter. The inverter you asked should be big enough. It might need to be a pure sine wave inverter though.

The nearest I can find is this at 24v and 1.5A BUT NOT for Li-ion batteries.

 

[sparrks]

What type of batteries are they and what capacity? Would you need to charge from flat or mainly top up after light use?

 

[molly 2]

Correct -it is a 3A 24v inverter. The inverter you asked should be big enough. It might need to be a pure sine wave inverter though.

The nearest I can find is this at 24v and 1.5A BUT NOT for Li-ion batteries.

thanks for link I was strongly advised against these charges as they over heat the 12 v supply socket and wiring

 

[molly 2]

What type of batteries are they and what capacity? Would you need to charge from flat or mainly top up after light use?

. 2x 12 amp 12 v ,mainly top up when engine is running and Solar harvest is good . Not sure if they are gel or led acid.not lithiam .170 amps of leisure batts

 

[sparrks]

thanks for link I was strongly advised against these charges as they over heat the 12 v supply socket and wiring

They can certainly get very hot at the plug/socket connection as the cigar lighter connection was only ever designed for about 10A for 30 seconds use. However if 'hard wired' with a suitable means of disconnection then they are a good choice. I use a small portable electric 'oven' which draws around 11amps and never gets hot at the connection by using these. The warning for not disconnecting whilst live is for 230v application I only use at 12v.

 

[sparrks]

. 2x 12 amp 12 v ,mainly top up when engine is running and Solar harvest is good .

lead acid, ni-cad, Li-ion etc?

 

[molly 2]

lead acid, ni-cad, Li-ion etc?

lead acid

 

[Silver sprinter]

Use the scooter during the day and then charge it at night on the petrol generator !!!!!!!!!

 

[sparrks]

24v 2amp charger would benefit from hard wiring. Big variation on prices up and down, the linked one is £30 inclusive

 

[harrow]

If you are taking 1.8A at 24v out, that is 43.2 watts.
A mains battery charger putting that much power out will be taking in about 100 watts.
An inverter giving 100 watts mains out will take in about 120 watts.
120 watts at 12 volts is 10 amps.
Turning 12v DC to 230v AC just to turn it back to 24v DC is ridiculously inefficient.
This is not a good way to do it. Get an adapter that takes in 12v and gives out what you need. These are far more efficient and are readily available (made for powering laptops). However, you will need specialist advice, which is hard to get unless you're happy to be sold stuff you don't need.
You may find that your 24v scooter battery can be charged as two 12v batteries, using a cheap battery to battery charger.

This is my point, the charging is going to be needed for hours not just a few minutes.

:egg::egg::egg:

 

[witzend]

. I want to run an 1.8 amp 24 volt battery charger. Thanks .

the gissmo sparks recommended is a 12 to 24 v Inverter not a battery charger or am I missing something ?

You asked for 24v battery charger Sparks said you'd be better off with inverter