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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: daz1977 on September 08, 2009, 03:12:55 pm

Title: battery size
Post by: daz1977 on September 08, 2009, 03:12:55 pm

whats size battery do i need ie amps to run a 60 psi pump with 100m of 6 mill,

cheers

Title: Re: battery size
Post by: Ian Lancaster on September 08, 2009, 06:30:08 pm

It's not the size, it's how long you want to work for (ie how much water you're going to pump during the day)

On your pump it will tell you the amperage (usually about 7).  A hundred a/h battery will give a hundred amps for one hour, or one amp for a hundred hours, or any combination in between.

You can work out what size you will need to keep your pump running through the day.

A 7 amp pump will run for 14 hours on a hundred a/h battery

That's assuming everything is perfect.  Allow about 20% for power losses, etc, the pump should still run for about 11 hours

Title: Re: battery size
Post by: daz1977 on September 08, 2009, 07:54:33 pm

cheers for that

Title: Re: battery size
Post by: EZclean on September 08, 2009, 07:57:27 pm

remember that your pump will not be running all the time. in between windows and houses etc.
(unless you dont have a tap on the hose)