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You want a strong new battery. I use a 770CCA/900CA battery from Samsclub.

Something at least 700CCA would be good.

-- Edited by Mike Sullivan at 13:28, 2009-01-21

Apple Roof Cleaning Tampa wrote:

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Back when we used 12 volt roof cleaning pumps, we always used the best deep cycle marine battery we could afford.
NOTHING is more embarassing then to not be able to do a roof because of a POS Battery.
You can make a LOT of money cleaning roofs.
Why short change YOUR future ?
Invest, and BELIEVE in yourself, get the best equipment you can afford.

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No truer words have ever been said Chris!!
There's a difference in getting what you can afford and cutting corners.
Getting what you can afford is at least your best effort.
Cutting corners  usually means failure to some degree, which isn't always a terrrible thing,..unless you know you tried to save a nickle by cutting corners. Then you just end up making more work and kicking yourself.

Jeff

 

Excellent choice. Very strong battery.

There is only like 2 major manufacture for the retail offerings anymore. Everything is rebranded which pretty much makes them all about the same.
I just buy the standard deep cycle DieHards (27's) anymore for a few different reasons...
They cost half as much as the Platinums and since I run 4 of them (unrelated to roof pumps)it makes a huge price difference overall. I have no trust that any slight increases in quality of the expensive ones out weigh all the user variables of why batteries go bad earlier then expected. I've seen too many high end batteries go bad just as fast as low end ones. Such batteries were far supperior to what you can get nowadays. Generally the heavier the battery the higher the quality as the weight means the plates are thicker and less prone to falling apart. There still maybe some good batteries made somewheres but they are not readily available or have changed ownership/names over the years. Not sure if I can recommend Trojan anymore as I went through an array of them in under 2 years giving me no more time than the diehard offerings. Years back I heard the best was Rolls Royce. They supposedly made really heavy mofo's that last 20 year in storage arrays for off the grid houses. 20 years back I had an array of heavy 6 volt's that went about 5 years before selling the equipment. Things might probably still be working if taken care of... See a good battery should be able to be recovered by equalizing methods.
Here is a link to everything ya ever wanted to know about batteries: http://www.batteryfaq.org/ 
section 16 is on how to fix or take care of a battery

-- Edited by Norcal Surface Care at 16:38, 2009-01-30

-- Edited by Norcal Surface Care at 16:40, 2009-01-30