OT: APC Batteries

[James Knott]

Giles Orr wrote:
> 2008/7/15 James Knott <james.knott-bJEeYj9oJeDQT0dZR+AlfA at public.gmane.org>:
>   
>> Ansar Mohammed wrote:
>>     
>>> A customer of mine has several APC UPSs that need new batteries that they
>>> are giving away. Is it worth it to source new batteries for these UPSs?
>>>
>>>       
>> A new battery is cheaper than a new UPS, so if it's working fine otherwise,
>> get a new battery.  One source is this place:
>> http://www.magnacharge.com/index.html
>>
>> They're located near near Dixie and Britannia and they take back the old
>> batteries.  There's a link to them from the APC site.
>>
>> BTW, some people find a Yamaha motorcycle battery fits.  While it may fit,
>> it's the wrong battery type for the job and so not a good idea.
>>     
>
> I have an older APC BackUPS ES 500 that was down to a functional time
> of about 20 seconds with a computer that wasn't even sucking down much
> power.  A friend of mine found me an identical size battery for $20
> and the UPS is now working fine.  The battery is very easy to change.
> It did look like a motorcycle battery and is, to the best of my
> limited knowledge, a sealed lead-acid battery.  What's the difference
> between that and a motorcycle battery?
>
>   
It's the duty cycle they're designed for.  A motorcycle battery is 
designed for large, but brief surges of power.  On the other hand, a UPS 
battery is designed for deep discharge at a lower rate.  Using the wrong 
battery type will result in decreased life and poor service.


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