[Soekris] Lightweight UPS

[Joel Jaeggli]

Joel Jaeggli wrote:
> Bill Maas wrote:
>> Hi,
>>
>> here's a question that's been in my mind for a while now: is there some
>> widely available toy or other mass-produced item that happens to have an
>> excellent loader and batteries which can easily be ripped out and could
>> serve as a lightweight UPS for my 2 Soekris boxes? Must be able to feed
>> while loading of course. All available UPS systems seem to be in the kW
>> range. One of the reasons why I run these Soekris boxes is their 3-10 W
>> power consumption, so kW's are way out of range, as are the prices of
>> these things. [Links to] loader/feeder circuit diagrams also welcome.
> 
> 12 volt battery
> 
> charge controller
> 
> breaker

The other thing I would observe is that if you put a regulated dc power
supply between the battery and the soekris you can put up with a
multitude of sins that might otherwise be fairly messy depending on the
other components used.  obviously pulling your gel cells down to the
point where they are flat is not such a great idea from a lifespan
perspective but a 12volt 7ah battery should run a 5501 for about 10
hours at a minimum unless you have lots of perhiperals.

> all electronics corp is probably a good place to start... in fact:
> 
> http://www.allelectronics.com/cgi-bin/item/BC-80/search/2_AMP_%22#34;SMART%22#34;_BATTERY_CHARGER___MAINTAINER_.html
> 
> looks promising
> 
>> Bill
>>
> 
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