[Konvas] DIY battery pack (off-topic)

[Sean McVeigh]

Just finished this guy... still needs paint & labelling, but check it  
out:
-18V main output (15x 10Ah NiMH cells)
-12V secondary output switchable high and low current mode (12v tap  
from pack or 2A regulator across entire pack -- evens out the wear  
across cells)
-auxiliary "boost" jack to add extra battery in series (ie. add an  
external 12V pack to get 30V output for my Locam)
-main output digital voltage monitor
-measures about 8x6x6"

http://www.smallpony.ca/battery.jpg

Cheers,
Sean