Itronix gobook general dynamics XR-1 IX-270 Won't Charge battery...

Before mods decide to move this post to another section: I figure here's where the largest collection of rugged notebook users would gather, so perhaps someone w/one of these could provide some insight.

I've got two of these off ebay. After some work I managed to locate 2 used cells from a vendor. One was dead while the other had 15% charge on arrival. After draining it, the cell refused to recharge. I chucked it up to 2 bad batteries and got a refund.

Some time later I scored a newer battery. This one arrived w/90+ % charge and actually laster more than 2 hours while using, but again refused to recharge from either machine. At this point I'm thinking it's the machines and not the other way around...Any ideas?

On one machine it will shut off if I wiggle the jack. Both machines work on Ac power and both machines' charging indicator light up

 

ok...I think I figured it out. Vendor originally sent a thinkpad charger w/these (same ones we use on toughbooks). Originally I didn't find any problems w/it, it works afterall...however I just bumped into a certificate of compliance:
http://www.gd-itronix.com/upload/specifications/us/Itronix_Hazloc_Cert of Compliance.pdf
that specifies a 19 volt charger at 4.75 amps.

If I remember correctly, voltage is kind of the ''push'' for electricity, and one must always use a higher voltage source to charge batteries? Ibm is 16 volts.

Could this be it? Adapter is an asus generic all over ebay (ordering one as I type)

 

problem solved. Found a variable radio shack one at a flea market for 10 bux... Voltage was culprit.