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Gear / Technical Help => Remote Power => Topic started by: rowjimmy on April 16, 2007, 10:51:40 PM
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Ok. I have my battery 12v 18Amphours (3 tons ;) ) and I've wired it up for my konnekt8.
But it won't power up.
1) The battery is fully charged.
2) I've matched the polarity spec on the device (inner is neg. sleeve is pos.) and verified the polarity with my multimeter (compared to the wallwart output.)
3) device does power up with the wallwart (not fried.)
4) the only difference that I can determine is that the wallwart puts out 12.1v and the battery, fully charged is 12.9v could that make the difference? suggestions?
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ok, so not a lot of suggestions flying around here but I've concocted a bit of a work-around.
How's this sound:
12v SLA > rat-shack car power adapter (http://www.radioshack.com/product/index.jsp?productId=2103589) > 12V DC-to-110V AC Car Power Inverter > Konnekt8 wall wart
?
I got the idea from here: http://taperssection.com/index.php/topic,68238.msg914373.html#msg914373
Might that work?
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ok, so not a lot of suggestions flying around here but I've concocted a bit of a work-around.
How's this sound:
12v SLA > rat-shack car power adapter (http://www.radioshack.com/product/index.jsp?productId=2103589) > 12V DC-to-110V AC Car Power Inverter > Konnekt8 wall wart
?
I got the idea from here: http://taperssection.com/index.php/topic,68238.msg914373.html#msg914373
Might that work?
that might work but you will greatly reduce you runtime, definately a suitable temporary solution.
Maybe try draining the SLA a bit to lower the voltage. It seems odd that the 12.9V would be too high for the unit, unless it really like 9v or somthing that the AC adapter load causes the voltage to drop below 12v
maybe try asking
Mike Martin TC|US distributer @ keysolutns@hotmail.com he has posed about their products on a few message boards I see
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that might work but you will greatly reduce you runtime, definately a suitable temporary solution.
Maybe try draining the SLA a bit to lower the voltage. It seems odd that the 12.9V would be too high for the unit, unless it really like 9v or somthing that the AC adapter load causes the voltage to drop below 12v
How much do you think it'll recude run time? 20%, 50% Makes me wonder if it's worth hauling...
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that might work but you will greatly reduce you runtime, definately a suitable temporary solution.
Maybe try draining the SLA a bit to lower the voltage. It seems odd that the 12.9V would be too high for the unit, unless it really like 9v or somthing that the AC adapter load causes the voltage to drop below 12v
How much do you think it'll recude run time? 20%, 50% Makes me wonder if it's worth hauling...
probably closer to 50%, which i guess is better than the 0% you have now.
looking @ the specs it may be possible to use the firewire input to power the unit w/ a hacked firewire cable.
I would confirm this with someone else that has more knowlege of the box, it may expect a computer connection if being powered via firewire.
Pin 1 +
Pin 2 -
(http://www.interfacebus.com/1394_Cable.jpg)
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50% :-\
I considered researching the firewire idea. Might be a longterm notion but I'm not ready to make it happen overnight...