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Author Topic: How to make a Scanmaster portable & battery operated?  (Read 5520 times)

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Offline gordyzx9r

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How to make a Scanmaster portable & battery operated?
« on: December 21 2010, 08:41:50 PM »
I have an extra Scanmaster that I'd like to make portable, but instead of using a cigarette lighter plug I'd really like to make it battery powered so I just have to plug into the ALDL and that's it.  

Possible?
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Offline daveismissing

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Re: How to make a Scanmaster portable & battery operated?
« Reply #1 on: December 21 2010, 08:48:57 PM »
Do you mean self contained batteries- inside the unit?
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Offline gordyzx9r

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Re: How to make a Scanmaster portable & battery operated?
« Reply #2 on: December 21 2010, 08:52:37 PM »
I doubt if there is room to make it self contained, but even if i just have a small battery pack that would be fine.
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Offline daveismissing

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Re: How to make a Scanmaster portable & battery operated?
« Reply #3 on: December 21 2010, 09:34:39 PM »
As long as you have the ground (negative lead) in common it should work.
I can't remember if there is a ground in the ALDL connector.
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Offline daveismissing

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Re: How to make a Scanmaster portable & battery operated?
« Reply #4 on: December 21 2010, 09:44:09 PM »
One diagram suggests pin "A" is a ground. I'd check that against the shop manual and voltmeter.
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Offline Turbodave

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Re: How to make a Scanmaster portable & battery operated?
« Reply #5 on: December 22 2010, 07:54:50 AM »
Since most small batteries like AA's  AAA's, C's, D's, etc are all 1.5 volt.  It's would take a 9 battery pack to make the needed voltage for relialble operation. So to keep the battery pack reasonably small you're talking about AAA's or AA's.

Personally I prefer the cig litghter adapter. You can't get much more portable than that.
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Offline ULYCYC

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Re: How to make a Scanmaster portable & battery operated?
« Reply #6 on: December 22 2010, 08:29:20 AM »
The lighter is only a few inches from the ALDL.  Just buy a uni lighter plug adapter and tape the wire in with the ALDL lead. Make the wires as long as you want.
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Offline gordyzx9r

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Re: How to make a Scanmaster portable & battery operated?
« Reply #7 on: December 22 2010, 08:34:18 AM »
Quote from: "Turbodave @ Wed Dec 22, 2010 7:54 am"
Personally I prefer the cig litghter adapter. You can't get much more portable than that.


But with my luck, I'd go look at a car and the cigarette lighter won't be working.
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Offline daveismissing

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Re: How to make a Scanmaster portable & battery operated?
« Reply #8 on: December 22 2010, 08:44:26 AM »
I think it has a 78L05 type reg inside so a 7.2v RC pack might just be enough to keep it in regulation. IF Bob drives the display LEDS directly off the 12v rail then they might be a bit dim, can't say for sure.

RC packs mean all sorts of recharging options?
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Offline daveismissing

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Re: How to make a Scanmaster portable & battery operated?
« Reply #9 on: January 30 2011, 06:55:47 PM »
Quote from: "daveismissing @ Wed Dec 22, 2010 8:44 am"
I think it has a 78L05 type reg inside so a 7.2v RC pack might just be enough to keep it in regulation. IF Bob drives the display LEDS directly off the 12v rail then they might be a bit dim, can't say for sure.

RC packs mean all sorts of recharging options?


I had a look today since its too friggin' cold to do anything outside.
The display IS driven directly from the 12v rail and there is a 78L05 for the logic.
As long as you can see the display a lower supply voltage should be viable.
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Offline WE4_Roller

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Re: How to make a Scanmaster portable & battery operated?
« Reply #10 on: February 02 2011, 04:49:44 PM »
A 9V battery might work and they are small.

Or else a small 12Volt alarm type Gel cell battery that could easily be recharged.
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