External 12 Volt Supply For The HMC-150 ????

[BobDiaz]

For those who own the HMC-150, is there any way you know of to power the camera from an external 12 volts, like the car's 12 volts?


Bob Diaz

[Evro]

Bob you could get one of those cigarette lighter adaptors that step the car's 12 volts to lower voltages.

From my rudimentary experiments, as long as you can get a clean 7 to 7.8 DC volts into the camera via the DC Coupler there should be no problems, although you will need some way of telling what your remaining battery capacity is because as far as the HMC is concerned it is running of Mains Power. I've been using Global Media Pro batteries that have a 4 stage LED level meter - but then you really need to get the voltage in the right ballpark because most of the aftermarket 7.4V batteries actually pump out between 8 to 9 volts and the camera will reject them.

[pgovotsos]

Radioshack sells an inverter you can use. It plugs into a cigarette lighter or 12V and provides a 120V plug that you can plug the 150s adaptor into. Auto stores sell them also. I'm assuming the 150 comes with an AC adaptor, I'm still waiting on mine.

Panagiotis

[adolgin]

http://dvxuser.com/articles/charger/
Scroll to the bottom of the page
HTH

[Evro]

Wow, you guys have some funky devices :D

[Barry_Green]

Not gonna work easily; the HPX170 and HMC150 don't have a separate DC IN jack.

You could hack something together by using an inverter between your battery and the AC power supply, I guess...

[adolgin]

Not gonna work easily; the HPX170 and HMC150 don't have a separate DC IN jack.

You could hack something together by using an inverter between your battery and the AC power supply, I guess...
What about the dummy battery cable/DC cord? The HMC150 hopefully would accept 7.2V source through it?

[Evro]

What about the dummy battery cable/DC cord? The HMC150 hopefully would accept 7.2V source through it?

You don't need a separate DC input socket on the camera, all you need is to splice a female inlet onto the DC coupler cable that comes with the camera.

http://www.dvxuser6.com/uploaded/14634/1227821076.jpg

Then, as I've said previously you can feed the camera with any clean stable DC voltage within the range of 7 to 7.9 volts.

This is definitely an extreme method which I'm using while I wait for FullCompass to give me a quote on batteries & shipping.

[ESTEBEVERDE]

Love you guys.

Love you to pieces!


1. First find the optimum voltage for your device. You can find this in your manual, by reading the direct DC output of the power supply provided by the manufacturer, and my measuring the voltage on a relatively new fully charged manufacture battery.

2. Identify the connection required.

Note Size and Polarity!

Do not take this lightly.

Measure 4 or 5 times and solder once. ;-)


3. Get a High Quality Sealed Lead Acid Battery

4. Place the appropriate FIXED step-down dc/dc converter. I do not recommend using an adjustable or user selectable one. To much margin for error and poof!

5. Make sure you have the appropriate fuse in line between the converter and device.

6. ENJOY!


I personally like to use U1 SLA Wheel Chair Batteries.

They seem to work great and take a good deal of abuse.

[ESTEBEVERDE]

Not gonna work easily; the HPX170 and HMC150 don't have a separate DC IN jack.

You could hack something together by using an inverter between your battery and the AC power supply, I guess...


That's of course one way but it is very inefficient in terms of battery life.