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No you can not use this power supply 12 V DC 500 ma instead 12VDC 1amp because this battery will not able to deliver sufficient power to that device which you want to power it from this battery and your device will not work fine or it will work with very poor performance.

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13y ago
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11y ago

The device may take more current from power supply....so cannot be used

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11y ago

Yes the power source has the ability to supply a maximum of 3000 mA. The device only draws 500 mA. So there is ample supply left from the source.

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Q: Can you use a 12VDC 500 mA on a unit that asks for 12VDC 1amp?
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