If a device requires 12v and 2 5 amp can i use a power source which delivers 12v Tags: Power Supplies Connection Devices Power Source Components Last response: February 20, 2012 5:38 AM in Components Share mdrizwan_1 February 17, 2012 4:19:27 AM hello I have a Device which has 12v 2.5A rating and i have an adapter with 12v 1A rating ca i connect his device with this adapter is it fine ? Regards More about : device requires 12v amp power source delivers 12v dodger46 a b ) Power supply February 17, 2012 4:30:23 AM The adapter is designed to cope with 1 amp, and not a load 2 1/2 times that, so the short answer is 'no'. Likely to generate a lot of heat, might work for a while but personally I wouldn't risk it... m 0 l dodger46 a b ) Power supply February 20, 2012 4:02:20 AM You're welcome.... m 0 l Can't find your answer ? Ask ! Get the answer truegenius a b ) Power supply February 20, 2012 5:38:18 AM no, voltage of your adapter will drop due to excessive load, and it will harm your adapter. (from title i thought that you want to use a 12v lead acid battery instead of 12v rail of psu to power your rig) m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedIm building a computer, and the video card im using is the nvidia gtx 770, which requires a 12v rail at 42 amps. The power sup Forum SolvedI have a 12v. - 500ma power supply, will it power a fan that requires 12v - 36 amp Forum SolvedShapphire R9 270x Vapor X Power Supply +12V Required Amps? Forum Will a gtx 660 or 760 work with a 550 watt power supply that has 2 12v 16 amp rails? Forum PSU has 2x4 pin ATX 12v and 1x8 pin EPS 12v - which one to use? Forum can I power a 12v 2.5 A bilge pump with a 12v 2 A wall adaptor Forum power problem (-12V: 2,53V -5V: 1,13V ) Forum can i discharge 1.2v nimh batt using 5ohm resistor Forum Which ATI Card for a P4 2.5, w/ low Power Requirments Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !