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... dodger46 a b ) Power supply February 20, 2012 4:02:20 AM You're welcome.... 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) Can't find your answer ? Ask ! Publish Related resources Multiple 12v rails VS single 12v rails Forum Can i combine the 12v rail on multiple power supplies? Forum What is the "correct" way of calculating amps on multiple 12V rails? Forum Why would I get a split rail PSU if it offers less 12V amps? Forum + 12v 16A enough for hd5670? Forum Nvidia gtx 260 PSU + 12V Amp requirement Forum 4 + 12v rails rated at 18amps each on a 700w can it power an ati 5770? Forum 7770 and 650Ti 12v rail Amps compared to my PSU Forum Which rail goes to what? (In a four 12V rail PSU) Forum Hiper 580W Type R for GTX 560: 12V 20 amp rail? Forum GTX 660 + 12v Amp requirement question Forum 12v solar or battery powered PSU. Can it be done? Forum Best (FAST) PCI-E Card for a 18 amp on 12v line PSU Forum How many amps do i have on my 12v rail? Forum PSU Help Forum Intel I7.... but which one? XD Forum Computer power surge Forum [Solved] Power Supply Short circuit? EE help me. Forum [Solved] Which of these 2 laptops would you reccomend i get and why, thanks. Forum [Solved] Which of these 2 laptops is best to get, they are pretty close. Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !