Register to reply

Do amps matter?

by iancoric
Tags: amps, matter
Share this thread:
iancoric
#1
Mar8-05, 12:17 AM
P: 2
I have two laptop computers but a car charger for only one of them. The charger says it produces 18.5V 4.9amps. Will this be OK for the other laptop - the specific charger sold by the manufacturer produces 18.5V 2.5amps. Thanks!
Phys.Org News Partner Engineering news on Phys.org
Future phones to use blood and speech to monitor HIV, stress, nutrition
Neuron circuit may enable pitch perception applications
Quasi-distributed temperature sensors from draw-tower fabrication technology
chroot
#2
Mar8-05, 12:35 AM
Emeritus
Sci Advisor
PF Gold
chroot's Avatar
P: 10,427
The current specifications on devices like these are the MAXIMUM current the device is able to supply. These devices produce a specific potential (voltage) and the thing you plug into it determines how much current must be delivered.

As long as your new charger can produce as least as much current as your old charger, you should be fine.

- Warren
iancoric
#3
Mar8-05, 01:04 AM
P: 2
Thanks - i was hoping you'd say that!


Register to reply

Related Discussions
New to Op-Amps Engineering, Comp Sci, & Technology Homework 10
New to op-amps Engineering, Comp Sci, & Technology Homework 30
Help with Op-Amps Electrical Engineering 23
Value of the resistence General Physics 2
Conversion factor from amperes to milliamperes Introductory Physics Homework 7