Can I Use the Same Car Charger for Both Laptops?

  • Thread starter Thread starter iancoric
  • Start date Start date
  • Tags Tags
    Car Charger
Click For Summary
SUMMARY

The discussion centers on the compatibility of a car charger rated at 18.5V and 4.9A with a laptop that originally uses a charger rated at 18.5V and 2.5A. It is established that as long as the voltage matches and the current rating of the new charger is equal to or greater than that of the original charger, it is safe to use. The maximum current specification indicates the charger’s capacity, not the amount it will supply, which depends on the device's requirements.

PREREQUISITES
  • Understanding of voltage and current specifications in electronics
  • Knowledge of laptop power requirements
  • Familiarity with charger compatibility
  • Basic electrical concepts
NEXT STEPS
  • Research the specifications of various laptop chargers
  • Learn about the implications of using chargers with different current ratings
  • Explore safety guidelines for using third-party chargers
  • Investigate the impact of voltage mismatches on electronic devices
USEFUL FOR

Individuals with multiple laptops, electronics enthusiasts, and anyone looking to understand charger compatibility and safety in using alternative power sources.

iancoric
Messages
2
Reaction score
0
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!
 
Engineering news on Phys.org
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
 
Thanks - i was hoping you'd say that!
 

Similar threads

Replies
24
Views
3K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 6 ·
Replies
6
Views
6K
  • · Replies 14 ·
Replies
14
Views
6K
Replies
10
Views
2K
  • · Replies 32 ·
2
Replies
32
Views
3K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 9 ·
Replies
9
Views
3K