Is there an easy way to work out "current draw"?
Submitted: Tuesday, Jun 20, 2006 at 15:34
ThreadID:
35110
Views:
5470
Replies:
7
FollowUps:
22
This Thread has been Archived
Scoey (QLD)
Hi all,
Further to my post 35055 about my Aux battery I am going to have to get myself a new battery and I thought I might also get myself a battery monitor while I'm at it. That's all a bit by the by but.
My question this time is, how do I work out the approximate current draw of a particular appliance? eg my phone charger running through my 300W inverter. I don't have the inverter specs on me but the phone charger has on it:
Input: AC 100-240V, 50-60 Hz, 150mA
Output: DC 5.7V, 800mA
So generally speaking, can I use the specs off the particular appliance to determine the current draw for that appliance so I can estimate battery life?
Also, if that appliance is running through an inverter to add the current draw for the inverter and appliance together or just use the end appliance's draw?
Why I ask is that I can just use the monitor to guage the battery usage but my mind is a "need to know how it works" brain!
Have I completely confused anyone? Apart from myself that is!
Oh, and if it's all to hard, just tell me! ;-) Thanks a lot!
Scoey!