https://web.stevens.edu/lmqs/index.php?page=seminar (Stored in Google Drive)
Showing posts with label electronics. Show all posts
Showing posts with label electronics. Show all posts
Thursday, January 11, 2018
Monday, February 13, 2017
Understanding Battery Rating, mAh
mAh is a unit of charge.
For example, if you draw 2 mA for 5 hours, you have used 2 mA · 5 h = 10 mAh.
You can approximate how long a battery will last by dividing its total charge (in mAh) by load current (in mA).
Say you have a 1800 mAh battery, and you connect it to a 20 mA load:
1800 mA⋅h20 mA=1800mA⋅h20mA=90 h
For example, if you draw 2 mA for 5 hours, you have used 2 mA · 5 h = 10 mAh.
You can approximate how long a battery will last by dividing its total charge (in mAh) by load current (in mA).
Say you have a 1800 mAh battery, and you connect it to a 20 mA load:
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