Download Table 3 Work (Bachelors Level)

Maximize Battery Life of 3G
Mobile Phones
Learning Goal
• Upon the completion of the lesson, students
have the ability to address issues related to
maximizing battery life of 3G cell phones
Assumed Learning
• State the function of a battery
• Describe the construction of a single cell
battery
• List types of cell phones batteries
• Compare characteristics of cell phone batteries
• List types of batteries used in 3G cell phones
Objectives
• Describe the design constraints of cell phone
batteries
• Identify factors affecting battery consumption
• Measure voltage and current when the cell
phone is being used for different modes and
functions
• Explain methods to increase battery life
Describe the design constraints of cell
phone batteries
• Old mobiles - new mobiles - future mobiles
• Size, Weight, Heat, Cost, Environmental issues,
Charging
• Delivered using PowerPoint with pictures of
new and old phones and future developments
Identify factors affecting battery
consumption
• Q&A session
– What are the functions of the mobile?
– Which functions consume more power?
• Students write answers on the board
• Students are put in groups of 4 and use ideas
from the board to prioritize power consumption
into top 5
Measure voltage and current when the
cell phone is being used for different
modes and functions
• Groups of 4 students will use their own mobile
phones with power adapters and volt and
current meters to measure the voltage and
current of the 5 functions that they selected as
the most power consuming
• Use excel to chart the results of the
measurements to confirm their hypothesis
Explain methods to increase battery
life
• Write an overview report of at least 1,000
words concisely describing issues faced in
maximizing battery life of 3G mobile phones.
Justification
• Seven principals for good teaching practices in
undergraduate education (Chickering and Gamson)
• Andragogy vs. pedagogy
• Bloom’s Taxonomy
• Scientific Method
• Competition and cooperation
Preparation
• The week before this lesson, the teacher write
down mobile make and model to give the
technician to prepare the battery adaptor
• Prepare 4 voltmeters and 4 ammeters
• Instruct students to bring mobile phones with
fully charged batteries
Supporting Materials
•
Sukhbir Singh(n.d.). How to maximize cell phone battery . Emagzin.com. Retrieved
from http://www.emagzin.com/gadgets-and-toys/keep-it-running-maximizing-thebattery-life-of-your-cell-phone/
Supporting Materials
•
HeartInSanFrancisco (2009). HTC T-Mobile G1 Extended Battery 2300 mAH. Where
to Buy, Weight Tests. Retrieved from
http://www.youtube.com/watch?v=19DionDFcmY
Supporting Materials
•
Caracciolo, B (2009). Changing Your Energy Consumption a Little Bit…. My Solar
Cell Phone. Retrieved from http://my.socialactions.com/profiles/blogs/changingyour-energy
Supporting Technologies
• Record Q &A session of all groups and
discussion and experiment of one group to be
made into Webcast for revision by students
• Capture Q &A session on Smartboard
• Create online discussion board for each group
to continue discussing issues about extending
battery life
• These technologies will be delivered using a
learning management system
PPT sample pics
Excel Voltage Chart
Excel Current Chart