Duty Electronic

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We need a science project that demonstrates the scientific method. Does anyone have a cool idea?

Do a comparison of which AA battery lasts longest. Hypothesise which battery will last the longest and why. Don't rely on advertising claims. Look up the different types of batteries and do some research about the way they're made. Are the more expensive high-tech batteries really worth the cost?

Get 10 dollar-store cheap flashlights that use 1 AA battery each. Purchase 10 different types of batteries, all AA size. There are cheap carbon batteries, alkaline, ni-cads, li-ion, super duty electronic batteries, for example.
Borrow an electronics multi-meter which measures voltage. A general purpose battery tester isn't sensitive enough. Measure each type of battery and write down the voltage
Put one of each kind of battery in the flashlights, and let them run for 1 hour. Take them out (keep them in order!) and test the voltage. Put the batteries back in the flashlights and test them again in 1 hour. Test them every hour until the last battery quits lighting the last flashlight.
Make a chart showing the batteries and how they performed over time. Then, figure out which battery REALLY cost more or cost less to use.

Discover Duty Electronic On eBay Below:

24x 00005 Heavy Duty Electronic Digital Caliper w Fine Adjusment AB11 1660
24x 00005 Heavy Duty Electronic Digital Caliper w Fine Adjusment AB11 1660
$167.27
Out of Stock 90 Days SHARS Aventor 24 600mm IP65 HEAVY DUTY ELECTRONIC CALIPER
Out of Stock 90 Days SHARS Aventor 24 600mm IP65 HEAVY DUTY ELECTRONIC CALIPER
$2,970.95
SHARS Aventor 40 1000mm IP65 HEAVY DUTY ELECTRONIC CALIPER W NIB STANDARD NEW
SHARS Aventor 40 1000mm IP65 HEAVY DUTY ELECTRONIC CALIPER W NIB STANDARD NEW
$676.95
SPECIAL 60 Inch Heavy Duty Electronic Digital Caliper in Wooden Cas
SPECIAL 60 Inch Heavy Duty Electronic Digital Caliper in Wooden Cas
$659.99
Heavy Duty Stainless Steel 60 Electronic Digital Caliper  Wooden Storage Case
Heavy Duty Stainless Steel 60 Electronic Digital Caliper Wooden Storage Case
$629.88
24 600mm Electronic Caliper Heavy Duty with Fine Adjustment
24 600mm Electronic Caliper Heavy Duty with Fine Adjustment
$200.00
60 Inch HEAVY DUTY Stainless Steel Electronic Digital Caliper
60 Inch HEAVY DUTY Stainless Steel Electronic Digital Caliper
$629.77
2pc 24 Inch Heavy Duty Electronic Digital Calipers
2pc 24 Inch Heavy Duty Electronic Digital Calipers
$279.99
Heavy Duty Digital Caliper Electronic LCD Micrometer Measuring 0 6 150mm 5
Heavy Duty Digital Caliper Electronic LCD Micrometer Measuring 0 6 150mm 5
$25.64
Heavy Duty Digital Caliper Electronic LCD Micrometer Measuring 0 8 200mm 4
Heavy Duty Digital Caliper Electronic LCD Micrometer Measuring 0 8 200mm 4
$27.72
Heavy Duty Digital Caliper Electronic LCD Micrometer Measuring 0 6 150mm 1
Heavy Duty Digital Caliper Electronic LCD Micrometer Measuring 0 6 150mm 1
$6.19
Heavy Duty Digital Caliper Electronic LCD Micrometer Measuring 0 6 150mm 2
Heavy Duty Digital Caliper Electronic LCD Micrometer Measuring 0 6 150mm 2
$16.67
Heavy Duty Digital Caliper Electronic LCD Micrometer Measuring 0 6 150mm 3
Heavy Duty Digital Caliper Electronic LCD Micrometer Measuring 0 6 150mm 3
$17.72
12 1 2 in Midi Lathe Electronic Variable Speed Wood Lathe Heavy Duty By Delta
12 1 2 in Midi Lathe Electronic Variable Speed Wood Lathe Heavy Duty By Delta
$725.14
SPECIAL 80 Inch Heavy Duty Electronic Digital Caliper in Wooden Case
SPECIAL 80 Inch Heavy Duty Electronic Digital Caliper in Wooden Case
$1,279.99
Insize Waterproof Electronic Digital Protractor Heavy Duty Size L 1929 0
Insize Waterproof Electronic Digital Protractor Heavy Duty Size L 1929 0
$220.00
PICK UP ONLY 60 Inch Heavy Duty Electronic Digital Caliper No Case
PICK UP ONLY 60 Inch Heavy Duty Electronic Digital Caliper No Case
$399.99
12 Heavy Duty Long Jaw Electronic Caliper NEW
12 Heavy Duty Long Jaw Electronic Caliper NEW
$80.00
NEW Digital Caliper Electronic LCD Micrometer Measuring 0 6 150mm Heavy Duty
NEW Digital Caliper Electronic LCD Micrometer Measuring 0 6 150mm Heavy Duty
$14.84
40 1000mm ELECTRONIC DIGITAL CALIPER heavy duty long jaw X LARGE SCREEN
40 1000mm ELECTRONIC DIGITAL CALIPER heavy duty long jaw X LARGE SCREEN
$299.00
24 600mm ELECTRONIC DIGITAL CALIPER heavy duty long jaw X LARGE SCREEN
24 600mm ELECTRONIC DIGITAL CALIPER heavy duty long jaw X LARGE SCREEN
$169.00
OUT OF STOCK 90 DAYS 08 24 Heavy Duty Digital Electronic Caliper Centerline
OUT OF STOCK 90 DAYS 08 24 Heavy Duty Digital Electronic Caliper Centerline
$56,800.95
SHARS 24 Heavy Duty Long Jaw Electronic Digital Caliper
SHARS 24 Heavy Duty Long Jaw Electronic Digital Caliper
$129.00
Fowler 54 100 012 0 Ultra Cal III Heavy Duty Electronic Caliper 0 12 300mm
Fowler 54 100 012 0 Ultra Cal III Heavy Duty Electronic Caliper 0 12 300mm
$663.58
Milwaukee Heavy Duty Power Electronic Magnetic Drill Press
Milwaukee Heavy Duty Power Electronic Magnetic Drill Press
$1,500.00
SPECIAL 40 Inch Heavy Duty Electronic Digital Caliper in Wooden Case
SPECIAL 40 Inch Heavy Duty Electronic Digital Caliper in Wooden Case
$299.99
Heavy Duty 24 600mm Electronic Digital Caliper Long Jaw Resolution 00005
Heavy Duty 24 600mm Electronic Digital Caliper Long Jaw Resolution 00005
$154.99
Heavy Duty 18 450mm Electronic Digital Caliper Long Jaw Resolution 00005
Heavy Duty 18 450mm Electronic Digital Caliper Long Jaw Resolution 00005
$107.99
2Pcs Heavy Duty Keyless Drill Chuck 03 32mm for Mini Electronic Drill
2Pcs Heavy Duty Keyless Drill Chuck 03 32mm for Mini Electronic Drill
$5.42

Recently Purchased Duty Electronic:


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