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* Depending on the metal battery clip style and plastic thickness, the battery positive terminal may not make good contact, without carving some of the plastic away with a knife.
 
* Depending on the metal battery clip style and plastic thickness, the battery positive terminal may not make good contact, without carving some of the plastic away with a knife.
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== Cost savings==
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== Cost analysis==
 
* Total cost of this design: $1.37 US
 
* Total cost of this design: $1.37 US
* A [https://www.amazon.com/MakerFocus-18650-Battery-Shield-Raspberry-Arduino/dp/B07PS7DT62 similar commercial product] is about $8 US
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* A [https://www.amazon.com/MakerFocus-18650-Battery-Shield-Raspberry-Arduino/dp/B07PS7DT62 similar commercial product] is about $8 US.
# Estimate your costs
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* Printing this design, as opposed to buying from Amazon, yields 580% savings
# Find a commercial equivalent, cite it and put the [url in square brackets]
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However - I think it is more appropriate to compare the cost of the above design with what most consumers would be doing, buying and throwing away Alkaline AA cells. a [https://www.amazon.com/AmazonBasics-Performance-Alkaline-Batteries-Count/dp/B00MNV8E0C/ 48-pack of AA cells] can be purchased for $14 US, yielding a per-cell price of $0.29. Assuming 2 AA batteries would need to be replaced in a device each year, this design pays for itself in just over 2 years time. If an environmental cost is factored into the production/disposal of Alkaline AA's, the payoff time is shorter.
# Calculate $ savings and % savings
      
== Benefited Internet Communities ==
 
== Benefited Internet Communities ==
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