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Authored by: Anonymous on Tuesday, June 18 2013 @ 12:05 PM EDT |
However - since you mention the carbon footprint. I am curious. First we
need some info. Lithium Ion (rechargeables):
Cycles: avg
400-1200
Energy: 200 Wh/kg
Lithium (non-rechargeable,
disposables):
Energy: 250 Wh/kg
Alkaline (non-rechargeable,
disposables, long life):
Energy: 110 wh/kg
Ok... let's do some basic
math. Let's use the least number of rechargeable cycles in our comparison. So,
you purchase 1 lithium-ion battery lasting 400 cycles giving you:
400 * 200
= 80,000 wh/kg of energy
In order to get 80,000 wh/kg of energy out of a
non-rechargeable lithium battery, you need:
80,000 / 250 = 320
batteries
For alkaline you need:
80,000 / 110 = 727 batteries
Ok,
your turn:
Please show me how the total carbon footprint (including
everything such as harvesting, manufacturing, transportation, disposal, etc) of
320 Lithium batteries is lower then the carbon footprint of a single
rechargeable Lithium Ion.
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