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Home -> Resources -> Twenty-One Green IT Tips -> Tip 20. Use Rechargeable Batteries
20. Use Rechargeable Batteries Most computer equipment runs on wall power. Some peripherals – like wireless mice – use dry-cell batteries. For these (and other uses), we suggest you consider using rechargeable batteries. Why? On average, each person in the United States discards eight dry-cell batteries per year (source: US EPA). Web search:  rechargeable batteries
Web search: rechargeable battery chargers
Rechargeable Battery Benefits There are several rechargeable battery benefits. First, they are more economical than disposable batteries. There is an initial cost for a battery charger. Plus rechargeable batteries cost quite a bit more than "disposable" batteries. Because they can be reused, however, rechargeable batteries are more cost effective. A second important benefit is environmental. Your use of rechargeable batteries reduces the amount of heavy metals that are sent to landfills. According to the US-EPA, Americans purchase over 3 billion disposable batteries each year. Your involvement can help reduce that number, and the associated waste it creates. How Much Do You Save? First consider disposable batteries. Online, we found a four-pack of AA alkaline batteries for $6.00. Next consider the cost of a charger and four AA rechargeable NiMH batteries. Although there are better prices available, the suggested retail price for a Rayovac Universal Batter Charger is about $27. The suggested retail price of four rechargeable batteries is around $18. Total investment: $45.00. Getting to the "total cost", five-hundred sets of disposable AA alkaline batteries is $3000.00 ($6 times 500). One set of rechargeable batteries (including charger) is $45.00. (Rechargeable NiMH batteries can be recharged up to 1,000 times, but we cut this in half and count only 500 uses.) Net savings with rechargeable batteries for 500 Uses: $2,955.00 |
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