How long can a rechargeable battery last over its life?
Answer. Let’s say you are currently using ordinary throwaway batteries for your portable CD player and you replace the batteries once a week. For simplicity, lets say there are 52 weeks in a year. You can recharge your NiMH rechargeable batteries 500 times. So the NiMH rechargeable battery can last 500 recharges / 50 weeks = 10 years. That means you could still be using the same batteries you buy today in 10 years time! Chances are that once you get into rechargeable batteries you will never use a throwaway again.
