This is a great product. As stated charges in 45 minutes and as it charges AA and AAA (the ones I used most) its a great price. Having a young boy with numerous battery operated toys it saves a fortune in the long run and having to only wait 45 minutes to charge it keeps him happy too!! May seem expensive to start out but once bought with batteries the savings are amazing. The charge seems to last a reasonable amount of time depending on what you are using it in. A definate must buy.