bought this product when the 3 batterys i had from microsoft would only last about 2 minuets. first charge from the package i got around 30 hours of play before the lights flashed saying it was getting low. these batteries are better than microsofts battery and at about half the price. only thing i didnt like is the battery is brighter than the controller...but its not like that really matters...i suggest everyone who has a wireless controller get atleast 1 of these batteries.

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I have had no problems using these rechargeable batteries in my Xbox controllers so don't have any fear that they're not by Microsoft. I also bought the Xbox 360 Quick Charge Kit which is so much better than the Xbox 360 Play & Charge Kit.

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My grandson is very happy with the new batteries. He now has an extra set.

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The Power Brick product is a great alternative to the overpriced proprietary MS Rechargeable Battery Pack. Identical form-factor for a perfect fit in the back of the controller (unlike most other non-MS battery packs). I have also done a time of use per full charge and a time to recharge comparison between this brand and the MS packs... The difference was negligible. Haven't used these enough to compare long-term charge decay, but so far I'm very satisfied. Save some money and buy this product.

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