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Title: Good but be careful when you charge
Review: These extended vibrating batteries are great! They will easily last 3-4 days on one charge. Also the vibrating feature is fun.The only bad thing about the extended battery is it really adds weight and mass to you phone.Another thing i should say is that since this is a Nickel Metal Hydride (NiMH) battery you have to be careful when you charge your phone particularly for the first few times. It is recommended that you should only charge this phone when it is completely discharged. DO NOT charge if it is only have way discharged. Otherwise you mess up your battery and battery performance will significantly drop.
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