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I bought this also but my battery seems more like 2000mah not 3000mah. I contracted the seller and he is sending me a replacement battery. If the new one truly is 3000mah I will be extremely happy. If not I will buy the seidio 3500mah battery and use this battery cover. I really like the battery cover it does truly look like it could be stock.
I decided to go for the 3000mAh battery off eBay for $11.27.
http://cgi.ebay.com/New-3000mA-Extended-Battery-Cover-Sprint-HTC-EVO-4G-/180532598813?pt=PDA_Accessories#ht_978wt_911![]()
If doesn't work, I'll just order myself a Seidio. I'll let you guys know how it goes. Right now my average is about 7-8 hours of battery life.

Are you guys all buying from ebay? I have a yoobao coming in soon and will see if their 3000 seems more realistic

where did you buy? How much?
brand named battery should be more reliable, concerning my life
but seidio is really crazy expensive
If this Chinese battery turns out to be working...12 Bucks for a 3000mah is much more cost efficient then paying 70bucks for 3500mah...Just so it can say Seidio on it...Because i love the fact how people are saying the chinese battery are bad quality when 98% of our Products Nowadays are made in china....I bet the Seidio one is also
My Chinese knockoff blows doors on my Seidio. I charged it and put it in on Friday night. It was on WiFi with the exception of going out to dinner. I used it lightly all weekend long. I am at 47 hours and it still has 28% left. The real test will be this week at work when I stream radio most of the day.

where did you buy? How much?
brand named battery should be more reliable, concerning my life
but seidio is really crazy expensive
Hey Evolicious, can you please post the dimensions of your evo with the battery and cover applied?
I really can't get an idea of how much thicker the phone is with the extended battery. Is it slimmer than the seidio one? Can we get a picture of both stock and this battery cover from a leveled perspective. Thanks
Nice, it doesn't look much bigger than the phone with the seidio case on it.