I'd return the battery if you can for a refund. I have run into interesting batteries from China before, but not with computer batteries yet.
I found a really good deal on 6volt lantern batteries and bought a bunch from China that were shipped to the USA from Hong Kong. Immediately I knew something was wrong because 6volt lantern batteries normally have some weight to them, and this 6 pack for $10 weighed far less than normal lantern batteries. Well we went camping and I used these batteries. Each one lasted about 30 minutes and then was completely dead. Fortunately I had 6 of these and so I was able to burn through them at 30 minutes each to do some night fishing. The following day I busted one of them open to see why they are so light. Just as I suspected there were 4 AAA batteries inside hot glued to the inside compartment with solder and wire making them 1.5v x4 in series for the 6 volts. The problem though was that AAA batteries are lacking in mA/h. I never bought any more batteries through this ebay identity ever again and I left neutral feedback since the batteries worked, but left a note that they only lasted 30 min each.
BUT I did save some money buying replacement battery packs for my Uniden phone system at home that has 3 cordless handsets. The replacement batteries for the cordless phones were $22 each at Bestbuy, $18 each at Wal-mart, and Radio Shack didnt have it in stock but could special order them for $15 each. I ended up finding these batteries from a generic no-name brand on Amazon that were 3.6v and the seller had very good feedback, so I took the chance/risk and bought these for $6 each, so for $18 I had 3 batteries to replace all the batteries that no longer held a charge. $18 for 3 batteries was exactly what I was willing to pay, as for 3 batteries at a total cost of $45 to $66 for a phone system setup that cost $70 new was just stupid! I bought these batteries 2 years ago and they are still working and holding a strong charge when charged. These no-name batteries I could swear last longer than the original Uniden batteries.
Buying generic batteries are hit and miss, sometimes you save a good amount of money and end up with a good deal, and other times you get burned by batteries that are junk. The batteries through the Amazon merchant also came from China and were shipped through Hong Kong.
*The only small very minor issue I had with the cordless phone batteries was that they were just slightly larger/wider in the white plastic shrinkwrap that makes the battery pack than the original batteries, so I had to press firmly with the slide/locking battery cover to get it to close, but once closed the battery cover has not popped open yet on any of the 3 phones so no problem really!!!
