Ratings & Reviews HP MU06 6-Cell Battery

is this a original battery,,need more help..

I faced so many problems with this battery from the day one. I have some queries to would like share with you. 1. On the battery they mentioned it's a 4200mAh. But you mentioned it on snap deal description it's a 4400mAh. Why this difference came? 2. Am getting 1.01hrs backup with this battery. What's wrong with the battery or with my laptop? 3. In the battery check-up (HP assistant support), it is showing calibrate. I followed as it mention on the help to get out the calibrate issue. But still it is appearing. Why it is like that? I enquired in HP care centre, they suggested please repeat the calibrate process for three times, if same error appears please replace the battery with calibrate checked one. I did what they said but still same error. 4. The actual battery capacity is 4200mAh but in order to actual scenario its only 3974mAh (83%). Where is the remaining capacity gone? I know that battery never showed exactly full. But my old one had 44oomAh its capacity is 4200mAh. Why my old one shows like that? 5. There are totally four cells description in batter check. Out of four only three cells showing values remain one showing zero. What's wrong with the fourth one? 6. At the level 0f 20% battery, it suddenly drains to 10% and become dead. Why within two minutes only 20 to 10 % and zero? Why it is happening? 7. I got the battery on 11th April 2014 but in battery life days showing 88 days. How it could be possible?