MSI Wind 9 Cell Battery

Since I was dissatisfied with the short battery life of the OEM 3 cell battery which came with my MSI Wind netbook, last week I ordered a 9 cell replacement from Battery1Inc.com, through Amazon.com.  The battery arrived on Friday.

The 9 cell battery is physically larger than the OEM 3 cell.  It protrudes from the bottom of the case about an inch and adds about a half pound to the machine's weight.  It's still quite compact and portable, and the increased battery life is worth the increased weight and bulk IMO.

Battery1Inc.'s website states that they are shipped in a discharged state.  However, when I plugged it in XP showed the battery as being 100% charged.  I ran the netbook for about 2.5 hours on battery power, with the remaining life shown by XP fluctuating.  So, I plugged it back in to ensure a full charge, with the intention of testing the battery later.

It's late.  I unplugged the machine and fired it up at 0945 this morning.  XP's battery monitor reported 7:31 remaining.  A few minutes later it reported 5:30 remaining.  A few minutes after that it showed 6:10.  I'm wondering if XP is not able to accurately estimate battery life over a certain period, or it if there's some problem communicating with the battery.

In any event, I'm going to try using the Wind today until I get a low battery warning.  I'll post an update later.

Edit at 1906:  After using the Wind off and on throughout the day, I finally got a low battery warning at 1835. If this kind of performance lasts, I will be very happy, indeed.

Edit:  Here's the battery I purchased:

Replacement Netbook Battery for MSI laptop Wind U100/ BTY-S11, BTY-S12, 3715A-MS6837D1, 14L-MS6837D1, 6317A-RTL8187SE, TX2-RTL8187SE /9-cells Black 7200mAh High Capacity