Sony Vaio P battery life: Standard vs. Extended


When it comes to testing battery life, I've always been a bit of a masochist. A few years ago, I spent over 150 exhausting and boring hours draining/charging the standard and extended batteries for my Sony Vaio UX180P and an external DAP charger.

It wasn't fun or particularly enlightening, but here I am again. This time around, I've got some battery life figures yielded from the 2-cell standard and 4-cell extended batteries for my Sony Vaio P. I think you'll be surprised by the results.

Here are the battery details:

Standard Battery (VGP-BPS15)
Extended Battery (VGP-BPL15)
2-cell 4-cell
7.4V 7.4V
2100mAh 4200mAh
16Wh 31Wh
4.9 ounces 8.9 ounces
charges in about 2.5 hours charges in about 4 hours
$89.99 MSRPir?t=pocketables 20&l=as2&o=1&a=B001PR21Q8 - for some reason we don't have an alt tag here $129.99 MSRP

Compared to the 40+ tests I performed on the just UX's standard battery back in 2006, the 12 combined tests I did for the Vaio P's batteries are far from being exhaustive. There are many other scenarios and conditions I could have tried, but I chose what I think are two of the most important ones: WiFi and video playback.

My internet usage (Firefox 3) during the tests is described below:

  • No Flash video – Google Reader, multiple email accounts, website comments, Twitter, forum participation, random googling, various website visits
  • Only Flash video – Hulu, UStream, Blip, and YouTube videos all viewed in windows (not full screen)
  • 1 hour Flash video – Same as "no Flash video" above but with 30 minutes of UStream and 30 minutes of YouTube videos

Standard Battery
Extended Battery
WiFi only, optimized mode,
4/9 brightness, no Flash video
2 hours, 52 min 5 hours, 45 min
WiFi only, optimized mode,
4/9 brightness, only Flash video
2 hours, 25 min 4 hours, 41 min
WiFi only, high performance mode,
9/9 brightness, 1 hour Flash video
2 hours, 03 min 4 hours, 28 min
WiFi only, battery saver mode,
3/9 brightness, 1 hour Flash video
2 hours, 37 min 6 hours, 08 min
No wireless, optimized mode,
4/9 brightness, mid-vol, earphones,
1Mbps XviD (640 x 336),
full screen, Media Player Classic
2 hours, 49 min 5 hours, 40 min
No wireless, optimized mode,
4/9 brightness, mid-vol, speakers,
6.5Mbps WMV (1280 x 720),
full screen, Windows Media Player
2 hours, 07 min 4 hours, 25 min

Note: I'll try to test WWAN, Bluetooth tethering, and maybe GPS runtimes later and update the chart. I've only been using the P at home with WiFi, though, so it may be a long time before I get the numbers up.

Considering how unobtrusive the extended battery is when attached to the Vaio P (photos here) and keeping in mind that it's only a 4-cell, I'm really impressed with it.

See more Sony Vaio P features and reviews.

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Jenn K. Lee

Jenn K. Lee is the founder of Pocketables. She loves gadgets the way most women love shoes and purses. The pieces in her tech wardrobe that go with everything are currently the Samsung Galaxy Note II, Sony Tablet P, and Nexus 7, but there are still a couple of vintage UMPCs/MIDs in the back of her closet.

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