Something about battery life

Let’s talk about something much more interesting and less irritating than the Internet Explorer vulnerabilities, we are?

There had been a few questions about batteries in my new HP Pavilion dm1 1020ez, with the Su2300 Celeron Dual Core CPU. After a few days, I can use to something a bit more Sony VGP-BPS8 . For comparison, I am with my HP Pavilion dv2-1020ez, which has an AMD Athlon CPU Neo. The batteries seem to be about equal - both have 6-cell Li-Ion Sony VGP-BPS8A Sony VGP-BPS8B battery packs. I know that’s not terrible or specific scientific, but I can not find a better information on the HP website right now. The screens are also slightly different, the dv2 has a 12.1 “1280×800, while the DM1 has a 11.6″ 1366-768, but I suspect that are close enough that it makes no significant difference in the life of the battery.

What I have found is that the longer dm1 for about an hour, that is something for me, “typical use” as the dv2 well. In my case, “typical” means that the system is continuously active, the screen saver rarely, and the drive will rarely spin-down. Under these conditions, the dv2 good for about 2.5 hours, and the dm1 about 3.5. Of course, this can by as much as half an hour or so different, but the VGP-BPS9 VGP-BPS9/B relative performance remains about the same as the dm1 takes about 30% longer than the dv2. I think that is most of them up to the difference in the CPU, but I can not prove.

For more information about the new DM1. There is something funny about the keyboard / touchpad, so the pointer occasionally jumping wildly, while I type. I can not say whether this is a bug in my system (I think so and hope so), or a general problem (I hope not). I’ll probably take to repair or replacement of the week. Other than that, I still really like it. In addition to longer VGP-BPS9/S  Sony VGP-BPS9A/B battery life, the DM1 is much faster than the dv2 or any of the other netbooks / sub-notebooks that I have. Mandriva 2010.0 still seems to work flawlesly it, and Ubuntu (and its derviatives) work just as well, after I installed the Broadcom STA wireless driver. I have had no luck at all with the b43 driver, I suppose, as is the wireless adapter is a bcm4315, instead of 4311/4312 that the b43 is known, is to work with.

The bottom line is that I like the dm1 so much that I’m reluctant to back him, even if the keyboard / trackpad Dell Latitude D620 Battery problem is very irritating. It has quite a while since I picked up a new system that I immediately liked so much better than anything else around.

MacBook Pro All-Day Battery Life: Eight Hours

MacBook Pro All-Day Battery Life: Eight Hours

It’s funny. When Apple announced it’s new sealed-battery Macbook Pro Series battery last week, almost nobody complained. Remember the fuss about the iPhone’s non-removable battery? Or the MacBook Air? Or the 17” MacBook Pro? It seems like people have finally realized most users hardly ever have to swap out a battery, and if you need some extra juice then an external powerpack works fine.

It seems that Apple wasn’t just trying to annoy its customers, either. The new Macbook Pro 15 battery have been tested by AnandTech and the batteries last up to (almost) 50% longer. This is without any appreciable increase in weight. How has Apple managed such a thing? Tessellation. The picture above, from Apple, shows that you can squeeze a lot more Macbook Pro 17 battery into a small space if you don’t waste that space with gaps. The new batteries are square: the old ones cylindrical.

The 13” gets a decent 30% boost, too, but the winner is the 15”. Anandtech’s test had the machine running for a full eight hours before it died: 8.13 hours in fact, running a light test involving Flash-less web browsing. More strenuous tests cut this time down but as Macbook Pro 13 battery only claims seven hours of life, this extra “free” hour is pretty impressive. All day computing in a regular, full-sized notebook? You got  Apple laptop battery.