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Canon DC DC100 Camcorder Silver w/ Extras 3 pcs of Battery 12 pcs of DVD/RW Disc
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US $59.00

Dual Band TG-UV2 VHF UHF radio + earpiece+extra battery
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US $106.00

Sony DSC-TX10/Pink + Extra Battery NP-BN1
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US $239.99

Wouxun KG-UVD1P + USB cable + 1.7A Extra Spare Battery
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US $139.90

Blackberry 31-0973-01-Rm Blackberry Micro Usb Extra Battery Charger For D-X1
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US $36.73

2 Invisible Fence IFA 12 indoor transmitters 3 receivers 3 collars extra battery
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US $265.00

CANON ZR10 CAMCORDER SILVER + REMOTE+ EXTRA BATTERY AC POWER CORD + CHARGER
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US $55.99

NEW VECTOR RECHARGEABLE FLASHLIGHT WITH EXTRA BATTERIES
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US $29.99

Focus Enhancements Firestore FS-4 Portable DV Recording Device w/ Extra Battery
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US $213.61

Canon XL 2 Camcorder with Extra Battery
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US $1,034.00

Canon EOS Digital Rebel XTi 10 MP Silver Kit with Extra Battery, 2 2G Cards, EUC
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US $400.00

Canon PowerShot SD950 IS Silver + Extras (MEMORY CARD /EXTRA BATTERY)
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US $89.00

MOVADO 1881 WRISTWATCH NEW LEATHER BAND EXTRA CLEAN FRESH BATTERY
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US $195.00

Mugen Seiki MBX-6T, M-Spec With Two Bodies And Extra Parts ,rec.battery,switch
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US $499.00

Samsung Fascinate-2GB -Black (Verizon) w/ extra battery charging station
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US $110.00

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How Low Can You Go With Your Laptop Battery

Without any question, the fastest way to suck the life out of a battery is leaving your brightness high. Turn it down as low as you possibly can without needing to up your glasses prescription. On my Vaio, I can select from one of 8 levels. During one test, at brightness level 3 my system reported 60% full, with 3:52 (all times are hours:minutes) of life to go. I switched up to level 5 and in 17 minutes of use, I was down to 52% full, with 3:06 to go. In other words, 17 minutes used 46 minutes worth of battery (all other variables were held constant). You can even be so bold as to lower your brightness all the way down when sitting idle for a minute or two (for example, if you are writing a long blog post and pause to clarify your thoughts before typing).
Dont use any external devices. USB and PC-Cards (aka PC-MCIA) use your battery to function, even when you arent using them! Have an EVDO card or maybe a USB mouse? Remove them if you can. Even a memory card reader in your PC-MCIA slot uses power just by being in there. The effect varies based on the type of device, but even a few minutes here and there (as youll see) add up significantly. Single-task, not multi-task. The more you are doing at the same time with your PC, the more memory and CPU usage increases. Both of which directly use up HP Laptop Battery. Close any applications you arent using, even the small ones. When doing some experimentation, I found it more efficient to run a single application at a time, then close it and open a new one when ready to move on. While your hard drive uses the battery too, if you are doing anything productive you are probably hitting the drive on a regular (even if infrequent) basis anyway. Keep it cool. You can take a page out of the extreme gamers handbooks, and have your system perform more optimally by keeping it cool. Make sure your air vents (inflow and outflow) arent blocked by anything, which often occurs by poorly positioning your laptop on your lap (which is known to have some other side-effects too, by the way). Heavy CPU and memory use all contribute to heat as well, hence my comment on multi-tasking above.

Shut down unused services. MSN Messenger, Google Desktop Search, QuickTime, wireless managers, etc. Theyve all gotta go. You probably arent going to use them, and they all eat up valuable resources. Especially things that scan anything. For advanced users, I also recommend launching Windows Task Manager and getting rid of anything not used in-flight. In fact, I put together another little text file with a list of all the services I dont use, and I go down the list and manually shut down each one. If you really want to get this one right, a little bit of research is in order. While online, I launched the task manager (control-shift-escape) and for each service that has my User Name, I googled it. There are a few good web sites out there which chronicle what all these mysterious services do, and you should be able to figure out which you need, and which you dont. Important warning: if you arent comfortable with this lingo, you should skip this step, or get some techie friend to help you out. Less important warning: you may end up in a situation where you need to do a reboot after you get to your destination.

Hibernate optionsDo Hibernate, Do Not Suspend. Ive found that my Vaio tends to use way too much battery when in suspend mode. Not sure why, but the instant-on effect isnt worth the extra 30-60 seconds it takes to get out of hibernation. Furthermore, the minor hit to the hard drive is unlikely to have a significant impact to your overall battery time. Also, if you werent aware, going in and out of hibernate is much better than a full startup/shutdown sequence. Note that you might need to manually enable Hibernate as a system option (once you have, the quick shortcut into it is windows button followed by U followed by H, and some PCs will have even faster shortcuts available as well). If you make a run to the bathroom, however, thats worth a quick Standby, but anything over 10 minutes and Id Hibernate instead.
Advanced power optionsTweak advanced settings. Virtually all laptops manufactured in the past 24 months have some advanced power options. Mine, for example, allows me to go into 16-bit color mode, force the CPU into a power-saving mode, disable my LAN port, and more. This might seem obvious, but if you arent doing it already, go find these settings (probably in the control panel, or possibly through custom software provided by your manufacturer) and get aggressive with them! If you dont have any extra control, one good extra tip is to manually force your screen into lower color modes, as they use less CPU overall and can make a huge difference in the long run. While you are at it, you might want to change your Alarms settings, as many laptops default to shutting down with as much as 10% of your acer laptop battery still available (my Low Battery is just an alert at 5%, and my Critical is force hibernate at 1%)!

Choose Wisely. Good: Word, Excel, Outlook, Text Editors. Bad: anything by Adobe (you think Microsoft has bloatware, have you noticed how long even Acrobat takes to launch these days???), all Google plugins, many Widgets, Gadgets, etc. All I can say is pick your battles wisely. 50 minutes of a video game ate up over 2 hours of my battery time, whereas writing email or documents tend to use up less than what Windows predicts (about 105% of the estimate on average). Ive also found WinDVD is right on the money for Dell Laptop Battery consumption, and Windows Media Player is a little power-hungry (by the way, if you are using your laptop to play music make certain you disable visualizations). On that note, dont use your laptop to play music unless absolutely necessary, its a real resource killer.

Watch That Hard Drive. I just wrote, dont play music, but the reason is mostly about your drive. The more it spins, the more power it takes. Make sure youve set your basic power option to turn off your drive relatively fast, but not necessarily too fast. Some drives use more power getting started than staying running for short periods of time. I set my Vaio to turn off the disk after 3 minutes of inactivity, you may want more, you may want less. At the end of the day, if you are doing anything that prevents the hard drive from spinning down ever, you are draining your battery more than needed.

Power alarmsLike a Boy Scout, Be Prepared. I make a point of configuring my flight mode prior to getting on the plane. It may only take 5-10 minutes to get your system setup properly, but that just eats into your battery life if you wait to do it on the plane. Once done with all the settings, the last thing I do before unplugging my power supply is hibernating the PC.

I hope some of these tips help you out. Personally, I add around 30 minutes (or more) to the longevity of my standard battery (3:30 on average now), and almost an hour on the extended one (6:30 or so). This gives me almost 10 hours of combined life (4 full DVDs guaranteed), which suits me quite well.

I am on the planes a decent amount of the time (100,000 miles by late May) and tend to spend a chunk of my flights using my laptop. Most of the time its productive, but it can also include a DVD or the occasional game (either Nethack or Battle for Middle-Earth 2, which are obviously similar). When I was a-hunting for a laptop, battery life was a key criterion in my selection process, as was weight. While I like my Vaio VGN SZ-160P, the standard battery was lasting about 3 hours (the extended life clocks in under six hours before my tweaks), not enough for the SFO-JFK route (now switching to SFO-EWR as a default due to Manhattan traffic, which is a huge bummer because Uniteds P.S. flights have standard AC outlets on board).

So I did a lil Googlin for tips on extending battery life, and I found them all pretty, well, lacking. Stuff like dont try to do real-time 3d rendering or fully charge up your battery before flying. One of them even said buy an extra battery. Not exactly helpful (Sonys tips are in the picture on the right). The most common tip that Ive found truly deceptive is on disabling wireless: many claim it makes a huge impact to disable it, but personally Ive only noticed a minor difference. I do in fact disable it (and Bluetooth) but on my Vaio the difference was about 10 minutes over 3 hours (but as I state below, it all adds up).

Alas, Ive gone and done a lot of experimenting and have a list of my tips to really maximize Battery life for my laptop.

Battery remaining timeKey to this process is having some good methodology. While testing, I kept a plain text file on my Desktop (creatively called battery.txt) tracking the real clock as well as Windows expected battery life. The problem with the Windows tool, is it really just tells you the current state of the battery based on the current system activity. This means if you start with 3 hours remaining then spend 30 minutes doing something that rapidly consumes the battery, youll be down to 2 or less. In other words, you need to track the actual history/lifespan of your battery if you want to get the best information out of your system. You can check out my little tracking file for inspiration. For more tips on Laptop Batteries from all the leading brands or to find your specific Laptop battery visit www.global-ecommerce-batteries.com We have some great tips and the best prices online for all makes of Laptop and Notebook Batteries. Don't get caught out in the middle of an important task just because there are no power sockets available. Carrying a spare Laptop Battery with you could save your job. Visit us now at http://www.aus-battery.com for the best discount prices online.

About the Author

www.epay-battery.com is an operated online retailer of high-quality electronics accessories, specialising in acer laptop battery and laptop ac adapter, battery chargers, camera batteries, camcorder batteries, milwaukee power tool batteries and motorola mobile phone batteries. Battery company has quickly grown to one of the top online USA retailers of electronics accessories, offering generic product brands that provide the same quality as the big brand names but at half the price.