Using your cobalt mine mobile phone in G or Dual Mode drains the battery much quicker than just GSM mode. Somewhere in the manual for your phone will be listed the battery times separately for GSM and 3G. On modern mobile phones, the GSM only life-cycle can be up to 50% more efficient.
I recently submitted an article to Smartphone and Pocket PC magazine on some of the tools I recommend for mobile productivity. I mentioned a portable scanner and printer Lithium mines Ontario that I try to avoid toting unless I know for certain I will need them. That was before CES and my discovery of an incredible pair of products from PlanOn with its DocuPen and petite printer.
On the second point, iPOD batteries are smart charging. Now, you can't use your iPOD Nano battery to help study for a test! Rather, they're smart because they can tell the charger when they're almost full. When your iPOD is charging, it charges up to 80% capacity in no time flat. Then, the iPOD battery tells the charger to slow down, so the charging process goes from warp speed to snail's pace. This ensures that the battery doesn't overcharge, and makes certain that you're spending your time with your music, and not spending your cash on iPOD batteries.
When it's time to buy a new lithium ion battery, be sure you're buying one that's new (as in recently produced). Just like fruit has a shelf-life, so do batteries and just like you want to buy fresh produce, you also want to invest in "fresh" Lithium battery stocks ion cells. Check the date-code on the battery or packaging to ensure you're not buying a pack that's been degrading for a year on some shelf.
I was delighted when I learned that now, thanks to the Lithium-ion battery (Li-ion); this is no longer the case. Cordless drills are used today not only by homeowners but also by Home Improvement professionals, Woodworkers and even on large construction sites.
Part of the testing was not just to increase the mileage of every gallon, but to create reverse power flow. This is where the battery then sends power to the electric grid. In the future, the powerful vehicle batteries could be the backup for home appliances during power outages. Chrysler hopes to be the first to release a vehicle with electric grid connectivity.