In theory, yes, rechargeable flashlights are more economical than regular flashlights, however you have to be careful to not overcharge your batteries otherwise they will run out quickly
You can use powered or rechargeable batteries for LED flashlights. Surefire.com is a really helpful website to get more information on it. Regular flashlights are more power hungry.
This depends on what you are using the batteries for. If you are using a device that is used on a regular basis, rechargeable batteries are the best choice. If it is a device that is rarely used, regular batteries would be the best choice.
Rechargeable batteries are getting more and more popular. You can purchase them anywhere that sells regular batteries, except gas stations usually. Try going to Wal-Mart.
LED (Light Emitting Diode) flashlights tend to last longer and they do not omit the yellowish coloring that an incandescent flashlight does. LED flashlights will also be lighter in weight compared to incandescent flashlights. Although the cost of LED flashlights can be a bit higher than a conventional flashlight, one would find it worth the extra cost due to it's higher energy efficiency and longer lasting life.
"economical" has no comparative or superlative form. You would say "more economical" or "most economical."
Regular Acuvue lenses are much more economical than the one day Acuvue lenses. Both are around the same price per contact however one day contacts are changed daily while the regular acuvue lenses are chanced once every two weeks.
If classified by light source, there are 3 types of flashlights; they are bulb, HID and LED.
Energizer does make quality rechargeable batteries. You can find out more about them at their website http://www.energizer.com/charging/rechargeable-battery-charger/Pages/default.aspx
Rechargeable batteries are an excellent alternative to regular alkaline batteries. Although they may initially cost a little more than regular batteries, the money you save in the long run definitely outweighs the initial price difference.
LED flashlights are effective. They use powerful white-light-emitting diodes, and are more efficient than incandescent lamps, in terms of battery usage.
Well you probably don't want to spend more money than necessary, most consumers believe rechargeable battery packs are worth the cost. According to reviews on Amazon.com, over 95% of buyers rated the packs very favorably.
The price of a Maglite Flashlight depends on the style and the size of the Maglite. Maglite produces many styles of flashlights. Some flashlights produced by Maglite are only a few dollars. Some Maglite Flashlites cost more than 30.00$ (USD).