Lithium-Ion batteries have a finite life, they slowly degrade from the day they are first made. The life of the battery will depend upon how you charge and discharge the battery and the temperature at which the battery is kept. A manufacturer will rate a Notebook battery to the point where it holds 50% of its original capacity. At this point you should consider replacing the battery.
Lithium Ion Tools
Li-ion batteries are not as durable as nickel metal hybride or nickel-cadmium designs and can be extremely dangerous if mistreated. They are usually more expensive.
Lithium Ion Tools
Lithium ion batteries can be formed into a wide variety of shapes and sizes, so as to efficiently fill available space in the devices they power, but li-ion batteries are lighter than other equivalent secondary batteries.
The energy is stored in these batteries through the movement of lithium ions. Lithium is the third lightest element, giving a substantial saving in weight compared to batteries using much heavier metals. However, the bulk of the electrodes are effectively "housing" for the ions and add weight, and in addition "dead weight" from the electrolyte, current collectors, casing, electronics and conductivity additives reduce the charge per unit mass to little more than that of other rechargeable batteries. The forte of the Li-ion chemistry is the high open circuit voltage in comparison to aqueous batteries (such as lead acid, nickel metal hybride and nickel cadmium).
One important thing li-ion batteries do not suffer from the memory effect. They also have a low self-discharge rate of approximately 5% per month, compared with over 30% per month in nickel metal hydride batteries and 10% per month in nickel cadmium batteries.
Here is a quick list of Do's and Don'ts for the care of your Li-On batteries :
Do's
When you receive a new NoteBook or Tablet PC, leave the battery to fully charge overnight.
Condition a new battery by using it until it is fully discharged, and then re-charge it fully. Doing this once a month will help to accurately calibrate your battery.
Always ensure the battery is recharged as soon as possible after it becomes fully discharged. A battery will be permanently damaged if left for an extended length of time in a fully discharged state.
Remember that a Lithium-Ion battery will slowly deteriorate; a new battery will always perform better than one that is 6-months old.
Remember that the battery half-life is rated for a certain total number of charge/discharge cycles (see your User Manual or Quick Start Guide for the rating). For example, a battery that is rated for 3 hours and 500 charge/discharge cycles, will still be considered as within specification, even if it only lasts for 1 hour 45 minutes after 500 charge/discharge cycles.
Heat is the worst enemy of a battery. Allow plenty of air to circulate around the Notebook/Tablet PC, so that the battery is kept as cool as possible when charging and also when in use. If provided, use the integrated 'legs' under the Notebook to raise the notebook and improve air circulation.
Remove the battery if storing for several months (the battery should be at approximately 50% charge or higher).
If you use a NoteBus or if charging your Notebooks or Tablet PCs in a confined space, allow for adequate ventilation in order to keep the batteries as cool as possible.
Don'ts
Do Not - Expose the battery to excessive heat or cold (i.e. outside the range of 10-35 degrees Centigrade ambient).
Do Not - Store the battery in a fully charged state (store batteries with about 50% charge).
Do Not - Allow a nearly flat battery to be unused for more than a month or so. The battery will slowly discharge until it becomes fully discharged and this will permanently damage the battery cells.
Do Not - Charge your Notebook/Tablet PC inside a carry case - the battery may overheat.
Do Not - Charge your Notebook/Tablet PC when stacked on top of each other - the battery may overheat.
Remember : Your battery is slowly degrading all the time, even if it is not used. Keeping your battery as cool as possible will slow down this degradation considerably.
Take Care Of Your Li-On Battery
Lithium Ion Tools
Nov 21, 2011 01:42:26

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>> Click here to update Black Friday prices for Makita LCT300W 18-Volt Compact Lithium-Ion Cordless 3-Piece Combo Kit <<
Black Friday Makita LCT300W 18-Volt Compact Lithium-Ion Cordless 3-Piece Combo Kit Feature
- Two-speed 1/2-inch driver-drill delivers 450 inch-pounds of max torque and weighs only 3.5 pounds
- Variable-speed impact driver provides 1,280 inch-pounds of max torque and weighs only 2.8 pounds
- Four-position flashlight with Xenon bulb runs over two hours per charge
- Compact lithium-ion battery and Energy Star-rated 15-minute rapid charger produces 430 percent total lifetime work
- Backed by three-year warranty on tools and one-year warranty on batteries and charger
Black Friday Makita LCT300W 18-Volt Compact Lithium-Ion Cordless 3-Piece Combo Kit Overview
Makita's LCT300W new combo kit offers best power-to-weight ratio for both driver-drill and impact driver. The kit includes the BDF452HW 18V Compact Li-Ion 1/2-inch driver-drill, which delivers 450 in. lbs. of efficient torque in a compact size and weighs only 3.5 pounds, the BTD142HW 18V Compact Li-Ion Impact driver, which provides 1,280 in. lbs. of maximum torque and weighs only 2.8 pounds, and the BML185W 18V Lithium-Ion rechargeable flashlight with 4-positon head pivots for greater versatility.
Black Friday Makita LCT300W 18-Volt Compact Lithium-Ion Cordless 3-Piece Combo Kit Specifications
The Makita 18V Compact Lithium-Ion Cordless 3-Piece Combo Kit is built for the pro-user who requires Best in Class cordless tools for drilling, driving and fastening in a more compact size. The LCT300W includes a compact and versatile 1/2-Inch Driver-drill, as well as a powerful impact driver that weighs just 2.8 pounds. The kit also includes a rechargeable flashlight. Each tool is powered by Makita's 18V compact lithium-ion battery and the ENERGY STAR rated Makita Rapid Optimum Charger.

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Best in Class Cordless Solutions Makita's LCT300W includes a compact and versatile 1/2-Inch Driver-drill (BDF452HW). The BDF452HW features a Makita-built four-pole maximum torque motor that delivers 450 in.lbs. of Max Torque and 285 in.lbs. of PTI Torque in a compact size. The BDF452HW has a two-speed all-metal transmission that delivers 0-450 RPM in low speed and 0-1,500 RPM in high for a wide range of drilling and driving applications.
The LCT300W also includes a powerful impact driver that weighs just 2.8 pounds. (BTD142HW). The BTD142HW features a Makita-built four-pole maximum torque motor that delivers 1,280 in.lbs. of torque, 2,300 RPM, and 3,200 impacts per minute for a wide range of fastening tasks. Makita's proprietary hammer and anvil impact mechanism is manufactured using the best raw materials with the highest quality steel and unique heat hardening process for maximum fastening and driving power.
Both the driver-drill and impact driver have a compact and ergonomic shape that fits like a glove for reduced operator fatigue, as well as a built-in L.E.D. light that illuminates the work area for more efficient work. The kit includes a rechargeable flashlight with Xenon bulb (BML185W). The LCT300W includes two 18V compact lithium-ion batteries and a Rapid Optimum Charger for increased battery and charging power--and less downtime on the job site.
Built for a Variety of Applications
The LCT300W delivers compact cordless solutions for drilling, driving, and fastening. The combination of power and performance in a compact size makes the LCT300W ideal for pro trades including HVAC, plumbing, electrical, remodeling, woodworking, and any pro contractor who requires a Best in Class engineered cordless combo kit. The LCT300W is just another example of Makita's commitment to innovative technology and best in class engineering.
About Makita's 18V LXT Lithium-Ion Cordless Tool Series
As one of the pioneers driving the cordless tool revolution, Makita changed the game with its breakthrough 18V LXT Lithium-Ion Cordless Series. Three years after its debut, Makita's LXT Series has grown from seven to over 35 tools, providing a wide range of cordless solutions for professional tradesmen. Makita also added 18V compact lithium-ion for cordless power in a more compact size. Makita's 18V Lithium-Ion batteries and ENERGY STAR rated Optimum Charging System provide several benefits over old battery technology. When compared to traditional 18V Ni-Cd batteries, Makita's 18V Lithium-Ion batteries have 40% less weight, longer run time, and five-times lower self-discharge to keep cells active and ready to use at any time.
Makita's 18V Lithium-Ion battery delivers 2,000 cycles--2.5X more than Ni-Cd. In addition, built-in shock absorbing features help protect the battery, and 16 firm-holding contact terminals deliver constant high power. During the charging process, a built-in memory chip in the battery communicates with the Optimum Charger for a more efficient charge, extending the battery life. Makita's Optimum Charger is also faster: it will charge an 18V LXT Lithium-Ion battery in just 30 minutes, and an 18V compact lithium-ion battery in only 15 minutes. Makita also offers a Rapid Automotive Charger for 18V LXT and 18V compact lithium-ion batteries that plugs into 12V DC sockets equipped in most automobiles and trucks for added mobility. Makita's growing line of LXT cordless tool solutions features a wide range of industrial-quality power tools, including driver-drills, impact drivers, impact wrenches, saws, grinders, screwguns, rotary hammers, and more. The LXT Series also offers a jobsite radio, rechargeable flashlights, and several different combo kits.
About Makita
Makita is a worldwide manufacturer of industrial quality power tools and offers a wide range of industrial accessories. Makita applies leading-edge innovation to engineer power tools that are more compact and energy efficient, yet deliver industrial strength power and results. Makita U.S.A., Inc. is located in La Mirada, California, and operates an extensive distribution network located throughout the U.S. For more information, please call 800/4-MAKITA (800/462-5482) or visit makitatools.com. Makita is Best in Class Engineering.
Warranty
Every Makita Lithium-Ion tool is backed by Makita's 3-Year Warranty that covers repair due to defects in materials or workmanship up to three years from the date of original purchase. Makita Lithium-Ion batteries and chargers have a limited 1-year warranty. Please see makitatools.com for complete details.
What's in the Box
1/2-Inch Driver-Drill, Impact Driver, Flashlight, two 18V compact Lithium-Ion batteries, Rapid Optimum Charger, and contractor bag.
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