The Best Cordless Drill Batteries

Written by ronnie daniels Google
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The Best Cordless Drill Batteries
Cordless drills (Turn of on screw image by Marek Kosmal from

Cordless drills use a rechargeable battery that is either nickel based or lithium ion. The best cordless drill battery for your drill is determined by several factors. The drill you purchased may only use one type of battery. If you have a choice, you should consider how often you use the drill and what you want to spend on a rechargeable battery pack. Nickel-based batteries cost less than lithium ion batteries but have a shorter charge life due to low energy density.

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Nickel Cadmium

Nickel cadmium batteries are most often used for cordless drills and other cordless power tools. These rechargeable batteries have a long shelf life and can be charged and discharged over 1,000 times. Nickel cadmium batteries are the least expensive rechargeables and can be recharged in an hour. Because of its fast recharge time and durability, the nickel cadmium rechargeable battery is well suited to power tool usage. Nickel cadmium batteries work well under different temperature extremes.

The major drawback of Nickel cadmium batteries is low energy density which necessitates the need for more frequent recharging. Another negative for nickel cadmium batteries is the toxic chemicals they contain. Because cadmium is toxic to humans these batteries must be recycled rather than discarded. A European Union edict, 2006/66/EC, restricts the use of nickel cadmium batteries and the way they are disposed of.

Nickel cadmium battery
Nickel cadmium battery (battery image by javarman from

Nickel Metal Hydride

Nickel metal hydride batteries are safer than nickel cadmium batteries because there is no cadmium inside. Instead, the anode is a metal alloy that absorbs hydrogen. These batteries are also sensitive to temperature extremes and lose charge quickly in cold temperatures.

Nickel metal hydride batteries cost more than nickel cadmium batteries but have a greater energy density and can be used longer between recharges. When worn out, nickel metal hydride batteries must be recycled because the anode contains cobalt.

NiMH battery
NiMH battery (Hand yelow drill isolated image by Marek Kosmal from

Lithium Ion

The lithium ion battery offers advantages over nickel-based batteries, but has disadvantages too. With twice the energy density of nickel-based batteries, the lithium ion battery pack weighs less and works longer than nickel-based batteries. The lighter weight makes the drill easier to use for long periods, putting less strain on hand and arm muscles. Lithium ion batteries need to be recharged less often but have a much shorter shelf life than nickel-based batteries. Lithium ion batteries are also more expensive.

The Best Cordless Drill Batteries
Lithium ion could power the future. (future city 2 image by Paul Moore from


Because they are more durable, charge quickly, cost less and operate well under wide extremes of temperature, nickel cadmium batteries are an excellent choice for cordless drills and tools. Nickel metal hydride batteries offer longer time between recharges but have a shorter life than nickel cadmium batteries. Lithium ion batteries are lightweight and easy to use, but their short shelf life and high cost are negatives.

The Best Cordless Drill Batteries
Cordless impact drill (drill image by Vladislav Gajic from

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