The Best Cordless Drill Batteries
The Best Cordless Drill Batteries
Nickel metal hydride Cordless Dril 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.
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