Tag Archives: Replacement Batteries

Now a bit about the nickel-metal hydride battery . . .

The success of the nickel-metal hydride battery has been driven by its high energy density and the use of environmentally-friendly metals. The modern nickel-metal hydride battery, for instance, offers up to 40% higher energy density compared to the standard nickel-cadmium … Continue reading

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The Nickel-Cadmium Battery

Last week we noted that the nickel-cadmium battery was the first rechargeable battery in small format and forms a standard against which other chemistries are commonly compared. Let’s now look at a summary of advantages and limitations of the nickel-cadmium … Continue reading

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So, what’s the best battery out there? It really depends . . .

Below is a summary of the strength and limitations of today’s popular battery systems. Although energy density is paramount, other important attributes to batteries include service life, load characteristics, maintenance requirements, self-discharge costs and, of course, safety. Nickel-cadmium – mature … Continue reading

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Does your battery have memory?

The term “memory” was originally derived from “cyclic memory”; meaning that a nickel-cadmium battery could remember how much energy was drawn on preceding discharges. On a longer than scheduled discharge, the voltage would rapidly drop and the battery would lose … Continue reading

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What is the best battery for wheelchairs and scooters?

Wheelchairs and scooters are almost exclusively powered by sealed lead-acid batteries. Regular car batteries are sometimes used for cost reasons, but there is a danger of spillage if a car battery is overturned. Also, regular car batteries are not designed … Continue reading

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What is the best battery for wheeled and stationary applications?

Consumer products have benefited the most from the advancements in battery technology. The size and weight reductions achieved for the high-end cell phones, PDAs and laptops, however, have not trickled down to batteries for wheeled and stationary applications in the … Continue reading

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Counterfeit cell phone batteries (clone batteries) can be dangerous

In the search for low-cost battery replacements, consumers may inadvertently purchase clone cell phone batteries that do not include an approved protection circuit. This can be dangerous. Lithium-ion packs require a protection circuit to shut off the power source if … Continue reading

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