/faq

What does internal resistance mean for a battery?

Internal resistance indicates how easily a battery can deliver electrical energy. In addition to voltage (V), internal resistance — expressed in ohms (Ω) — plays an important role in battery performance.

A battery with low internal resistance can deliver energy more efficiently and handle higher current demands better. Batteries with higher internal resistance experience more energy loss and are generally less suitable for high-power applications.

Battery types with relatively low internal resistance include:

Nickel-Cadmium (NiCd)
Nickel Metal Hydride (NiMH)
Alkaline
Lithium Photo
Mercury Oxide

Battery types with relatively higher internal resistance include:

Lithium primary batteries
Zinc-air batteries
Silver oxide batteries
Zinc-carbon batteries

/ faq

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