What type of battery is used for the SKL?

• A. Lithium-ion
• B. Nickel-Cadmium
• C. Nickel-Metal Hydride
• D. Lead-Acid

Answer: (A)

Battery selection for a compact field device like the SKL hinges on delivering enough run time without adding undue weight, while remaining reliable across field conditions. Lithium-ion cells provide the best energy per kilogram among common chemistries, so you get more operation time with less bulk. They also offer favorable cycle life and low self-discharge, meaning the device stays ready after periods of storage and use. Nickel-cadmium works well in some rugged situations but suffers from memory effects and heavier weight for the same energy, plus cadmium disposal concerns. Nickel-metal hydride improves on NiCd’s energy density but still isn’t as light or efficient as lithium-ion and can have higher self-discharge. Lead-acid is simply too heavy and bulky for handheld equipment. For these reasons, lithium-ion is the best fit for powering the SKL.