Alkaline battery D 1.5 V

Very high-capacity 1.5 V D-size alkaline battery

The D-size alkaline battery (LBD) is the largest of the 1.5-volt cylindrical batteries, designed for power-hungry devices that require very high capacity and long runtime. It is the size used in large flashlights, lanterns, powerful radios and various high-consumption handheld equipment. Thanks to its large size, the D battery stores far more energy than a C or an AA, ensuring extended runtime even for the most demanding devices.

Alkaline technology provides a stable voltage and a long shelf life, a valuable asset for backup devices such as large emergency flashlights or lanterns that must stay ready for a long time without use. Keeping D batteries in reserve in an emergency kit is a sensible precaution.

Benefits of the D-size alkaline battery

Beyond its capacity, the D battery is the go-to choice for power-hungry devices.

Very high capacity for power-hungry devices

Its large size stores far more energy than a C or an AA, greatly extending the runtime of large flashlights, lanterns and powerful radios.

Stable voltage and long shelf life

Alkaline chemistry holds a stable 1.5-volt output and offers a good shelf life, ready to use when needed.

Worksites and sectors where this battery is required

The D-size alkaline battery is used everywhere power-hungry devices must stay powered:

• Homes and emergency kits for large flashlights and backup lanterns.
• Workshops and worksites for powerful lamps and high-consumption handheld devices.
• Stores, schools and institutions for D-powered handheld equipment.
• Outdoor and camping activities for lanterns and radios.
• Any safety kit that should hold spare D batteries.

Use and storage of the D-size alkaline battery

Insert the battery according to the polarity (+ and −) shown in the device's compartment, and replace all the batteries in a device at the same time rather than mixing a new and a used cell. Store spare batteries in a dry, temperate place, away from metal objects. Remove the batteries from a device unused for a long period to avoid any risk of leakage, and recycle used batteries through local programs.

FAQ about the D-size alkaline battery

What is the difference between a D and a C battery?

Both provide 1.5 volts, but the D is larger and stores more energy, for more power-hungry devices. The sizes are not interchangeable.

Which devices use a D battery?

Large flashlights, lanterns, powerful radios and high-consumption handheld devices are among the most common uses.

How can I extend battery life?

Store them dry and cool, and remove them from a device that will be unused for a long period.

Suggested other batteries and complementary equipment

Depending on your devices, it can be handy to keep different battery sizes in reserve; also see a C 1.5 V alkaline battery (LBC), an AA 1.5 V alkaline battery (LBAA), an AAA 1.5 V alkaline battery (LBAAA), a 9 V alkaline battery (LB9), an Exit sign with battery (LUMB), a replacement battery (LBLUM), a single 9 W spotlight (LUMT1) or a 6 V 36 W unit (LU362MT). Under "Accessories" at the bottom of the page.

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