[3.6v Lithium Battery 19000 mAh capacity non-rechargeable
[ D Cell 3.6 volt Batteries with at least 10-year shelf life] you can store for emergencies or use immediately so you're never left powerless
[Lithium D size batteries] Superior operation in low and high temperature environments(-55 to +85 degree).
[The Lithium battery ER34615] Works with a variety of devices including Memory backup: CMOS memory, computer backup, make up mirror and RTC(real time clock)
[Service & guarantee] 24/7 Real and friendly customer support if you have any question please feel free contact us .