Answers. 1  It relies upon on the chemistry of the battery. a typical Zinc Carbon cellular has a voltage of a million.5 V, at the same time as a Nickel Cadmium rechargeable cellular will produce a million.2 V . A Lead acid cellular produces around 2 V, that's why 6 are blended in sequence to make a 12V automobile battery.
Tips for storage. 1  Unopened canned salmon can be stored in the cupboard at room temperature for up to 3 years. 2  Once opened, remove salmon from the can, store in an air tight container in the fridge and use within 3-4 days.
Mayonnaise is still good for a month after its expiration date (unopened) and up to four months after opening. Eggs, properly refrigerated, should last at least three to five weeks after the sell-by date. A. Those pesky expiration dates on the food you buy may be largely meaningless. Thatâs the latest word from the U.S. Department of Agriculture in a public service video that says food still remains safe up to 18 months after the âsell-byâ date on the package.