Coin battery: 1.4 volts, zinc-air, 33 mAh, Height: 2.13 mm,
Diameter: 5.75, Weight: 0.19 grams, Cross reference to: Duracell - none, Eveready - none, Ray-O-Vac - 5
AE, Amplifier - AC5, Activair - 5 AE, Proline - 5 A, Clear - none,
IEC - PR 63 Batteries per pack: 6 SR/LR/AG/SG Button Cells: IEC SR series batteries are silver oxide chemistry and provide
1.55 volts, while IEC LR series batteries are alkaline chemistry
and provide 1.5 volts. Similarly, SG prefix batteries are the
silver oxide chemistry version of the alkaline AG prefix. Since
there are no 'common' names beyond the AG designation, many places
use these four designations interchangeably for the same sized
cell, and they will all fit and work. The only difference is that
silver oxide chemistry typically has 50% greater capacity than
alkaline chemistry. In low-drain devices like watches (without
lights) this isn't very important, but in high-drain devices like
blinkies, key chain flashlights, or laser pointers silver oxide is
preferred. Often the free 'demo' batteries that come with a device
are the alkaline version. Round button cells have heights less than
their diameter. The metal can is the positive terminal, and the cap
is the negative terminal. Button cells are commonly used in
electric watches, clocks, and timers. IEC batteries that meet the
IEC standard for watch batteries will have a W suffix. Other uses
include calculators, laser pointers, toys, LED "blinkies", and
novelties.| Item No. | System | Voltage | Capacity | Millimeter | Each piece weight(gram) | JAPAN | U.S.A Switzerland | RAY-O=VAC | Germany | | | AG0 | L521 | Alkaline | 1.5V | 10mAh | 5.8×2.1 | 0.28g | | 379 | RW327 | V379 | AG0 | | AG1 | L621 | |
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