Maxell 348 SR421SW - 2 Packs of 5 Batteries

Maxell 348 SR421SW - 2 Packs of 5 Batteries
Maxell 348 Silver Oxide Batteries SR421SW 1.55v 12mAh Genuine Made in Japan Fresh Powerful Watch Battery
Item Specifications
Our PriceUS$22.94
SKU103139
Weight0.0188 lbs.
Voltage1.55V
Capacity12
ChemistrySilver Oxide
BrandMaxell
UPC025215736865
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Superior Maxell 348 SR421SW Micro Silver Oxide

Superior Maxell Micro Silver Oxide SR421SW 2 Packs of 5 Batteries

Do not use (inherently low performing) alkaline batteries in place of silver oxide in any timepiece.

Made in Japan
Genuine Maxell Hologram Anti-Counterfeit Packaging (other package is not genuine)
Dimensions 4.8mm Diameter x 2.1mm Height
1.55 volts 12 mAh
Mercury Free
This is a primary non rechargeable disposable battery

The 348 is a long life silver oxide chemistry with non-declining power output; alkaline batteries of the same 1.5 voltage start at 1.5 and at the half life are at .8 volts, silver oxide start at 1.55 volts and maintain the voltage until expiring. This is why silver oxide batteries are always used in watches, insulin pumps and sniper scopes or mission critical situations. Never use alkaline batteries for any device requiring a steady constant voltage. A watch with declining voltage cannot give the correct time.

Fits and Replaces: This is from the American Watchmakers-Clockmakers Institute 2008 Edition Handbook "Battery Number System". This Battery is cross-referenced as: AWCI S72, Energizer 348, UCAR 348, Eveready 348, Maxell SR421SW, Panasonic SR421SW, National SR421SW, Seiko SR421SW, Toshiba SR421SW


Fits and Replaces:

1.   Citizen 280-77
2.   Interstate Batteries AWAC5090
3.   Pulsar WAC5090
4.   Pulsar Y151
5.   Pulsar Y151A
6.   Seiko 1F21
7.   Seiko 2J30
8.   Seiko 2J31
9.   Seiko 2J41
10.  Seiko 2J80M
11.  Seiko SBA6
12.  Seiko Y151
13.  Seiko Y151A
14.  Sportline Pedometer 4144
15.  Whittnauer Ladies Astor Model 11P06
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