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Product Description

  • Description
  • Warranty


Energizer 393/309 Silver Oxide Watch Battery - 5 Pack

Incredibly Efficient

The compact and capable Energizer 393/309 Silver Oxide Watch Battery is one of the safest and long lasting coin cells available!

Thanks to its incredibly stable Silver Oxide (Zn / Ag2O) chemistry, the cell is able to hold a charge of 75 mAh, more than enough to power your watch, remote starter, hearing aid, or other small electronics for an extended period of time.


With a shelf life of up to 6 years, these batteries are perfect to keep around the house as spares.

Features and Specifications:

  • Perfect for use in watches, keyless entry devices, hearing aids, etc.
  • Mercury-Free for safer use
  • Shelf life of 4 to 6 years
  • Battery Size: 393/309
  • Battery Chemistry: Silver Oxide (Zn / Ag2O)
  • Nominal Voltage: 1.55 V
  • Capacity: 75 mAh
  • Diameter: 0.311" (7.9 mm)
  • Height: 0.188" (4.78 mm)
  • Weight:0.04 oz (1.12 g)

Associated Battery Sizes: All Brands, 393/309 Button Cell, Duracell D393, Duracell D393, Energizer 393, Goldpeak 393, Maxell SR754W, Panasonic SP393, Rayovac 393, Renata 393, Sony SR754W, Timex F, Toshiba SR48W, Varta V393.


You are protected by our 30 Day Money Back Guarantee and Specific Warranty Options: Tera Pump Fuel & Liquid Pumps: 1 Year Warranty. BRS Super Battery: 2 or 10 Year Warranty. BRS Super Battery Lithium: 3 Year Warranty. Power Wheels Batteries and Chargers: 6 Month Warranty. Please contact us for all other product specific warranty options.

I have been using this pump all summer to keep my boat, lawn tractor and a whole bunch of other stuff filled up around here. I still use 5 gallon containers for their portability and even with 10 of those I'll have to fill them twice to get through the summer. This pump has been great for my needs. If you are sick and tired of having to hold a 5 gallon container of fuel in the air while attempting to get those funky nozzles to work, buy this pump.


I have two of these and found them really useful. No more spillled gas and pumps fast!

K. Fairfield

So far it’s working as well as I had hoped. Nothing is perfect when trying to transfer gas, but this does a very decent job. You need to make sure to lift the nozzle and hose up at the end of the fuel transfer to allow any residual fuel to run back into the tank or it will dribble out all over. It empties most of a five gallon gas can in a couple minutes without having to lift and hold the can up which is exactly what I wanted.

V. Thomas