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Watch Battery Replacement

Why travel to find the right watch battery near you when you can get your exact size of watch battery replacement in your favorite brand shipped right to your door. Microbattery.com is the leading watch battery replacement center, as we carry more watch batteries than any other online seller in the United States. We carry watch batteries from the leading silver oxide manufacturers like Murata, Renata, Energizer, Duracell, and Seizeken. 

For high quality watch batteries at the right price, you need not look any further than Microbattery.com for you watch battery replacement. We bring you an enormous selection of fresh watch battery replacements from among the finest made silver oxide batteries—Energizer, Maxell, Renata, and Sony. As one of the largest micro battery distributors in the world, our huge wholesale division extends to more than 25 countries. This enables us to keep a fresh stock of watch batteries, and insures rapid delivery to clients and customers worldwide. Choose from over 45 watch battery models as your watch battery replacement.

Silver oxide batteries have several common characteristics: their 1.55 nominal voltage, their button size shape with diameters ranging from 4.8mm to 11.6mm, and their heights ranging from 1.2mm to 5.4mm. There are two main silver oxide battery types, low drain and high drain. Low drain cells are designed for watches having low current requirements, while high drain cells are designed for energy-hungry watches such as those with chronometers, alarms, or lighted dial faces. It is best to simply select the same model number which originally came with the watch; you will find it inscribed on the face of the battery. Watch Batteries from leading manufacturers are leak-proof and extremely reliable. Their shelf life exceeds four years and their service life in watches range from 1.5 to 5 years. Take a look at our extensive stock to find the right watch battery replacement for your needs. 

Attention Dealers & Jewlery Shops: We are the largest of importers of Renata & Murata watch batteries in the United States. We can provide recurring/running orders to supply shops as well as shipping at any time at the lowest prices on the market. Create a dealer account to see the lowest pricing for retailers only!

For large wholesale and B2B orders please contact us directly at (305)-371-9200 

or

To create an customer/wholesale account for web site purchase please click here

Helpful Links 

Silver Oxide Cross Reference 

Technical Data by Brands 

For a step by step guide on watch battery replacement and how to change watch a battery please click here

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Watch Battery Additional Information 

Silver Oxide (watch) batteries are primary cells with a very high energy to weight ratio. It has about twice the energy capacity as button-type alkaline batteries. In the consumer arena, it finds itself in hearing aids, watches, calculators, photoelectric exposure meters, instruments, and pagers. Unfortunately, because of the silver content, it is somewhat more expensive than other batteries in its category. 

A silver oxide (watch) battery uses silver oxide as the positive electrode (cathode), zinc as the negative electrode (anode), plus an alkaline electrolyte, usually sodium hydroxide (NaOH) or potassium hydroxide (KOH). The silver is reduced at the cathode from Ag(I) to Ag, and the zinc is oxidized from Zn to Zn(II).

 

What watch battery replacement do you need?

Check out our chart of common watch batteries below to easily identify the watch battery replacment that is right for you and your device

Watch Battery Model  Height  Diameter  Voltage
377 Watch Battery 2.6mm 6.8mm 1.55V
370/371 Watch Battery 2.05mm 9.5mm 1.55V
364 Watch Battery 2.15mm 6.8mm 1.55V
395 Watch Battery  2.70mm 9.5mm 1.55V
321 Watch Battery 1.65mm 6.8mm 1.55V

 

Q & A

 

A. What are silver oxide batteries used for?

Potassium hydroxide batteries are used primarily in LCD watches with backlights, and sodium hydroxide batteries are used primarily in digital watches. Using potassium hydroxide as the electrolyte allows silver oxide batteries to operate even under heavy draining conditions and also at lower temperatures.

B. What is the shelf-life of silver oxide batteries?

Silver oxide batteries become hazardous on the onset of leakage; this generally takes 5 years from the time they are put into use (which coincides with their normalshelf life). Until recently, all silver oxide batteries contained up to 0.2% mercury.

C. Do silver oxide batteries expire?

The Expiry date (ED) is printed on the packaging of Silver Oxide Battery. The Expiry Date on Silver Oxide Battery means the expiration of the recommended use period. The Expiry Date is determined after three (3) years from the manufactured year and month.

D. Do batteries go bad if not used?

Since primary batteries can't be recharged, any self-discharge is permanent. Most disposable batteries have an expiration date printed on the packaging. But if the unused battery is not connected to anything, it will probably be fine after four years but can't be guaranteed

E. What is a low-drain battery?

Good only for low-drain devices like clocks and remote controls. Use is for digital camera or other high-drain device. (These 2 are okay, but since cameras go through batteries fast, you're better off with a rechargeable battery that you can reuse.) 

 

How To Change Watch Batteries: A Step By Step Guide 

Step 1: Carefully Remove The Back Panel Of Watch 

First you must identify the type of back panel that your watch has. There are a few different types of back panels on watches, some needing tools to open while others can be done by hand. The common types of back panels for watches are listed below.

Screw-Down Back

A screw-down watch can be identified by its threaded case back. This type of case offers threads that allow a tight, and sometimes waterproof seal. Depending on the manufacturer of the watch, the look of and the tools needed to open the back panel may differ.  

Snap-On Back

Many earlier watches as well as some newer ones utilize a simple snap-on back. This type of back panel is held in place with pressure. Usually to open these types of case backs, a flat tool must be used to carefully pry it off.

Screw-On Back

A screw-on back is simply a back panel that is held in place by retention screws. Simply use the correct size and shaped screwdriver to remove this type of back panel..

Bayonet

A bayonet case back is attached by screws similarly to a screw-on back. The main difference is that bayonet systems allow for consistent and equal pressure on all points of the back panel. This type of back panel can also be removed by using the correct type of screwdriver. 

Step 2: Remove The Back Gasket 

Now that you have removed the back panel of your watch you can begin to see its inner workings. The next step in changing your watch battery, involves removing the rubber gasket (if your watch has one). The gasket is basically the rubber spacer in between the case back and the inside of the watch. The gasket helps with keeping a seal to keep foreign particles out as well as maintains correct pressure when the watch is closed. To remove the gasket simply use a flat tool to gently lift it up and out of your watch. Be careful to not use too much force as rubber may tear or rip.

Step 3: Remove The Old Watch Battery 

After removing the gasket, you should now be able to see the watch battery. Take a note of how it is placed inside the watch as you will want to reinsert the new battery the same way to ensure proper functionality. Also take note of the make and model of the battery to ensure that you are replacing it with the correct battery. Using the incorrect battery in a watch can result in inaccurate timekeeping, low service life, or the watch not working at all. 

If there are tabs holding the battery in place, use a tool to gently lift them up and free the battery. Once the battery is out, it is a good idea to lightly wipe off the connection points in the watch with a small cloth or qutip to ensure clean connection points that allow for optimal energy transfer. If you are having trouble removing the battery, try to use small tweezers to carefully pull it out. 

Step 4: Insert The New & Fresh Battery 

Now that the old watch battery is removed you can insert the new battery. Refer to your notes on how the old battery was placed into the watch and carefully reinsert it in the same manner. If you are having trouble doing so by hand, you can utilize tweezers to place the battery precisely. After the new battery has been inserted, reset any tabs or other holders to ensure the battery is held securely in place. 

Step 5: Ensure Your Watch Is Working

Now that the new battery is in the watch, it is good practice to check your work. To do so, simply flip the watch over and inspect it to see if it is working. If the watch is not moving, you may have inserted the battery incorrectly, have a defective battery, or have a damaged watch. If after a few tries with different placement and different batteries the watch continues not to work, it may be a good idea to take the watch to a professional jeweler for further inspection. 

If the watch is working, you can go ahead and reassemble it. 

Step 6: Putting The Watch Back Together 

 

Reinsert The Back Gasket 

To reinsert the gasket, simply place it back in its place inside the timepiece. If it is not fitting into its correct placement use a tool to gently press it into place. 

Reattach The Back Panel 

Next, reattach the back panel of the watch. This step may be done by hand, or tools can be used if necessary. It is important to get a proper fit when reattaching the back panel, but one should take caution to not over tighten as threading can be stripped.

 

Better Batteries = Better Performance

Replacing watch batteries is fairly simply but can take a fair amount of time to do properly. Did you know that higher quality watch batteries can provide extended service life to your device? This results in fewer overall battery changes. By buying high end watch batteries, you save time by requiring fewer battery changes. High end watch batteries also ensure better performance from your timepiece. High end watch batteries help provide more accurate timekeeping, longer service life, and consistent discharge for your device.

 
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