The SR927W is a push-button battery. It is widely used to power watch mechanisms, but the scope of application is not limited to this (toys, key chains, medical devices).
A galvanic cell of this type is produced by almost all well-known manufacturers, while the technical specifications may vary slightly.
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SR927W Battery Specifications
The batteries on which the numerical combination is indicated SR927W have the same dimensions, regardless of manufacturer.
The sizes are as follows:
- thickness - 9.5 mm;
- diameter - 2.7 mm.
The battery weight of each manufacturer may vary slightly. Typically, the figure fluctuates around 1.2 grams.
The battery has an output voltage of 1.55 volts. A silver-zinc element is installed. This means that batteries have a higher voltage than manganese-zinc. The model under consideration shows a stable voltage throughout the entire service life, in the end it becomes only a little less. Designed for devices that require a constant, small, stable energy. The capacity in most cases reaches 55 mAh. Moreover, the battery has a low level of self-discharge - up to 2% per year.
The battery with the designation sr927w operates at a specific temperature range. This is important to consider when choosing between options, one of which shows efficiency up to -10, and the other up to -20 degrees.
| Parameter | Value |
|---|---|
| Basic designation | SR927W |
| View | Silver-zinc element |
| Capacity | 55 mAh |
| Voltage | 1.55 V |
| Analogs SR927W | 395, 399, 927, G7, SR927SW |
| The form | Tablet coin |
| Height | 2.7 mm |
| Diameter | 9.5 mm |
| Weight | ~ 1.2 gr |
Battery Analogs SR927W
When replacing the SR927W batteries with an analogue, first of all, you need to pay attention to the dimensions: 9.5 by 2.7 mm. It is desirable that the capacity also coincides, as this will guarantee that the device will work as much before discharge.
As a replacement, choose batteries with the marking:
Before buying, you need to check whether the specified parameters are necessary for your equipment.
Battery Applications
Power supplies of this type can often be found in the most familiar things. The main scope is clockwork.
It can also be computer accessories, photographing devices, calculators, small children's musical toys; car key chains and flashlights, small electrical appliances with a small degree of energy consumption, small medical equipment.
Due to their technical characteristics, batteries of this type are chosen for equipment that requires high-quality and energy-intensive power sources, but which cannot be recharged too often.
Can I charge the SR927W battery
You cannot charge such a battery. Only batteries can be charged. But since its cost is small, even if we are talking about the most expensive options, this does not play a significant role.
Popular manufacturers and their features
To say exactly which manufacturer is the best is not possible. All deliver products with a reasonable ratio of quality and price. It is important to pay attention to the technical specifications and select them strictly with those that are required by your device.
The best way to determine this is to look at the data on the old disk battery. If this is not, or you are not sure that it was correctly selected earlier, then you can look into the technical passport of the equipment.
One of the best ratios in terms of price and quality for power supplies from Varta, Minamoto, Sony, Renata and Maxell.
There are models that are produced by domestic manufacturers. In their parameters, they are not much different, but they can cost less, for example, Cosmos and Trophy.
What to look for when purchasing
The higher the performance compared to other batteries, the better. In particular, you should pay attention to the following parameters:
- Rated capacity. The higher, the longer the device will work;
- Voltage, power and voltage. It should be 1.55 volts;
- Operating temperature range. If the device will work in cold weather, you need to choose a frost-resistant, and if at high temperatures, then heat-resistant;
- Coin coating material. Sometimes a corrosion-resistant coating is required to work in a humid environment;
- Shelf life and storage. The fresher the production date, the longer it will work.
Separately, it is worth noting the danger of galvanic cells, which are in the form of tablets or coins. Since they are very small, children can swallow them.
Still have questions about Battery SR927W or have something to add? Then write to us about it in the comments, this will make the material more complete and accurate.
