Battery 395 is a button, disk battery - a miniature power source from the manufacturer Renata. Designed for small products that require constant energy consumption. The product is cylindrical in shape. The cell body is a positive charge electrode, a round platform at one end (of a diameter smaller than the battery itself) is negative.
Content
395 Battery Specifications
A galvanic cell, the size of which with a small button, resembles a disk tablet in shape, a type 395 battery has the designation SR57 and has the following technical characteristics:
- chemical element - silver-zinc;
- electrolyte - NaOH;
- diameter - 9.5 mm;
- height - 2.7 mm;
- voltage 1.55 Volts;
- rated capacity 55 mAh.
A battery of such power has a long shelf life, which varies within 2 to 3 years. The element is completely sealed, withstands constant voltage for the entire period of operation. Internal resistance is low. The production does not use anti-corrosion materials that have toxicity to the human body. Electrolyte leakage is unlikely.
| Parameter | Value |
|---|---|
| Basic designation | 395 |
| View | Silver-zinc element |
| The form | Tablet coin |
| Capacity | 55 mAh |
| Voltage | 1.55 v |
| IEC code | SR57 |
| Analog 395 | Read more HERE |
| Height | 2.7 mm |
| Diameter | 9.5 mm |
| Weight | 0.76 gr |
| Temperature Range | -10 ° C - 60 ° C |
Important! Type 395 batteries are small in size and must be protected from children. If the baby swallows something like this, the consequences can be irreversible until poisoning.
Battery Applications
Batteries with similar technical parameters were originally created for watches, characterized by a small but constant energy consumption.
Today, other devices have appeared on the market for which a similar power source has become sufficient - these are primarily calculators, car keys, flashlights, remote controls, key rings, small cameras, miniature game products, laser pointers, LED flashlights and other electrical appliances with a low, uniform power consumption.
The operation of galvanic cells in such devices is a guarantee of reliability, durability. Low cost, availability - additionally indicate the advantage of such energy sources.
Analogs of the Renata 395 battery
Today low-current batteries are being produced by many manufacturers. For example, batteries created on the basis of silver oxide with the following markings are considered to be analogs that can replace batteries of the Renata 395 type:
- 395
- V395
- D395
- SR57
- SR927W
- SR927SW
- LA
- 280-48
- SB-AP / DP
These products are considered fully compatible. They have the same dimensions, capacitance, voltage.
Can I charge the 395 battery
Initially, given the sophisticated production technology, the 395 size battery does not imply additional recharging. So you can’t charge such batteries. Recharging is possible only on batteries, but batteries are not.
If you connect the product to a power source, give the lowest voltage - it will not take charge at best, and at worst it will burst and flood everything with electrolyte. Therefore, such things need to be treated responsibly, and the sunken power sources should be replaced with new ones.
Note! Size 395 batteries are disposed of with household waste, since no harmful metals are produced in their manufacture.
Popular manufacturers and their features
The well-known brands under which batteries of type 395 are manufactured: Duracell, Varta, Energizer, Maxell, Trophy, Rexant, Camelion, Videx and Vinnic.
There are similar products from other manufacturers, however, the data has recommended their goods as the highest quality and durable. Technical specifications, battery parameters are quite the same type of Renata 395 batteries.
What to look for when purchasing
When buying a button cell battery for your watch or other device, it is important to remember that, in appearance, the same batteries may, although slightly, differ. This means only one thing - when choosing, you need to be especially careful, since the device may simply not work if you put the “wrong” battery.
Experts recommend that when purchasing, pay attention to the following characteristics:
- dimensions;
- rated capacity;
- power (voltage);
- self-discharge.
An important role is played by the possible range of working temperature. Manufacturers produce special batteries that can work under conditions of frost or in extreme heat (frost-resistant, heat-resistant cells). If it is supposed to operate under conditions of high humidity, respectively, products with an anti-corrosion coating are selected. Studying the marking of “coin”, the expiration date indicated on it is taken into account - the older the release date, the lower the performance, and accordingly the lower the quality of work.
