The 16340 batteries are state-of-the-art high-quality batteries that provide high capacity and voltage for small sizes.
Content
Battery Specifications 16340
The batteries of this type have a cylindrical shape and the following technical parameters:
- electrochemical system - lithium-ion (Li-ion);
- overall dimensions: length 34 mm, diameter 16 mm;
- weight - about 40 grams;
- electromotive force (voltage) - 3.7 volts;
- typical capacity is 500-3000 mAh;
- operating temperature range - from -30 to 55 degrees Celsius;
- the number of recharge cycles - 5-7 thousand;
- Shelf life is approximately 15 years.
The positive qualities of batteries of this type include high thermal stability, high power with low weight, relative voltage constancy at 3.7 V, no memory effect, long shelf life.
The disadvantages of 16340 batteries include the high cost and the need for strict implementation of the rules for their operation to ensure the necessary level of safety.
If saline or alkaline When the battery is the most common problem during improper operation, electrolyte leakage is possible, with lithium-ion batteries the possible consequences can be much more serious. Forced charge, short circuit, high temperature rise can lead to uncontrolled highly active chemical reactions that are fire and explosive, which is why lithium-ion batteries are prohibited in aircraft.
Analogs and what can be replaced 16340
Full analogues of such power sources do not exist. There are similar power supplies:
- Battery size 18350 with similar, but slightly larger sizes (diameter - 18 mm, length 35 mm), which have the same voltage and increased capacity.
- disposable lithium batteries CR123 or CR123A with completely identical sizes, which have a capacity of up to 1500 mAh, but the rated voltage is 3 volts, not 3.7.
Battery Applications
Due to its excellent characteristics, lithium-ion batteries of this size are widely used in various small-sized electrical devices:
- lanterns;
- toys;
- flash units;
- lasers, laser designators.
How to charge battery 16340
Charging lithium-ion batteries requires strict observance of the rules and ensuring control of the temperature of the batteries during charging, as well as preventing excess voltage above 4.2 volts.
It is better to charge such sources without waiting for them to be completely discharged, as this significantly worsens their characteristics.
Charging should be carried out with a smooth increase in the charging voltage, and maintain a constant current value of about 0.5-1 amperes. Therefore, it is better not to take risks when purchasing cheap chargers, but to purchase high-quality products that ultimately justify their price, due to the increased life of the rechargeable power sources and the long-term preservation of their characteristics.
Failure to comply with the charging rules of such batteries may result in fire or explosion.
Popular manufacturers and their features
When buying lithium-ion batteries, special attention should be paid to their quality in order to be fully sure that a particular sample is produced with the necessary protection against strong discharge, short circuits, overheating.
Due to the small size of these sources, some manufacturers do not install protective systems in them, which is undesirable for lithium-ion sources.A sign of the presence of built-in protection is an increase in length of 1-2 mm (standard length - 34 mm, increased - 35-36 mm), as well as the presence of an isthmus under the thermal film near the positive contact between the protection board and the battery.
Good quality can be provided only by serious manufacturers who are able to comply with all the technological subtleties of their production.
For example:
- Robiton
- Fenix;
- Lifepo4;
- Soshine;
- Keeppower
- KSK;
- Nitecore
- UltraFire
What to look for when purchasing
When buying a 16340 lithium-ion battery, it is important to pay attention to the study of such factors:
- absence of damage to the body, sagging, signs of oxidation;
- the quality of the marking and designations, the presence of inscriptions about their manufacturer, which should be well readable, the font without bifurcation or distortions;
- drawing on the case of the date of manufacture and the time remaining until the expiration of the storage period;
- tightness of the factory packaging, the absence of grammatical errors in the inscriptions on the battery and packaging, which indicates a fake;
- the presence of the inscriptions protected, protection Built-in, battery with PCB and the like on the case, which indicates the installation of built-in protection.
