USB battery

A new USB rechargeable battery has recently appeared on the market. Its main difference from others is its special charging connector. It is installed under the positive terminal or on the power source body. Various types are available. AA, AAAor Krona. These are the most common formats with a USB port.

Characteristics of a battery charged via a USB connector

According to the port type, they can be divided into two types:

1. With hidden in the case.
2. With external port.

The first type looks like a regular saline battery from the outside. However, it can be distinguished from a regular battery by the cap on the connector. It can be red, green, yellow, or another color.

After such a battery is discharged, it is enough to remove the cover and plug the power element into the computer port or chargerfrom a phone with the required connector.

The second type has a port on the body. To charge, you need to plug the cable into the port and the other end into the charger.

After this, charging will begin. It will take approximately 1.5-3 hours to fully charge the battery. When charging is complete, a green or blue light will illuminate. This indicates that the USB battery is fully charged.

Main parameters

• Capacity from 400 mAh.
• Voltage from 1.2 – 1.4 volts.
• Charging time is one and a half hours.
• Weight from 7 grams depending on format.
• They are charged from 5 volt chargers.
• Type nickel metal hydride batteries or lithium polymer batteries.
• Countries of origin: Japan, China.
• Service life is 3 years.
• 1 year warranty.

Pros

Batteries with a USB charging port have a number of positive qualities.

• Cost-effectiveness.
• Durability.
• Ecologically clean product.
• They use energy economically.
• Can be recharged up to 500 times.
• You don't need to buy a special charger. A USB phone charger will do, or you can simply plug it into your computer.
• You won't have to buy batteries for a long time.
• There is no "Memory" effect.

Cons

• High price.
• Increased self-discharge.

A USB battery can be used in technology instead of standard power sources.