USB rechargeable batteries are currently a popular type of rechargeable battery in the market, favored by users for their convenient charging and innovative design. USB rechargeable batteries can be divided into NiMH USB rechargeable batteries, lithium USB rechargeable batteries, and zinc nickel USB rechargeable batteries according to their materials.
NiMH USB rechargeable battery
The most common type of NiMH battery is still the conventional rechargeable battery, and NiMH batteries with USB charging ports are not common.
The nominal voltage of NiMH batteries is 1.2V, and they are mostly used in low-power devices such as remote controllers and wireless mice. The charging port is usually located on the top or side of the battery, and is often a Micro USB or Type-C interface, mainly for AA and AAA batteries.
Lithium USB rechargeable battery
This type of USB rechargeable battery is quite common and currently the best-selling USB type rechargeable battery on the market. The available battery models include AA, AAA, D, C, 9V, etc.
The battery cell voltage of lithium batteries is 3.7 volts. In order to adapt to household scenarios, a voltage control module is integrated on the circuit board to change the output voltage of batteries AA and AAA to 1.5V. USB lithium batteries have high material activity and less energy loss during charging, so the charging time is relatively short, which is the biggest advantage of lithium batteries. But when purchasing, everyone must find a reliable manufacturer with good quality control, because the characteristics of lithium element may have certain safety hazards. Good quality control can greatly reduce these hazards.
Zinc nickel USB rechargeable battery
Zinc nickel USB rechargeable batteries are a newly developed type of battery in recent years, which have advantages in voltage and power over NiMH batteries. And it has more advantages in terms of safety and environmental protection than lithium batteries.
The nominal voltage of zinc nickel batteries is 1.6V, which is close to the 1.5V of alkaline batteries. It can play a greater advantage in high-power devices such as digital cameras, KTV microphones, and electric toys.
Compared with traditional rechargeable batteries, USB rechargeable batteries can be charged directly using devices with USB interfaces such as mobile phone chargers and power banks without the need to purchase additional chargers, making it very convenient to use.
