The recording pen battery is stored for a long time without being used. As there is a protection circuit inside the battery, it will continue to consume power and the battery also has a certain self-discharge. . When the battery voltage drops below a certain value, irreversible damage may occur.
Generally speaking, most digital recorders use built-in lithium batteries. Some older recorders use AAA AA batteries, and some low-end products use button batteries.
The advantage of using ordinary batteries is that they can be replaced, but the volume is relatively larger; Coin cell recorders are usually used for promotional gifts etc. for one-time or short-term recording. Consumers can choose which power mode recorderaccording to their own needs.
The digital recording pen, a type of digital recorder, is shaped like a pen and is easy to carry. It also has multiple functions, such as laser pointer function, MP3 playback, etc. Compared to traditional recorders, digital recorders record audio via digital storage.