Can the small plug-in speaker that uses batteries be changed to use direct power without batteries.

Introduction Can the small plug-in speaker that uses batteries be changed to use direct power without batteries. How to change it? Absolutely, you can measure the battery voltage first (5# battery is not needed), if it is 3

Can the small plug-in speaker that uses batteries be changed to use direct power without batteries.

Absolutely, you can measure the battery voltage first (5# battery is not needed). If it is 3.6-4.5V, just spend 8 yuan to buy a 5V USB charger from a computer store. two wires from the charger directly to the battery. If it is a 3.6V lithium battery, just connect two diodes in the same direction on the wire.

I bought a speaker for the elderly. It has a battery but no charger. The battery model is BL-5c/3.7V lithium battery. Can I use it?

The mini speaker is a professional portable music device with a novel design that does not need to consume mobile phone power and has its own rechargeable lithium battery.

Common ways to use mini speakers include playing AUX audio input, playing SD card (speaker automatically plays music for playback), playingre the Bluetooth connection, etc. If you want to connect via USB, that usually means charging the lithium battery that came with the speaker and using the USB cable to charge it. The speakers will come with a USB charging cable when purchased, which can be directly plugged into a computer's USB port for charging, or connected to a commonly used mobile phone charging head, charger multiport, etc.

Oni S300 Speaker Battery Replacement

The lithium battery used in the portable speaker can be charged with a universal cell phone charger.

1. The BL-5c/3.7V lithium battery is the standard battery for a Nokia mobile phone. It is currently often used as a battery for portable speakers. The charger is not included in the standard configuration.

2. The BL-5c/3.7V lithium battery can be charged withthe Nokia mobile phone charger or the universal mobile phone charger. When charging with the universal charger, please pay attention to the positive. and the negative pole of the battery, do not connect it backwards, as this may cause the battery to burn out.

Hello:

——★? Small plug-in board speaker with radio functionThe s300 omni speaker can use 3.7V rechargeable lithium battery (the 5V socket also serves as a charging port), it There is no need to replace the battery, just charge it in time.

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