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I bought a mini stereo with a built-in lithium battery. How can I make it use the power of an electr

By.Johns 2024-08-05 16:15:02 Share on facebook Share on Google Share on Instagram Share on Pinterest Share on Twitter Share on Tumblr Share on WhatsApp Share on Telegram Share on Reddit Visit our Instagram

Introduction I bought a mini stereo with a built-in lithium battery. How can I make it use the power of an electric car? If the electric vehicle is 48V, go to the electric vehicle repair shop to install 48V/12V voltage.

I bought a mini stereo with a built-in lithium battery. How can I make it use the power of an electr

Go to an electric vehicle repair shop to install a 48V/12V voltage converter, convert 48V to 12V, and then use a 7805 three-terminal voltage regulator IC to convert 12V to 5V to power the stereo. The estimated cost of the modification is around 50 yuan.

There is also a relatively simple method: since the speaker power is very low, you can directly draw 12V from one of the batteries and then convert it to 5V via 7805. < /p>

Add a diode and a current limiting resistor to the lithium audio battery circuit to charge the lithium battery at the same time.

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