Great post This simple but effective way to change the battery of a portable speaker is really useful. Many people face the problem of battery drain in a short time, but it can be easily solved by seeing this post. The idea of ​​recovering lithium batteries from laptop batteries is also great. We also sometimes collect old laptop battery cells and use them for various necessary purposes. Especially lithium-ion cells are quite effective for power banks, small DC fans, LED lights, and portable devices. However, it is important to check the voltage and health of the battery before use, so that accidents can be avoided. If you have any experience or special tricks, it would be nice to know. Thanks for the step-by-step explanation.

I would like to see more such useful repair posts in the future. Best wishes @rmm31 brother.