Hello. This project has a low threshold. Easy to learn, but not difficult. It is not a big problem to do simple lithium battery testing, maintenance and disassembly after learning. If you want to do a good job in the packaging technology of lithium batteries, you still need more training. But don't think that if you buy equipment and learn technology, the manufacturer will be responsible for your survival and you will definitely make money! More is the need to master technology and how to sell products. If you are skilled, then you don't have enough sales experience, you can't sell it, and you just use it for yourself, which is equivalent to buying scrap iron. Those manufacturers who sell equipment just want to sell it to you, and they can't give much after sale. In addition, lithium batteries, like lead-acid batteries, have the risk of accidents, and small shops still need to pay strong insurance to support them, otherwise, in the event of accidents, ten years of efforts will be in vain! So how to make a choice, you should have a careful consideration. For reference only, have a nice life.