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The battery of PSP3000 has been locked for the second time due to prolonged inactivity and needs to be reactivated. After the first lock, I went online to Google and said that the automatic protection circuit of the battery was working, locking the battery to prevent the lithium battery from being used for a long time and causing battery failure. I looked at the methods on the internet and found that some used discharge and some used brief high-voltage stimulation of the electrodes, but none of them worked. So he made a bold move and dismantled the battery in eight pieces, removed the control circuit board, and forcefully connected the phone charger to charge it. However, the charger indicator light responded, so he soldered on the protective circuit and installed it into the PSP. Surprisingly, it was OK, excited! A sense of achievement!

A few days ago, I discovered that the battery was locked again due to the same reason as before. It had not been used for a long time, so I followed the old routine. This time, I took a shortcut and didn't want to disassemble the circuit board. I opened the battery shell directly and connected it to the circuit board to charge with a mobile phone charger. It worked again, so I quickly turned off the power and installed the battery into the PSP. I connected the PSP3000 power supply, and the yellow light on the power was on. The battery icon in the upper right corner of the screen flickered. I entered the host settings bar and checked the battery information. At the beginning of a few minutes, there was no response. After patiently waiting for a while, I found that the system displayed that the system power was an external power source, and the battery was in a charging state. The battery level began to gradually increase. This time. I hope we won't lock it up again in the future, the whole battery is useless like this.

Actually, why not just use a bare lithium battery like a mobile phone? If you insist on adding a control circuit, it can cause a lot of trouble in case of lock up. The whole machine becomes a brick, and if you are too lazy to unlock it, you have to take it to the repair shop for repair, which brings a lot of inconvenience to users. Although protecting the circuit can protect the user's battery to a certain extent, is it really necessary? Compared to the situation where the user encounters lock up, can this protection offset the trouble it brings to the user? Isn't using a bare lithium battery on a mobile phone still working well?! It is still necessary to carefully balance the functional design issues of the product.

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