鋰電池壞了不要扔，教你簡單修復一下就搞定，又能用好幾年 #我愛電器維修

The lithium battery in the home cannot be charged Many friends thought it was broken It's not actually bad Today I will teach you a little trick It doesn't cost a penny and doesn't require professional tools fix them This is the lithium battery of the mobile phone Then these are 18650 lithium batteries This small one is also a lithium battery My method is very simple Lithium batteries like this can be repaired Let's take a look at the battery first it just won't charge Let's measure it with a watch See how many volts it is It is now 1.9 volts This voltage is obviously low like this situation It can't be charged with a charger Let's take out the charger first After putting it on, the indicator light is still blue. did not turn red it is not rechargeable Let's take a look at the markings on the lithium battery This has a 3.7 volt After its voltage is generally lower than 3.7 volts The charger won't charge it In this case, we have to activate it force charge it It can be used normally after being charged to 3.5 volts or more You don't need to throw it away The activation method starts with the first step Let's find a cell phone data cable first It's this old cell phone data cable. Let's cut this line first After snipping we use this section This is the one with the USB interface Let's unplug this line Let's take a look after we unplug the wire It has four lines inside This white line and green line are data lines for data transfer we don't need it we can cut it Then cut off the skin we're going to use this black and red right now Then we pull this thread out for it These two black wires are the negative poles of 5 volts The red one is the positive pole of the volt Then we plug it in smart phone charging head After plugging it in We can use it to force activate the battery Forced charging We connect the black battery to the negative pole of the battery The red one is connected to the positive pole of the battery We force charge it like this Charge it for about ten seconds and we disconnect it Disconnect for two or three seconds Then force charge it again because this The mobile phone charging head has a voltage output voltage of 5 volts Then the battery is 3.7 volts The highest withstand voltage is 4.2 So let's not charge it for a long time After charging like this for about ten seconds we disconnect it disconnect for a while and then put it back on connected to the battery That's about 10 charges then we put it Put it on the charger and try again Let's see if it can be charged let's yank this off Then plug in this charger and try it out Look at this color has changed to red color Now it can be used normally The battery is now repaired The activation method is very simple. video ends here Thank you all for watching and see you next time