crwdns2935425:021crwdne2935425:0
crwdns2931653:021crwdne2931653:0
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Then use the damaged battery core that was removed before, press the loaded battery down, and finally solder the positive electrode of the battery. Be careful not to solder for a long time, and solder it quickly, otherwise it will damage the battery.
crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0