| The battery you will need is a rechargable battery with the serial code 533-000164. |
| This guide is intended to help replace a faulty batter and restore thr speaker's functonality. |
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| The battery stores chemical energy and converts it into electrical energy to power electronic devices. Wireless speakers like the MegaBoom 4 uses rechargeable lithium-ion batteries as they can be charged many times over and over. The battery also allows the speaker to function without being plugged to a power source. |
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| The battery you will need for replacement is a rechargable battery with the serial code 533-000164. |
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| If your MegaBoom 4 shows any of the folowing symptoms, then the battery needs too be replaced. |
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| * Doesn't turn on when charged |
| * Randomly powers off while in use |
| * Battery life drains fast |
| * Doesn't charge at all |
| Before using this guide to replace the battery, make sure to go through the [link|https://www.ifixit.com/Wiki/Logitech_UE_Megaboom_4_Does_Not_Power_On?revisionid=HEAD|troubleshooting page.|new_window=true] |