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Community-Contributed Guide
An awesome member of our community made this guide. It was not created by iFixit staff.
Introduction
Go to step 1 ↓Some new in box old stock JLAB Pop Party speakers may have sat so long the battery no longer accepts a charge due to the protection circuitry stopping a charge.
My Lime colored one isn't offered on JLABs website and was found on a clearance rack at a local store for about half price (Opened box return). the OEM replaced the device under warranty and let me keep the defective device so I was able to recover it using a recovery charger, a spudger, a phillips screwdriver and some electrical tape.
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The cover is held in with friction and very minor glue. Insert a plastic thin spudger or other thin item to the edge of the fabric cover and gently pry upwards. Eventually it will pop up slightly allowing you to insert a slim object like a guitar pick or old gift card and open the upper half of the device.
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Underneath the cover is one short phillips screw on the side opposite the strap that is recessed, and four holding the speaker in place. Remove all five.
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The battery is held into the "bottom" half so do not pull too hard or insert sharp objects or you will damage it. You can wiggle the battery out of the case and have the device pulled apart.
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The batteries in these units may have gotten so low that the low voltage cutoff will turn off. Strip the plastic cover off and use a recovery charger to get the battery recovered and the unit is now ready to play music again.
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The battery inside is a 18500 size IMR lithium cell. If your battery is too dead you may need to replace it instead of just recharging it. You will need to re-use the controller board with a new cell and solder the tabs onto the controller board to rebuild it.
Please take caution with recharging low lithium cells. Mine was not dangerously low (2.1V) and I used a charger that was designed with recovering IMR cells in mind. I only left it on the recovery setting until the cell read over 3V which allowed the speaker to power on and charge with it's onboard charger.
To reassemble your device, follow these instructions in reverse order.