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firmware 1.2: JBL xtreme 2 battery vs ac power sound test - also xtreme 1 - maximum volumes - YouTube
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WYGUO Xtreme 2 Battery Replacement for JBL Xtreme 2 XTREME2BLKAM XTREME2BLUAM 2INR19 66-2 SUN-INTE-103(7.2 V 37.44Wh): Amazon.co.uk: Computers & Accessories
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