What I think is great (and also very useful) is that you can now replace the battery yourself on the Xtreme4. But why can't you buy the replacement batteries? That would be a good addition to the speaker, here in the shop.

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You're right, according to JBL the following battery is compatible with the Xtreme 4: [JBL 4CELL REPLACEABLE BATTERY PBSTAGE](https://www.digitec.ch/de/s1/product/jbl-4cell-replaceable-battery-pbstage-audio-zubehoer-42955894?supplier=406802&utm_source=google&utm_medium=cpc&utm_campaign=PROD_CH_PMAX_GSE_Cluster_NoID&campaignid=20461992931&adgroupid=&adid=&dgCidg=EAIaIQobChMIwNyJ3t37hQMVlqSDBx1hxw0mEAQYBSABEgJ14_D_BwE&gad_source=1&gclid=EAIaIQobChMIwNyJ3t37hQMVlqSDBx1hxw0mEAQYBSABEgJ14_D_BwE&gclsrc=aw.ds)

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Question about JBL Xtreme 4

What I think is great (and also very useful) is that you can now replace the battery yourself on the Xtreme4. But why can't you buy the replacement batteries? That would be a good addition to the speaker, here in the shop.