Egoway 10000mAh Replacement Battery for PartyBox Stage 320 & Xtreme 4 Speaker - 7.4V 74Wh Rechargeable Lithium-ion Battery, Long-Lasting Power, Fast Charge, 1 Pack (Speaker Not Included)

Ultra-long Battery LifeEgoway 10000mAh battery provides up to 18 hours for PartyBox Stage 320 and 24 hours for Xtreme 4. Eliminate battery anxiety and keep your music party alive! (Compatible only with PartyBox Stage 320 and Xtreme 4 for optimal performance. ) ^^ Fast Charging10-minute quick charge adds 2 hours of playback. USB Type-C port with included Type-A to Type-C cable, compatible with portable chargers, wall adapters, and original chargers. ^^ Smart ProtectionBuilt-in intelligent chip with 5-layer protection: over-charging, over-discharging, over-voltage, over-current, and overheating. Stable 7.4V lithium-ion technology for reliable performance. ^^
Easy ReplacementPartyBox Stage 320: Replace via rear compartment.
Xtreme 4: Unscrew top cover with a screwdriver. Battery health status can be monitored via the speaker app ^^ SupportPerformance as good as original factory level. 30-day unconditional return and exchange + 12 months warranty. 24/7 customer service to answer all your questions.