Replacement Battery for JBL Xtreme 4 Speaker
Restore the power and performance of your JBL Xtreme 4 with this replacement battery, matching JBL's official Battery 400 specification.
Battery Specifications
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Compatible Model: JBL Xtreme 4 (JBL Battery 400)
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Part Number: FG4CELL21700H
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Voltage: 7.4V
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Capacity: 10000 mAh / 74 Wh
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Battery Type: Lithium-ion (Li-ion)
Key Features
- ✓ Built-in BMS Protection — overcharge, over-discharge, overheat & short-circuit protection
- ✓ Direct Drop-In Fit — matches original specifications exactly
- ✓ Premium Li-ion Cells — stable voltage, long cycle life
- ✓ 100% Tested Before Dispatch — quality verified at BatteryWorks
- ✓ Cost-Effective Repair — restore your speaker for a fraction of replacement cost
Why BatteryWorks?
BatteryWorks India specialises in replacement batteries for JBL, Bose, Bang & Olufsen, Harman Kardon and other premium audio brands. Every battery is certified, tested and ready to install.
