Small Polymer 3.7V Rechargeable Lithium Battery – Premium Wireless Bluetooth Headset & Speaker Power Solution
High-capacity 3.7V polymer lithium battery ensures long-lasting performance for Bluetooth headsets, car recorders, and portable speakers. Precision-engineered with advanced polymer materials for superior energy density, stable discharge, and ultra-lightweight design. Built-in intelligent protection circuit prevents overcharge, over-discharge, and short circuits—safety guaranteed. Universal compatibility with most wireless audio devices, ideal for travel, commuting, outdoor adventures, and home entertainment. Industry-leading wholesale pricing, bulk discounts available—direct factory supply ensures unbeatable value. Compact yet powerful, crafted for seamless integration and effortless replacement in your favorite gadgets.