CE Approved 3.7V 802030 Polymer Li-ion Battery

High-performance 420mAh lithium-ion battery with ultra-thin 802030 compact design (8.0mm thickness, 20mm width, 30mm length). Features advanced polymer cell technology for enhanced safety and stable power output.

Precision-engineered with built-in overcharge/over-discharge protection, ensuring extended lifespan (500+ cycles at 80% capacity). Ideal for wireless headsets, Bluetooth earbuds, and compact audio devices requiring lightweight energy solutions.

Globally certified (CE/RoHS compliant) with leak-proof aluminum alloy casing. Wholesale bulk pricing available for OEM/ODM partnerships. Ships with anti-static packaging to prevent moisture damage.