High-performance 3.7V Lithium Polymer Battery with ultra-compact 401040 size, delivering stable 130mAh capacity for prolonged device runtime. Precision-engineered with premium Li-ion cells and advanced polymer electrolyte for enhanced safety and 500+ charge cycles.

Ideal for powering mini electronics: wireless earbuds, recording pens, point-reading devices, and compact IoT gadgets. Features built-in PCB protection against overcharge/overheat with ±0.1V voltage accuracy.

Slim 4.0x10x40mm lightweight design (8g) enables seamless integration into space-constrained devices. OEM-friendly with customizable connector options (JST/PH2.0).

Batch pricing available for bulk orders – wholesale discounts apply. CE/RoHS certified, shipped globally with real-time tracking. Compatible with most 3.7V charging circuits.