UL UN CB KC IEC62133 Certificates Rechargeable 423040 3.7V 530mAh Lipo Lithium Polymer Battery for Smart Watches
Certified safe and reliable with UL, UN, CB, KC, and IEC62133 approvals for global compliance. High-performance 3.7V 530mAh lithium polymer cell ensures long-lasting power for smartwatches and wearable devices. Precision-engineered 423040 compact size fits seamlessly into sleek wearable designs without compromising capacity. Stable discharge and low self-discharge rate enhance efficiency, ideal for continuous usage in fitness tracking and notifications. Advanced polymer technology provides lightweight durability, resistant to swelling and leakage for extended lifespan. Perfect replacement or OEM option for smartwatch brands seeking quality-certified batteries with fast recharge cycles. Bulk pricing available for manufacturers and wholesalers—global shipping with competitive lead times.