BZ 1655898 7.4V 4000mAh Li-polymer Battery Pack: High-performance, custom-shaped power solution for medical equipment. Engineered with low internal resistance (≤60mΩ) and stable discharge, this reliable battery ensures long cycle life (500+ times) and safe operation (-20~60℃). Ideal for portable medical devices requiring durable, CE/ROHS/UN38.3-certified energy solutions with fast charging and consistent performance in demanding environments.More