Overlander Molicel P50B Li-Ion Battery OL-3691

The Molicel P50B 5000mAh 10.8V 3S1P Flat 21700 Li-Ion Battery is a compact, high-performance power source built from two premium Molicel P50B cells in series. With a 10.8V nominal voltage and 5000mAh capacity, this flat pack delivers reliable energy for demanding applications that require a slim profile and consistent output. The P50B is one of Molicel’s top-tier cells, known for its high discharge capabilities and excellent thermal stability under load.Molicel’s reputation for performance and safety makes this pack a trusted choice for RC, robotics, portable electronics, and custom projects where space is limited but dependable power is essential.

Designed without compromise, this 3S1P pack benefits from Molicel’s industry-leading cell construction, offering excellent cycle life and discharge performance under load. The flat layout and durable construction make it easy to integrate into tight enclosures or stack with other components. This battery provides the balance of energy density (260Wh/kg) and durability that serious users demand.

• 5000mAh capacity & 10.8V output – Delivers stable and efficient power for RC electronics and robotics.
• Molicel quality & reliability – High-performance 21700 cells ensure long cycle life and consistent output.
• 3S flat configuration – Space-efficient design for easy installation in various applications.
• Choice of connectors – Available with Deans, Mini Tamiya, EC3 and XT60 for flexible compatibility.
• JST-XH balance lead – Keeps cells balanced during charging, extending battery lifespan and performance.
• Compact and lightweight – Designed for optimal power-to-weight ratio in RC models and electronics.

This battery is designed for users who understand the handling requirements of Li-Ion technology — over-discharge protection is NOT built in, so it should only be used with systems that include voltage monitoring or cutoff features. Trusted by professionals for both its energy density and cycle life, the Molicel P50B 3S pack is a compact powerhouse ready for integration into serious projects.

Always follow manufacturer guidelines for safe charging, usage and storage of Li-Ion batteries. Use a compatible Li-Ion charger, ensuring correct voltage and current settings. Avoid overcharging, deep discharging and exposure to extreme temperatures. Monitor the battery during use to prevent overheating. Never leave the battery unattended while charging, and store it in a cool, dry place away from flammable materials. Improper handling can cause damage, fire or injury. Dispose of used batteries responsibly according to local regulations.

• Battery Type: Lithium-Ion (Li-Ion)
• Capacity: 5000mAh
• Cell Size: 21700
• Voltage: 10.8V (3S)
• Battery Connector: Deans, EC3, Mini Tamiya, XT60

• Brand: Overlander
• Part No: OL-3691