Molicel P50B 5000mAh 14.4V 4S1P Flat 21700 Li-Ion Battery

£56.99

  • 5000mAh & 14.4V power delivers reliable energy for RC applications.
  • Molicel quality ensures long-lasting performance and dependable efficiency.
  • 21700 cells provide high capacity with stable voltage output.
  • Flat, compact design offers a space-saving and lightweight solution.
  •  Delivery & Return

    Delivery

    We aim to dispatch all orders within 1-2 business days. Please allow additional time for custom orders. During peak periods, dispatch times may vary.

    Delivery charges depend on the items ordered.

    Orders containing Lithium:£6 Courier Shipping
    Orders exceeding £75:£6 Courier Shipping
    Orders exceeding £120:Free Courier Shipping
    Other:£4 Royal Mail First Class

    Please note, that postage costs outside of mainland UK will vary.

    For more information see our Help Centre

    Returns

    Please, contact us to open a return. Please ensure all returns are sent to us with a completed returns form. We aim to resolve all cases within 2 working days. 

    For more information see our Help Centre


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Product Description

The Molicel P50B 5000mAh 14.4V 4S1P Flat 21700 Li-Ion Battery is a compact, high-performance power source built from two premium Molicel P50B cells in series. With a 14.4V 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 4S1P 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.

Key Features & Benefits

  • 5000mAh capacity & 14.4V 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.
  • 4S flat configuration – Space-efficient design for easy installation in various applications.
  • Choice of connectors – Available with Deans, 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.

Safety Information

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 4S 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.

Specifications

 
SKU 3693
Barcode 5060470215576
Chemistry Lithium Ion (Li-Ion)
Cell Size 21700
Capacity 5000mAh
Voltage 14.4V
Cell Count 4S
Watt Hours 43.2Wh
Connector Options Deans, EC3 and XT60
Balance Connector Type JST-XH
Cell Brand Molicel
Dimensions 74 x 88 x 23 (mm)
Weight 292 (g)
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