• 21700 Lithium-Ion Battery - 3.6V 5000mAh (INR21700-50E)
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Samsung - INR21700-50E

21700 Lithium-Ion Battery - 3.6V 5000mAh (INR21700-50E)

Ideal for battery pack building, high-capacity portable electronics, lighting systems, and devices with built-in battery management systems (BMS).

$32.95 AUD
$32.95 AUD
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  • High-capacity cell for extended runtime
  • Reliable lithium-ion performance
  • Ideal for professional battery pack applications
  • Designed for use in controlled systems with BMS

The INR21700-50E is a high-capacity lithium-ion battery designed to deliver extended runtime and reliable performance in demanding applications. With a nominal voltage of 3.6V and an impressive 5000mAh capacity, it provides significantly longer operation compared to smaller cell formats.

Built in the larger 21700 form factor, this battery is commonly used in battery packs, high-capacity portable devices, lighting systems, and other applications where increased runtime is essential.

This is an unprotected (flat top) cell, making it suitable for use in battery packs and devices with built-in battery management systems (BMS). It is not intended for use in devices that require protected batteries.

Key Features

  • 21700 lithium-ion rechargeable battery
  • 3.6V nominal voltage
  • High-capacity 5000mAh
  • Extended runtime compared to 18650 cells
  • Flat top (unprotected) design
  • Suitable for battery packs and BMS-controlled systems
  • Reliable performance for high-demand applications

Specifications

Model INR21700-50E
Battery Type Lithium-Ion (Li-ion)
Size 21700
Voltage 3.6V
Capacity 5000mAh
Configuration Flat top (unprotected)
Rechargeable Yes
Application Battery packs / compatible devices
Unit of Measure Each

Is this a protected battery?

No. This is an unprotected (flat top) cell and should be used in devices with built-in battery protection.

Can I use this instead of an 18650 battery?

No. The 21700 battery is larger than an 18650 and will only fit devices designed for the 21700 size.

Is this battery rechargeable?

Yes. It is a rechargeable lithium-ion battery.

What is this battery typically used for?

It is commonly used in battery packs, high-capacity devices, lighting systems, and other applications with battery management systems.

Do I need a special charger?

Yes. You need a charger compatible with lithium-ion 21700 batteries.

Why choose a 21700 over an 18650?

21700 batteries offer higher capacity and longer runtime, making them ideal for applications where extended performance is required.

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