[2 Pack] 50E 21700 5000mAh 15A Rechargeable Battery - High Capacity Power Cell for Tools, E-Bikes & Flashlights

Upgrade your devices with the reliable [2 Pack] 50E 21700 5000mAh Li-Ion Batteries, engineered for high-performance and long-lasting power. Offering the same capacity as the Samsung 50E but with a stronger 15A continuous discharge rate, these rechargeable cells are the smart, cost-effective choice for professionals and hobbyists alike.

Perfect for power tools, e-bikes, scooters, flashlights, vaping devices, and custom battery packs, the 50E delivers consistent power output, superior runtime, and dependable safety under load. Its flat-top design and lithium-ion chemistry ensure efficient energy transfer and durability over hundreds of cycles.

Key Features:

• High Capacity Power: 5000mAh per cell for extended usage time.

• Strong Output: 15A continuous discharge current for demanding applications.

• Reliable Chemistry: Lithium-ion technology ensures stable voltage and long cycle life.

• Ideal for Builders: Excellent for DIY battery packs, tools, or e-mobility solutions.

• Smart Value: Comparable to Samsung 50E performance at a better price.

Specifications:

• Model: INR21700-50E

• Size: 21700 (21x70 mm)

• Top: Flat Top

• Capacity: 5000mAh

• Continuous Discharge: 15A

• Pulse Discharge: 20A

• Nominal Voltage: 3.6V

• Max Voltage: 4.2V

• Cut-off Voltage: 2.5V

• Weight: Approx. 69g

• Protection: Unprotected Cell

FAQs

Q1: Is this battery compatible with Samsung 50E?
Yes, it is a cost-effective equivalent to the Samsung 50E, offering the same 5000mAh capacity with enhanced 15A discharge capability.

Q2: Can I use these batteries in power tools or e-bikes?
Absolutely. These 21700 batteries are designed for high-drain applications like e-bikes, scooters, and cordless tools.

Q3: Are these batteries protected or unprotected?
They are unprotected flat-top cells, ideal for use in battery packs or devices with built-in protection circuits.

Q4: How do I safely charge these batteries?
Use a dedicated Li-ion charger compatible with 21700 cells and ensure you follow standard charging safety practices (charge in a fire-safe area, avoid overcharging or deep discharging).

2 Day Dispatch* & Free Returns

Order before 2pm and we promise to dispatch on Same Day ! SYD, MEL, BRI, ADL orders are delivered within 1-2 days. Others within 2-5 days.

Warranty

• 1 year Australian warranty

• If product fails within the warranty period, we will repair it or replace it.

• Warranty does not include accidental damage or normal wear and tear.

Change of Mind Returns  
We have a 14-days return policy, which means you have 14 days after receiving your item to request a return. For change of mind returns, your item must be in the same condition as you received it, unworn or unused,  with tags, and in its original packaging.  
 

Refunds

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.