10Pcs LG HE2 18650 Rechargeable Battery 2500mAh 20A Continuous High-Drain 3.7V Flat Top Li-ion Cell (Unprotected) – for High-Power Flashlights & Power Tools

Key Features

• 2500mAh Capacity + 20A Continuous Discharge: Provides robust power for high-drain devices with balanced runtime.

• 20A Continuous Discharge Rating (CDR): Safely delivers 20A steady current, ideal for high-power flashlights, and power tools.

• Low Internal Resistance: Excellent heat management under heavy 20A loads.

• Flat Top Design: Compatible with a wide range of devices and battery holders.

• 10-Pack Convenience: Perfect for multi-cell setups like dual/quad battery tool pack builds, or bulk replacements.

• Unprotected (Bare Cell): No protection circuit, intended for use in devices with built-in protection.

Parameters

• Brand: LG Chem

• Model: HE2

• Chemistry: Lithium-Ion (Li-ion)

• Capacity: 2500mAh

• Nominal Voltage: 3.6V / 3.7V

• Max Charge Voltage: 4.20V ± 0.05V

• Discharge Cut-off Voltage: 2.50V

• Max Continuous Discharge Current (CDR): 20A

• Max Pulse Discharge Current: Approx. 35A

• Top: Flat Top

• Protection: Unprotected (Bare Cell)

• Weight: Approx. 45-47g / cell

Applications

• High-Power Flashlights: Powers 1500+ lumen tactical lights that require 15A-20A continuous current.

• Power Tools: Suitable for small brushless drills, electric screwdrivers, and work lights.

• RC Models: Great for 1/10 RC cars and boats needing 20A continuous current.

• DIY High-Power Power Banks: Build 2S/4S packs with strong discharge capability.

•  NOT Suitable for: Standard flashlights (<500 lumens), low-drain headlamps, digital cameras, radios, toys, or doorbells (overkill and poor value)

FAQ

Q: What is the difference between LG HE2 and HG2?
A: The HE2 has a capacity of 2500mAh, while the HG2 has 3000mAh. Both have a 20A continuous discharge rating. The HE2 is typically more affordable for budget-conscious users, while the HG2 offers longer runtime.

Q: Can I use this battery in a standard flashlight?
A: Not recommended. Standard flashlights (<500 lumens) draw only 0.5A-2A. Using a 20A HE2 is overkill and cost-inefficient. For standard lights, consider 2600mAh or 3500mAh cells.

Q: Does this battery have a protection circuit?
A: No. This is a bare, unprotected cell. Use with devices/chargers that have built-in over-charge and over-discharge protection.

Q: Can I use this battery in my power drill?
A: Yes, but primarily for small brushless drills or screwdrivers where the voltage matches (often in a battery pack). For single-cell use, ensure your device accepts a 3.7V flat-top bare cell.

Q: What are the benefits of the 10-pack?
A: The 10-pack is ideal for bulk purchases, multi-cell devices (e.g., dual/quad battery ), DIY battery pack builds, and as a spare cell inventory.