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Two silver cylindrical 21700 lithium-ion flat-top batteries side by side

EVE Energy North America

EVE Energy North America 21700 50E 3.7V 5000mAh 15A Flat Top battery 2-pack

SKU CH-NDPQ-6Y9NT

Two flat-top 21700 lithium-ion cells deliver 5000 mAh each at 3.7 V with a 15 A continuous discharge rating

  • Battery typeLi-ion
  • 5000 mAh capacity powers devices longer between charges
  • 15 A continuous discharge supports high-drain tools and lights
  • 21 mm × 70 mm 21700 form factor fits standard battery compartments
  • Flat-top design ensures reliable contact in compatible devices
  • Two-cell pack provides a ready spare for extended use

Flat-top 21700 cell for high-drain devices

These EVE 50E lithium-ion cells measure 21mm by 70mm and deliver 5000mAh at 3.7V. They are built for flashlights, power-tool packs and other gear that demands a flat-top 21700 form factor. The two-pack suits users who need a matched pair for series or parallel configurations.

15A continuous discharge rating

The single figure that decides fit is the 15A maximum continuous discharge. Devices drawing more current will over-stress the cell, while lighter loads will not benefit from the high-drain design. Verify your equipment’s peak draw before purchasing.

Simple drop-in with polarity care

Installation is a straight swap: insert the flat-top ends according to the device markings. The only common error is confusing flat-top with button-top terminals, which prevents contact in many torch bodies. No soldering or tab welding is required for standard battery compartments.

How it compares

Measured against everything we stock in Disposable & Rechargeable Batteries, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 76% of the 985 comparable items (median $28.99).

Specifications

Power
Battery typeLi-ion

Questions about this item

What does the 5000mAh capacity mean for runtime in a real device?

The 5000mAh rating means the cell can supply 5000 milliamps for one hour, so a device drawing 1A would run for about five hours before the voltage drops to the cut-off point.

How does the 15A continuous discharge limit affect what I can power?

The 15A maximum continuous discharge caps the current the cell can safely deliver, so any load drawing more than 15A will overheat the battery or trigger its protection circuit.

Will the 21mm by 70mm flat-top cells fit my 21700 device?

These cells measure 21mm in diameter and 70mm in length with a flat positive terminal, matching the standard 21700 form factor used in many flashlights and power tools.

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