Samsung 25R 18650 2500mAh 20A Battery

The Samsung 25R is one of the best choices on the market for an 18650 battery, offering a 2500mAh capacity and a 20A continuous discharge rating (CDR).


  • Style: Flat Top
  • Protected: No
  • Capacity: 2500mAh
  • Continuous Discharge Rating: 20A
  • Nominal Voltage: 3.6V
  • Maximum Voltage: 4.20V
  • End of Charge Voltage: 4.20V
  • End of Discharge Voltage: 2.50V
  • Internal resistance: Max 18mΩ (AC 1kHz) | Typical 13.20mΩ ±2 (AC 1kHz)
  • Approximate Dimensions: 18.33mm x 64.85mm
  • Approximate Weight: 43.8g

Package Includes:

  • 1 Single Samsung 25R 18650 Battery


Lithium IMR batteries are extremely hazardous and liable to cause serious injuries to persons or property. The user accepts liability for the use of a Lithium IMR battery. As the manufacturer and the distributor cannot ensure the battery is used correctly (charging, discharging, storage, etc.), they cannot be held liable for damages caused to persons or property.

 Battery Chargers:

Nitecore I2

Nitecore I4

Golisi S4 Digital Charger

### Will fit all mods requiring an 18650 battery (flat top). ###

Fully charge before first use.
Never short (connect positive and negative ends) battery.
Always keep them in a battery case or inside of your device
Never put this battery together with metal objects (short circuit can happen if you do).
Never carry bare cells in your pocket with keys, change or any other metal objects.

Please read our battery safety page.