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2 x Samsung 25R 18650 High Performance Rechargeable Lithium Battery

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2 x Samsung 25R 18650

The Samsung 25 R rechargeable lithium battery provides a consistent power source with its 2500mah capacity making it an ideal battery for vaporisers.

This battery is also one of the top performing batteries used in sub-ohm mods, power banks, torches and other devices. 

For the best charging it is recommended to use a Smart / Intelligent Charger to maintain the battery’s high performance. This is because the IMR cells have a low internal resistance and should not be charged above 2.5 volts, which can happen with an inferior charger.

The Samsung 25R was still a top selling battery last year (2019) after being a favourite on the market since its release in 2014. It still provides a great balance of 20A current rating and capacity.

Its battery cell is of continual good quality and high reliability. Dubbed the "Goldilocks" cell, it does everything a battery should do and does it well.

The 18650 batteries are the most popular for vaping owing to their reliability. 


  • Model: Samsung 25R / INR18650-25R
  • Size: 18650
  • Flat top
  • Protected: No
  • Rechargeable: Yes
  • Nominal capacity: 2500mAh (0.2C discharge)
  • Min capacity: 2450mAh
  • 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 1 kHz); Typical: 13.20mΩ ±2 AC 1 kHz)
  • Standard charge: 1.25A
  • Standard charge Time: 3 hours
  • Quick charge current: 4A
  • Quick charge time: 1 hour
  • Dimensions: 18.33mm x 64.85mm
  • Weight: 43.8g