Slide 1
Complete Selection of Vape Mods & Kits
Slide 2
Create your OWN eJuice at a fraction of the COST!!
Slide 3
Mod Accessories and Tools to help you optimize your vaping needs
Slide 4
Local & International eLiquids to suite your taste
Slide 5
RTA, Coil Based and Mesh Based Tanks
previous arrow
next arrow

Samsung 18650 Battery 25R | 2500mAh 20A 3.7v INR | High Drain |


Availability: In stock

SKU: Samsung_25R_2500mAh_20A_IMR_18650_Battery Category:

Samsung 18650 Battery 25R | 2500mAh 20A 3.7v INR | High Drain |

Samsung 25R 2500mAh 20A INR High Drain Battery is one of the best batteries available for sub-ohm mods.  With a capacity of 2500mah, a max discharge current of 20A, these batteries will produce a very constant and clean power while providing extra run time.

Please note that due to their inherent safety, INR cells don’t have a protection circuit built-in. They should never be discharged below 2.5 volts or cycle life/performance will be reduced. The maximum charge voltage is 4.25 volts.

Not only are these the safest batteries available, they also perform better for a longer period of time.

This Battery is commonly used with the personal vaporizers and other devices which use 18650 Batteries such as flashlights, external battery packs for Laptops, Portable Powerbank chargers and devices such as Kangertech KBOX 40W Mod, Kanger Subox Mini Starter Kit, Smok XCube 2, Smok Kooper Mini 60W TC, Cloupor GT 80W, SMOK XPro M65 up to around 60 Watts requiring a High Drain 18650 battery.

Can be charged with any Li-Ion battery charger with 4.2V output however, for best battery life we recommend charging with a Smart / Intelligent Charger such as the one at Nitecore UM20 Fast Intelligent USB Powered Li-ion / IMR LiMn Battery Charger.


These IMR cells have much lower internal resistance than regular Li-Ion 3.7V cells and they may end up with a higher ending voltage when charged in certain chargers.  Please check the voltage of your 18650 IMR battery right out of the charger with a Multimeter to see if they are above 4.20V when fully charged with your charger.  These batteries should never be discharged below 2.5 volts or the life cycle and performance will be reduced. Overcharging above 4.25V may shorten life/cycles. Batteries that read above 4.5 volts may be damaged and we recommend to discontinue the use of the charger.  DO NOT use a charger if it is overcharging IMR cells.  For best results and battery life expectancy, we highly recommend using an Intelligent Charger.

OTHER CAUTION NOTES: Do not over-discharge/overcharge Recharge empty batteries (resting voltage ~ 3.6V). Leaving Li-Ion batteries in discharged state will incur irreversible damage (capacity/cycle loss) Do not short circuit (will release tremendous current). Do not dispose of in fire Always remove battery from charger when fully charged.

Product Specifications

  • High Drain – 20A discharge
  • Model: Samsung INR18650 25R
  • Nominal Capacity: 2500mAh
  • Nominal Voltage: 3.6V
  • Full charge Voltage: 4.2V
  • Operating Temperature (cell surface): Charge 0 ~ 50℃ , Discharge -20 ~ 75℃
  • Diameter : 18.3 + 0.2/-0.3 mm ( Max. 18.5 mm )
  • Height : 65.0 ± 0.2 mm ( Max. 65.2 mm )
  • Weight Max. 48.0 g
  • Positive terminal: Flat top

~We Do Recommend using a External Battery Charger to charge any batteries (NiteCore I2, NiteCore I4 , NiteCore Q4)~



High Amperage batteries supplied by Samsung. Best used and proven batteries with the longest durable battery life. Tested and proven.
Weight 0.1 kg

Customers' review

5 stars 0 0 %
4 stars 0 0 %
3 stars 0 0 %
2 stars 0 0 %
1 star 0 0 %


There are no reviews yet.

Be the first to review “Samsung 18650 Battery 25R | 2500mAh 20A 3.7v INR | High Drain |”

Contact Us
Shopping Cart