Samsung 25R 'TWIN PACK' 2500mAh High Drain Lithium Battery

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Samsung 25R 'TWIN PACK' 2500mAh High Drain Lithium Battery

The Samsung 25R is brilliant for your high Power Mods which need high current draws.

The Samsung 25R batteries are flat top so please check your mod is capable of using Flat Top batteries before purchase.

Product Specs:

Flat Top 
Nominal capacity: 2500 mah
Max Continuous Rated Discharge: 20 amps (at 25 degrees C)
Nominal voltage: 3.6v
After a fresh charge: 4.2v
Cycle info: Capacity drops to 60% after 250 full charge/discharge Cycles
Don't discharge below: 2.5v
Standard Charge: CC/CV @ 1 amp / 4.20 volts +/- .05v, 100 mA cut-off
(Max) Rapid Charge: CC/CV @ 4amps / 4.20 volts +/- .05v, 100 mA cut-off
Impedance: 22.15 +/- 2 milliohms
Weight: 45g
Height: 64.85 +/- 0.15mm
Diameter: 18.33 +/- 0.07mm
Operational Charging Temperature Range: 0 to 50 degrees C (best below 45 degrees C)
Operational Discharging Temperature Range: -20 to +75 degrees C (best below 60 degrees C)
You can store them for 1.5 years at -30 to + 25 degrees C, 3 months at 30 to 45 C and 1 month at 30 to 60 C (in other words, store them in a cool place and they'll last longer)

Inclusions :

 2 x Samsung 25R High Drain Battery

Samsung INR18650 25-R Datasheet


As per the UN international shipping regulations for Lithium batteries, they have a (peel off) label with the nominal capacity, nominal voltage and size.

These are high capacity and high discharge current batteries. If mishandled / mistreated, they can cause you SERIOUS INJURY. USE AT YOUR OWN RISK !

Please be sure to inspect your battery before use to ensure it is not damaged including tears/rips in the battery wrap. Discontinue use immediately if battery is damaged.

NOTE: Use special caution when working with Li-ion cells, they are very sensitive to charging characteristics and may explode or burn if mishandled. Make sure the user has enough knowledge of Li-Ion rechargeable batteries in charging, discharging and assembly before use. Always charge in/on a fire-proof surface. Never leave charging batteries unattended.

We are not responsible for damage if there is any modification of the batteries/chargers in any form or shape (including pack making). We are not responsible for any damage caused by misuse or mishandling of Li-Ion batteries and chargers. We only recommend using Lithium Ion rechargeable batteries with a control circuit (protection PCB) to assure safe charge, discharge, etc, use of lithium ion batteries without a protection circuit is potentially hazardous.

VapeKing will not be held responsible or liable for any injury, damage, or defect, permanent or temporary that may be caused by the improper use of a LI-ION battery. Please have a basic understanding of the batteries you are using and how to care for them properly.

12 Reviews Hide Reviews Show Reviews

  • 5

    Posted by Melissa Young on 8th Jun 2024

    Just glad to buy new batteries really

  • 5
    Brilliant product for best vape battery.

    Posted by Brian on 2nd Feb 2024

    Great product at a great price. Good communication with Vape King. Thoroughly recommend. Arrived in good time in good order. Ready to go.

  • 5
    Samsung battery

    Posted by Maggie on 31st Dec 2023

    I've been buying these for years, long lasting, reliable and good value

  • 5

    Posted by Tony on 4th Aug 2023


  • 5
    Samsung 25R 'TWIN PACK' 2500mAh High Drain Lithium Battery

    Posted by Kris on 26th Jun 2023

    Arrived well packaged and nominally changed; which is ideal. The batteries work very well. They do not overheat easily, retain change capacity between changes, and tolerate high drain / quick recharge cycles well.

  • 5
    Perfect battery

    Posted by saeid on 13th Apr 2023

    I use for full day

  • 5
    Samsung 25r

    Posted by Matt Richardson on 17th Feb 2023

    Awesome battery and awesome service from these guys fast with getting it in post and cheap as

  • 5
    Lasting well

    Posted by Georgette on 25th Jun 2022

    I have had 4 batteries for a while now and they last well

  • 5
    Charged Up

    Posted by Morlaah on 22nd Apr 2022

    Can never fault these Samsungs - always have at least one spare set in my handbag at all times!!!