Samsung INR 25R 2500mAh 20A 18650

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The Samsung INR 18650-25R Battery is a 2500mAh battery uses a “Safer” INR Chemistry. You might have noticed the tube color of our 25R’s changed from a light blue to green. The blue battery is a 25R2 and the green battery is the 25R5. The 25R5 is the newest version of the 25R and according to Samsung the difference between the two is an increased cycle lifespan. A small storage capacity gain, or efficiency gain may also be a side-effect of their improved chemistry. Even more than before the low internal resistance and a maximum continuous discharge rating of 20 amps make the Samsung INR 18650-25R Battery a great choice for any vaper.

Please note: Batteries can only be shipped via economy service (2 to 4 days delivery) due to the hazardous nature of the item.

The Samsung INR 18650-25R Battery is the most recent battery released from Samsung. This 2500mAh battery uses a “Safer” INR lithium nickel chemistry also allowing for shorter recharge times. Low internal resistance and a maximum continuous discharge rating of 20 amps make the Samsung INR 18650-25R Battery a great choice for any vaper using builds above 0.2 ohms.

Samsung INR 18650-25R Battery Features

Dimensions: Length- 65mm / Width- 18.2mm
Weight: 45g
Full Charge Voltage: 4.2V
Nominal Voltage: 3.6V
Discharge cut-off voltage: 2.5V
Capacity: 2500mAh
Max Continuous Rated Discharge: 25 amps
Capacity drops to 60% after 250 full charge/discharge Cycles


Battery Safety Basics

Do not overcharge or over-discharge.

To combat this, do not leave your batteries in any charger without supervision. Make sure that you are able to see or check on the charger every 15-30 minutes. This way when the charger indicates that the batteries have been fully charged, you can remove them from the charger. Leaving batteries in a charger all night long or longer can cause them to be overcharged, which can result in battery failure. Charging your battery over 4.25 volts can shorten its life-cycle and going over 4.5 volts can cause it to burst. Cease using your charger if this ever happens.

Recharge batteries with a resting voltage below 3.6V as soon as possible.

Leaving LiIon batteries in a discharged state will incur irreversible damage – creating a loss in capacity and a loss in cycles.

Determining the exact voltage can be tricky, unless you have a multimeter. If you are delving into the world of mechanical mods and RBAs (ReBuildable Atomizers), or making your own coils, a multimeter is a must have device because you can use it to test your coils and your batteries. Sure, you can always use a battery tester, but the majority of battery testers are not equipped for the types of batteries that are used in mods, or even test batteries under load condition.

Do not short circuit your batteries.

Short circuiting can cause a huge surge of current that will potentially burn out your battery, damage your mod, or even your face!

Short circuits happen when the voltage from a battery is