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18650 Li-Ion 2600mAh 3.7V Rechargeable Battery

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Samsung 26J Protected Button Top 18650 Battery

The Samsung 26J is an 18650 battery with the power you need for energy demanding devices like flashlights and powerbanks. Thanks to its energy-dense ICR chemistry, this battery boasts a 2,600mAh capacity. Combine that capacity with a 3 year shelf life and a minimum of 300charge cycles, this rechargeable 18650 provides long-lasting energy with a single battery.

The added protection circuit board (PCB) offers overcharge, overdischarge, overcurrent, and short circuit protection.

The Samsung 2600 mAh 18650 battery has had multiple iterations since its release. These versions include, but are not limited to the 26F, 26H, 26M, and the 26J which is the current production version. 


  • Rechargeable & Reusable
  • Invest in a rechargeable battery that will last for years to come– this battery can be recharged 300+ times.
  • 3 Year Shelf Life
  • Stock up and store spare batteries with confidence– lithium ion batteries have a 3+ year shelf life, ensuring you always have a fresh replacement when you need it.
  • PCB Protection
  • This battery has a PCB (protection circuit board) that automatically detects and protects against overcharging, overdischarging, and short circuiting.
  • 5.2A max continuous discharge rate for mid-to-high-drain electronics, such as flashlights with ultra-bright turbo modes
  • Button top terminal great for flashlights and other portable electronics


Brand Samsung
Size 18650
Chemistry Li-ion ICR (LiCoO2)

Voltage 3.7V
Capacity 2,600mAh
Terminal Button Top
Protected Yes
Shelf Life 3 Years
Rechargeable Yes
Nominal 3.6V
Maximum 4.2V
Cutoff 2.75V
Discharge Rate
Max Continuous 5.2A
Rapid 2.6A
Standard 1.3A
Charging Time
Rapid 2.5 Hours
Standard 3 Hours
Charge Cycles 300+

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