18650 Button-Top Rechargeable Batteries with PCB [2-Pack]

18650 Lithium-ion Rechargeable Batteries

High powered 18650 lithium flashlight batteries offering 3000mAh of reliable power. The EcoGear FX 18650 button top batteries unique design packs an amazing amount of powerful energy. This is our best 18650 battery as it provides dramatically increased longevity, low self-discharge, efficiency and optimized usage time. The choice battery for LED tactical flashlights and battery-powered professional gear.

When you think of batteries, you might recall the widely used AA or AAA alkaline batteries found in store shopping aisles. However, old, outdated alkaline technology cannot match the power of lithium-ion batteries. These 18650 PCB lithium rechargeable batteries deliver the power needed and offer up to 500 charging cycles.

The Ultimate 18650 Battery for Flashlights and More

Whether you need to get the maximum power out of your LED flashlight, video doorbell, camping lantern, work lights, or cordless power tools, choosing the right cell is vital. Crucially, while some of these are high-drain electronics, lithium rechargeable batteries are versatile enough to power them all. In fact, this same advanced technology is trusted in high-stakes aerospace applications, ranging from radio-controlled models and model aircraft to the Mars Curiosity rover itself. The 18650 button top battery is protected with a small built-in electronic circuit which prevents overcharging and over-discharging.

Features and Benefits:

• Integrated PCB Protection

• 18650 button top battery – cylindrical, rechargeable

• Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V

• Higher energy density and lower weight than many other 18650 button top rechargeable batteries

Battery Specifications:

• Capacity: Nominal: 3000mAh, Minimum: 2600 mAh

• Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V

• Nominal Voltage: Average 3.7V

• Cut-off Voltage: 2.5V

• Internal Impedance: less or equal to 180 milli-ohm (with PTC)

• Cycle Performance: 90% of initial capacity at 400 cycles

• Cycle life: > 500 cycles

• Charge: Current = 0.5C (~1500mA) Voltage = 4.2 V End Current = 0.01 mA

• Discharge: Current = 0.5C (~1500mA) End Voltage = 3.0V

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Product Dimensions

• Diameter: 18.5 mm

• Length: 68.7 mm

While these are the same lithium-ion batteries that were once top-selling on Amazon, the marketplace landscape has shifted significantly. Unfortunately, Amazon no longer allows the sale of many standalone cylindrical lithium-ion cells, specifically including the 18650 button top battery. Furthermore, due to severe thermal and safety risks, these loose batteries are strictly NOT recommended for high-drain devices such as vaping products. Sold as a 2-pack or available at wholesale bulk pricing.