The Cree XP-E LED flashlight is an excellent tool for outdoor enthusiasts, adventurers, and professionals. The light source is a USA-made Cree XP-E LED that produces 300 lumens of brightness with a power consumption of 3W. The flashlight is made of 6061-T6 aviation-grade aluminum, making it lightweight and durable.

One of the best features of the Cree XP-E LED flashlight is its distance range of 200-300 meters (650-980 feet), making it a reliable source of light in the dark. It is also waterproof and shockproof, meaning that it can withstand harsh weather conditions and drops.

To power the flashlight, you can use either a single 18650 rechargeable Li-ion battery or two CR123 lithium batteries (not included). The runtime of the flashlight on high mode is about 2-3 hours, which is long enough for most outdoor activities.

The power button is located in the tail cap, making it easy to access and operate. The Cree XP-E LED flashlight also has five operating modes, including high, middle, low, strobe, and SOS. This feature makes it versatile, and you can adjust the light output according to your needs.

Included with the flashlight are a lanyard wrist strap and two 18650 3400mAh rechargeable batteries, which are manufactured in Japan by Panasonic. These batteries have a nominal voltage of 3.7 volts and a capacity of 3400 mAh, making them ideal for high-drain devices like flashlights.

One of the advantages of using rechargeable batteries is that they are environmentally friendly and cost-effective in the long run. Additionally, rechargeable batteries have no memory effect, meaning that they can be charged and discharged without losing their capacity.

The 18650 rechargeable batteries also have a long storage life, making them suitable for emergency situations. They are lightweight and have a high energy density, which means that they can power high-drain devices like flashlights for extended periods.

The charger included with the Cree XP-E LED flashlight is a versatile and efficient device. It can charge various types of batteries, including 26650, 22650, 18650, 18490, 18350, 17670, 17500, 14500, 10440, and 16340.

The charger has a large LCD screen that displays information about the charging process, including the charging status, battery type, voltage, current, and capacity. This feature makes it easy to monitor the charging process and ensure that the batteries are charged correctly.

The charger also has a power bank function, which allows you to use one fully charged battery to discharge 5V and charge mobile phones and other devices. This feature is useful in emergency situations where you need to charge your phone, but you don't have access to a power outlet.

The charger has a Micro USB 5V socket input, which makes it easy to charge the batteries from a USB port on a laptop, power bank, or wall adapter. The charger has reverse connection protection, short circuit protection, and over-voltage protection, ensuring the safety of the batteries during the charging process.

The two-hour charging time of the batteries is relatively short, making it easy to recharge them before your next outdoor adventure. The weight of the charger without batteries is 109g, making it lightweight and easy to carry in your backpack or bag.

In conclusion, the Cree XP-E LED flashlight battery and charger are excellent accessories for outdoor enthusiasts, adventurers, and professionals. The rechargeable batteries are cost-effective, environmentally friendly, and have a long storage life. The charger is versatile, efficient, and has a power bank function, making it a useful tool in emergency situations.