What are the best 18650 batteries for flashlight?

A super bright flashlight is an indispensable product in the life and work of some people. The flashlight can keep working continuously, because of the power supply from the 18650 battery.

This is a specialized battery model for the super bright flashlight, radio, or some flat 18650 rechargeable batteries also used for power backup battery of phone and laptop.

Let’s find out more about “What are the best 18650 batteries for a flashlight?” today.

What is the 18650 battery for the flashlight?

If you are a genuine technical person, you probably can’t un-know the 18650 battery because of its great function. It is designed and uses fully rechargeable Li-ion technology and used for a variety of devices.

The 18650 battery is really the biggest advantage of this battery. Its design is larger than conventional batteries, the 18650 battery is designed to have a diameter of 18cm and a length of 65mm.

Typically, 18650 batteries will have a voltage of about 3.7 ~ 4.2V that is very often used in industry, especially very familiar to technicians. The 18650 battery is the standard battery format that is used a lot in flashlight or Laptop battery cells.

Here we will give some basic information about the battery and demonstrate that this is not a battery only for technicians.

The 18650 battery specifications

The name of 18650 battery is taken from the design of the diameter and radius of this type of battery. As it is larger than conventional mini batteries, the 18650 battery is often used in backup battery devices, Laptop battery cells, electronic cigarettes, and in particular flashlight…

Here we will take a basic example of 18650 battery for those types of devices.

  • The 18650 rechargeable battery for electronic cigarettes has a higher discharge rate than the other types of normal discharge batteries of the battery is 15A, 20A, 30A, …
  • 18650 rechargeable batteries when used for electronic cigarettes often have no protection circuitry so it is often shorter and easier to use.
  • With a flashlight, most need to have high-discharge battery components, so it is not advisable to use the low-capacity batteries (1600mAh – 2600mAh) rather than choose ones with the high discharge current (2300mAh – 3600mAh).
  • When using batteries for flashlight which usually need protection circuit, 18650 battery cell without normal protection circuit will not be recommended by the company

18650 batteries for flashlights

It is recommended to use genuine 18650 batteries with protection circuits. Batteries of light manufacturers or battery companies such as AW, Orbtronic, Fenix, KeepPower, Nitecore, Surefire …will go with genuine cells.

If using a battery cell should use famous brands such as Panasonic, Samsung, LG …

  • When not using the flashlight for a short time, you should turn the light on the lock mode, or loosen the light’s tail to avoid contact with the battery. If you do not use the flashlight for a long time, remove the battery and store it.
  • Do not leave the battery (and flashlight) in hot, direct sunlight, or in high temperatures (such as in a car in the sun) or too cold. The ideal temperature of about 20-25 degrees is suitable.
  • The battery will automatically discharge for a long time. Therefore, do not leave the battery for too long without using it, about 3-6 months, you should take the battery to charge once to recharge the battery.
  • Keep it out of reach of children, do not suck, bite battery …
  • Should charge 18650 batteries with a good battery charger, have self-disconnection. When charging, keep batteries and chargers away from combustible objects
  • It is recommended to use genuine batteries that come with a flashlight with a charging circuit to ensure proper battery size and compatible battery design for each product.

The best 18650 batteries for the flashlight

Panasonic 18650 Battery

This is currently the most popular 18650 battery from Japan on the market. The battery is usually made from lion material, which helps the battery with high capacity, long use time.

This famous battery has a great capacity of up to 3400mah. You are able to recharge it up to 1000 times.

  • Capacity: 3400mAh
  • Discharge current: 10A
  •  Size: 18650
  •  Dimensions range: 18 mm x 65 mm / capsule
  •  Voltage: 3.7V, when fully charged can reach 4.2v
  •  Manufacturer: Panasonic
  •  Origin: Japan

18650 Ultrafire battery

With a voltage of 3.7V and a capacity of 40000mAh, 18650 Ultrafire battery is suitable for use with rechargeable battery devices with equivalent voltages such as flashlights, electronic devices, ensuring maximum safety during use.

Moreover, this battery has a protection circuit against overcharging and discharging, preventing explosion or swelling battery during the long-lasting use, basically ensuring safety for users.

  •  Capacity: 4000mAh
  •  Discharge current: 10A
  •  Size: 18650
  •  Dimensions range: 18 mm x 65 mm / capsule
  •  Voltage: 3.7V, when fully charged can reach 4.2v
  •  Manufacturer: UltraFire
  •  Origin: China

Battery 18650 Akasha

Battery 18650 Akasha is commonly used in industrial equipment, super-bright flashlights …The 18650 Battery 3.7V is produced on modern technology lines, does not contain toxic chemicals, completely friendly to the environment.

  • Capacity: 6000mAh
  • Discharge current: 10A
  • Size: 18650
  • Dimensions range: 18 mm x 65 mm / capsule
  • Voltage: 3.7V (when fully charged can reach 4.2v)
  • Manufacturer: Akasha
  • Origin: China

Final words

Each battery pack always has a warning that users should keep it out of reach of children since chemical elements in the battery itself are very harmful to human health.

Besides, when the batteries are not used anymore, you should store them and put them in the right place to avoid discharging directly into the environment because the components in the battery itself are extremely toxic.

Finally, you should choose reputable addresses to buy 18650 batteries. To know your device should use 18650 battery with how much capacity, you have to take the device to the store to be tested to see which battery is the most suitable.

Through the above article What are the best 18650 batteries for the flashlight, you already know which 18650 battery is the best, right? Thank you for reading.