Comparison Between 18650 vs 21700 Battery
by John Smith LearnerWe often get questions about the
differences between common battery types. Hence the topic! For more information
on this. In this topic, we'll talk about the main differences between the two
most common types of flashlight batteries. So after reading this thread about 21700
vs 18650 Battery, you can easily decide which type of battery is best for
you.
Battery Power Difference 21700 And 18650
The main difference between 21700
and 18650 batteries is their size. Since the 21700 battery is much larger than the
18650 battery, it also has a larger capacity. An 18650 battery has a maximum
capacity of about 3500 mAh, while a 21700 battery can output up to 5000 mAh. Of
course, more power means more burning hours. This makes the 21700 ideal for
extended use when you can't charge the battery in between. For example, imagine
a police officer who has to deal with traffic all night. Depending on the type
of lighting you use, you may need to pay attention to the brightness of the
lighting at night when using 18650 batteries. It would be very easy with a
21700 battery.
More Space, More Power
In addition to the power
differences, the larger 21700 also has an advantage. Because it is larger,
there is more room to improve the cooling and power characteristics of the
battery. 21700 batteries with a capacity of up to 1400 watts. 18650 stops at
800 watts. The difference in capacity ensures that devices using the 21700 battery
have more power. Thus, a flashlight with a 21700 battery will burn longer and
brighter than a flashlight with an 18650 battery.
An example of the difference between power and ability
Here is a good example of the
difference between the two types of batteries. We tested it with the Fenix HT18
hunting flash, 1500 lumens. We used this flashlight because it easily supports
both types of batteries with the help of mounts.
Fenix HT18 light mode with 21700
Li-ion battery
• Turbo: 1500 lumens, burning
time approx. 1:40 hours*
• High: 500 lumens, burning time
approx. 4:15 hours
• Medium: 150 lumens, burning
time approx. 20:15 hours
• Low: 30 lumens, burn time 61
hours
• Strobe: 1500 lumens
Fenix HT18 light mode with 18650
Li-ion battery
• Turbo: 1100 lumens, burning
time approx. 1:40 hours*
• High: 500 lumens, burning time
approx. 2:15 hours
• Medium: 150 lumens, burning
time approx. 14:10 hours
• Low: 30 lumens, burning time
approx. 53 hours
• Strobe: 1100 lumens
* The burning time of the highest
light position is calculated when the lamp is switched on in the highest
position. After 2-3 minutes, the light will automatically switch to low mode
due to temperature adjustment.
Advantages of 18650 batteries
If you consider all of the above,
the 21700 battery seems to be better. On paper this is true, but the 18650 is
still a good choice. The 18650 battery is small in size and light in weight.
18650 batteries are also more economical. The amount of light that an 18650
battery can handle is large, and an 18650 battery is much cheaper than its big
brother. In terms of capacity and power, the 18650 battery is more than
adequate for average flash use.
Conclusion
Sponsor Ads
Created on Aug 12th 2023 08:24. Viewed 161 times.