Technical FAQs 4

Is the 21700 battery safe to use?

The 21700 battery is safe to use as compared to other types of lithium-ion batteries. This battery comes with a built-in battery management system that properly checks the conditions of the battery and avoids any issue creation. What is the working life of the 21700 battery? The 21700 battery recharged after 3 to 6 months.

What is a 21700 battery?

A 21700 battery is a high capacity lithium ion rechargeable battery. Their proper name is a “21700 cell”. The 21700 cell has voltage of 3.7v and has between 3000 mAh and 5100 mAh (mili-amp-hours). The 21700 is physically larger than an 18650 battery, and AA/AAA batteries.

What is the difference between a 21700 and a smaller battery?

One of the standout features of the 21700 is its higher capacity and energy density compared to smaller batteries. This allows it to power larger devices, such as electric vehicles and solar energy storage systems, with more reliable performance and fewer recharges. As mentioned earlier, the 21700 battery is 21mm in diameter and 70mm in length.

Is a 21700 protected battery better than an unprotected battery?

A 21700 protected battery is safer than an 21700 unprotected battery (less likely to overheat, burst or start on fire). Unprotected 21700 batteries are cheaper, but we do not recommend their use. Unprotected batteries should only be used where the load/draw and charging is externally monitored and controlled.

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