Battery cell 21700 nominal voltage

2170s may have a voltage range between 2.5 volts and 4.2 volts, or a charging voltage of 4.2 volts, but the nominal voltage of a standard 21700 is 3.7 volts, just like the 18650s batteries. There are two types; protected and unprotected. We absolutely recommend protected 21700 batteries. Protected 21700 batteries generally have a button top.

The 21700 is physically larger than an 18650 battery, and AA/AAA batteries. 2170s may have a voltage range between 2.5 volts and 4.2 volts, or a charging voltage of 4.2 volts, but the nominal voltage of a standard 21700 is 3.7 volts, just like the 18650s batteries. There are two types; protected and unprotected.

This battery comes with Lithium Manganese Oxide chemistry, and the nominal voltage for the battery is 3.6 to 3.7 volts per cell, and the high recommended charging voltage for the battery is 4.2 volts. The IMR battery comes with a small capacity and has features for providing larger current values. INR 21700 batteries

21700 protected batteries have an electronic circuit. The circuit is embedded in the cell packaging (battery casing) that protects the cell from “over charge”, heat or “over discharge”, over current and short circuit. A 21700 protected battery is safer than an 21700 unprotected battery (less likely to overheat, burst or start on fire).

There are hundreds of 21700 battery datasheets available belonging to a different models of 21700 batteries, there are lots of different models available varying in current rating and charge holding capacity.

The 21700 battery utilizes advanced lithium-ion chemistry, which provides a balance between energy density, safety, and longevity. Depending on the specific chemistry, such as NMC or LCO, the energy density of the 21700 ranges from 250 Wh/kg to 300 Wh/kg.