What is the Standard Voltage of Lithium Ion Batteries? Voltage Operating Range of Lithium Batteries

   Single lithium-ion battery nominal voltage of 3.7V, the normal voltage range is 2.5V-4.25V. 3.7V lithium-ion batteries generally have overcharge and overdischarge “protection plate”, such as the battery does not have a protection plate only about 4.2V charging voltage, because lithium-ion batteries ideal full-charge voltage is 4.2V, the voltage exceeds the 4.2V may be damaged batteries, charging with this method at the same time, always monitor the battery's Charge by this method and always monitor the battery's condition. The lithium batteries used in bulk on the market are lithium ternary batteries and lithium iron phosphate batteries, with different voltage ranges.

1. Lithium ternary battery

   Lithium ternary monomer nominal voltage of 3.6V, the operating voltage range is 2.5V ~ 4.2V. The corresponding voltage of the lithium battery pack is multiplied by the number of strings, for example, 10 strings of lithium ternary battery pack, the nominal voltage is 36V, the operating voltage range is 25V ~ 42V.

2. Lithium iron phosphate battery

   Lithium iron single nominal voltage 3.2V, the operating voltage range is 2.0V ~ 3.65V. Corresponding to the battery pack, the same is multiplied by the number of strings, like 15 strings of lithium iron battery pack, its nominal voltage is 48V, the operating voltage range is 30 ~ 54.75V.

What is the effect of low voltage on lithium batteries?

   Lithium batteries are recommended for long-term storage is about 70%, 3 to 6 months without use, it is recommended to carry out a cycle of charging and discharging, in favor of the life of the lithium battery pack.

If long-term storage, not used, and the voltage is very low, lithium battery materials will be affected, the chemical reaction ability will deteriorate, thus affecting the life of the lithium battery pack.

   Lithium-ion battery voltage from 2.5V to 4.2V when working, when the voltage is less than 2.5V, the battery discharge termination, at the same time because the discharge circuit is closed to minimize the current loss of the internal protection circuit, of course, the actual application due to the different internal materials, the discharge termination voltage can be in the range of 2.5V-3.0V, when the voltage is more than 4.2V, the charging circuit is terminated in order to protect battery safety.