What are the possible reasons for the zero voltage or low voltage of the single cell?

01) External short circuit or overcharge or reverse charge of the battery (forced overdischarge);

02) The battery is continuously overcharged by high rate and high current, resulting in the expansion of the battery pole core, the direct contact of the positive and negative poles, and the short circuit;

03) Internal short-circuit or micro-short circuit of the battery, such as: improper placement of positive and negative plates, resulting in short-circuit of the pole pieces, or contact of the positive and negative pieces, etc.

What are the possible reasons for the zero voltage or low voltage of the battery pack?

01) Whether a single battery has zero voltage;

02) The plug is short-circuited or open-circuited, and the connection with the plug is not good;

03) Desoldering and virtual welding of lead and battery;

04) The internal connection of the battery is wrong, and the connection piece and the battery are leaked, soldered, and desoldered;

05) The internal electronic components of the battery are incorrectly connected and damaged.

What are the possible reasons why the battery and battery pack cannot be charged?

01) The battery has zero voltage or there is a zero-voltage battery in the battery pack;

02) The battery pack is connected incorrectly, the internal electronic components and the protection circuit are abnormal;

03) The charging equipment is faulty and there is no output current;

04) The charging efficiency is too low due to external factors (such as extremely low or extremely high temperature).

If you have any requirements or any kind of query regarding the lithium battery solutions for your desired applications, feel free to communicate with our dedicated team at any time at marketing@everexceed.com.