4. How to Confirm Charging Current
It is very important to know the maximum
charging current of the battery as
excessive current could influence the life
span of battery and damages the battery.
In addition, excessive current will cause
heating and even explosion of the battery
during the charging process.
The charging and discharging capacity of
battery is usually marked with C value.
Multiplying the charging C value and
battery capacity equals to the maximum
charging current supported by the battery.
For example, for a 2000 mAh battery with a
charging capacity of 5C, the maximum
said to suffer from memory effect. They prefer complete cycles; fully charge then use until
empty, do not recharge before storage-allow them to self-discharge during storage. NiMH
batteries have less memory effect than NiCd.
• The Lithium battery prefers a partial rather than a full discharge. Frequent full discharges
should be avoided if possible. Instead, charge the battery more often or use a larger
battery.
Those warnings and safety notes are particularly important. Please follow the
instructions for a maximum safety; otherwise the charger and the battery can be
damaged violently. And also it can cause a fire to injure a human body or to lose the
property.
voltage level: 1.2V/cell
allowable fast charge current: 1C~2C
depends on the performance of cell
discharge voltage cut off level: 0.85V/cell(NiCd), 1.0V/cell(NiMH)
voltage level: 3.6V/cell
max.charge voltage: 4.1V/cell
allowable fast charge current: 1C or less
min.discharge voltage cut off level: 2.5V/cell or higher
voltage level: 3.7V/cell
max.charge voltage: 4.2V/cell
allowable fast charge current: 1C or less
discharge voltage cut off level: 3.0V/cell or higher
voltage level: 3.3V/cell
max.charge voltage: 3.6V/cell
allowable fast charge current: 4C or less(e.g. A123M1)
discharge voltage cut off level: 2.0V/cell or higher
voltage level: 3.8V/cell
max.charge voltage: 4.35V/cell
allowable fast charge current: 1C or less
min.discharge voltage cut off level: 3.0V/cell
voltage level: 2.0V/cell (Lead-acid)
max.charge voltage: 2.46V/cell
allowable fast charge current: 0.4C or less
discharge voltage cut off level: 1.50V/cell or higher
07
Expert
