5
1
1.2. Function of the Battery
The battery management system, which is built-in the battery, provides the following three major
functions: “residual capacity management”, “battery information communication”, and “service”.
(1) Residual Capacity Management
The battery management system uses an “amperage
integration system” to manage the residual capacity,
and a “capacity learning system” to monitor the state
of deterioration of the battery in the form of capacity.
The indicator lamps located on top of the battery
indicate the residual capacity in 6 stages.
Residual Charge Indication
When the indicator switch is pressed, the 5
indicator lamps turn ON for 5 seconds to show the residual capacity of the battery in 6 stages.
(The last segment consists of 2 stages, ON and blinking.)
Battery Deterioration Indication
When the battery deteriorates below 80% of the initial capacity, the topmost segment of the
indicator will no longer turn ON after the battery is charged. As the battery deteriorates further
and its capacity decreases below 60%, the fourth segment will also stop turning ON.
CAUTION
If the capacity gauge shows that the battery has deteriorated prematurely,
perform a simple diagnosis in the service mode, which will be described later.
CAUTION
If 1 segment of the capacity gauge blinks (residual capacity warning), instruct
the user to immediately charge the battery or replace it with a spare battery.
• After the battery deteriorates, the residual capacity gauge might not fully turn
ON even after the battery is charged.
• At times, the battery might recover after the capacity gauge had shown the
battery to be deteriorated. This occurs when the battery becomes more active
due to the ambient temperature or the use mode.
• If the battery deteriorates below 60%, its charge-discharge characteristics
become unstable. Then, the battery capacity indicator will be unable to
accurately indicate the residual capacity. In this case, recommend that the
user replace the battery.
• The residual capacity gauge will be reset to 0 if the fuse is blown or removed.
It will revert to the normal indication after the battery is charged.
NOTE
Capacity
indicator
lamp
Indicator
switch
80–100%
40–60%
0–20%
20–40%
60–80%
(Blinks at 0 to 10%)
Capacity guide
(new state)
Summary of Contents for ESB1
Page 31: ...Memo ...
