MODES OF OPERATION
OPERATIONS STEPS
Connect the power adapter DC connector to the charger and then plug the power adapter into
outlet (100-240V AC, 50/60Hz).
Insert AA or AAA battery
When a new battery is inserted and detected, the battery sign and “CHARGE” in correspond
slot will blinking. Use the UP and DOWN arrow buttons to toggle the desired mode. Press
ENTER to make the selection. If no button is pressed within five seconds, the charger will
proceed to the default mode which is charging with 1000mA rate for AA battery and 400mA rate
for AAA battery.
Inserting AA Batteries
Inserting AAA Batteries
1.
2.
3.
DisCharge Rate
mAh
DIS
CHARGE
REFRESHIST.
BREAK-INO.
REST CYCLE
DisCharge Rate DisCharge Rate DisCharge Rate
DONE
mAh
mAh
mAh
DISCHARGE
DISCHARGE
DISCHARGE
REFRESHIST.
REFRESHIST.
REFRESHIST.
BREAK-INO.
BREAK-INO.
BREAK-INO.
REST CYCLE
REST CYCLE
REST CYCLE
Capacity
Volt
Time
Capacity
Volt
Time
Capacity
Volt
Time
Capacity
Volt
Time
If CHARGE mode is selected. The charger will prompt for the charging rate by flashing “Charge
Rate”. Use the UP and DOWN button to choose the desired current. Press ENTER to confirm the
selection. Refer to the “General Battery Knowledge” section for choosing an appropriate rate.
4.
Dis
Charge Rate
mA
h
DIS
CHARGE
REFRESHIST.
BREAK-INO.
REST CYCLE
Capacity
Volt
Time
Dis
Charge Rate
mA
h
DIS
CHARGE
REFRESHIST.
BREAK-INO.
REST CYCLE
Capacity
Volt
Time
Dis
Charge Rate
mA
h
DIS
CHARGE
REFRESHIST.
BREAK-INO.
REST CYCLE
Capacity
Volt
Time
Dis
Charge Rate
mA
h
DIS
CHARGE
REFRESHIST.
BREAK-INO.
REST CYCLE
Capacity
Volt
Time
Dis
Rate
Charge
mAh
DIS
CHARGE
REFRESHIST.
BREAK-INO.
REST CYCLE
Capacity
Volt
Time
Press ENTER to
start charging
Default charging rate
for AA battery is 1000mA
for AAA battery is 400mA
Dis
Charge Rate
mA
h
DIS
CHARGE
REFRESHIST.
BREAK-INO.
REST CYCLE
Capacity
Volt
Time
ENTER
06
NC2500
05
NC2500
OPERATIONS STEPS
MODES OF OPERATION
This section explains various modes and when to use them. To enable each mode, refer to the
“Operation” section.
Charge:
Charge the battery at the selected rate. Suitable for batteries used frequently.
Discharge:
Discharges the batteries at the selected rate.
Refresh & Analyze:
Suitable for batteries stored for more than two weeks but less than 3 months or the batteries
showing poor performance. This mode can also determine the battery capacity for battery
matching. In most devices, usually two or more batteries are used together. When batteries are
used in a series, the performance is limited by the worst one. In other words, one poorly
performing battery can significantly reduce the runtime. Battery matching refers to grouping
batteries with similar “actual” capacity. To perform this, use the Refresh & Analyze mode to
determine the battery capacity. Group batteries with capacity within about +/- 5%of the rated
capacity.
The charger will charge battery to full and rest for one hour, discharge, rest one hour again then
recharge. You can select charging and discharging rate.
Break-In (Battery Forming):
New batteries and those stored for more than 3 months extended period become chemically
deactivated. Battery forming is a charge-discharge-charge cycle which forces a full charge into
the battery at a very low rate. This process activates the battery. In certain case, it needs to be
repeated two or three time.
Charges battery at 0.1C for 16 hours, rest for one hour, discharges battery at 0.2C, then
recharges again at 0.1C for 16 hours.
Cycle:
Performs charge-discharge cycle for up to 12 times. Cycle mode can remove memory effect of
rechargeable batteries. This mode will recharge battery after final cycle.
1.
2.
3.
4.
5.
Battery Rescue Steps
For batteries that do not perform favorably after using the mode recommended above, the following
sequence can be applied.
Cycle for one to three times.
If capacity is still low, use Break-In mode.
If the step 1 to step 2 shows some capacity improvement (> 10%), repeat Break-In mode for one
to three times. If no significant improvement, battery probably at end of useful life.
NiMH batteries that have been used
frequently (at least once every two weeks)
Charge
Batteries in storage for more than two
weeks but less than 3 month
Refresh & Analyze
Batteries in storage for more than 3 month
Break-In
Batteries showing poor performance
Cycle for two to three times.
Battery Condition
Mode
1.
2.
3.
