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Refresh Mode:
The rechargeable battery is charged and discharged repeatedly to
optimize to its maximum capacity. Old rechargeable batteries that have not been used
for a long period of time can be restored to their rated capacity. Depends on the selected
charge current, it can take tens hours or even days time before complete.
Stage 1
Discharge.
Discharging
current
Discharging
current
Discharging
current
Discharging
current
Stage 2
Charge
Charging current
Charging current
Charging current
Charging current
Stage 3
The refresh process is over, trickle charge