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doseBadge User Manual
Page 39
Cycle Charge of the doseBadge Bat
tery
The CU:110A Charger Unit provides a Discharge/Charge cycle that allows the
performance of the battery to kept at an optimum level.
This cycle fully discharges the battery before charging. Please note that this is not the
normal operation of the CU:110A Charger Unit.
To carry our this charge cycle, connect the doseBadges to the CU:110A Charger and
connect the power supply.
Press the Discharge/Charge cycle button located on the bottom of the charger as shown
below.
If you press the button through the hole on the bottom of the charger, it will discharge
all badges that are currently connected, then charge them. This can take up to about 6
hours depending on the battery type and initial charge state.
The internal NiMH (Nickel Metal Hydride) battery, like all rechargeable batteries, will
self discharge. When arranged into a battery the individual cells within the battery, not
being identical, will not all discharge at the same rate.
This means that the first cell to discharge may be forced into a 'reverse current'
situation by the other cells and will be damaged. If the batteries are simply left
discharged, there is no way of preventing this as the discharge is within the cell.
Even if they are removed from the doseBadge the self-discharge will still occur. To
prevent this, it is recommended that the badge be charged monthly when not being
used for measurements.
If the doseBadges are left on a charger without power, the doseBadges will discharge.
To ensure that the doseBadges do not discharge, remove them from the Charger unit
when the Charger is not connected to the power supply.
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