Battery Module And Care; The Battery Module; Battery Charging - Megger DLRO-10 Guide De L'utilisateur

BATTERY MODULE AND CARE

THE BATTERY MODULE

The battery module contains nickel-metal-hydride cells and has a built-
in battery-management system that controls charging and monitors
discharge. This provides a high capacity, low-weight battery system, which
can be recharged at any time. It is not possible for the user to over-charge
or over discharge the battery. For your own convenience it is best to
charge it regularly to keep it topped up, but leaving it in a discharged state
will do no harm.
On the front of the battery module are two buttons and a
10-segment LED display.
Battery Condition
Slow Charge
To find the amount of charge in your battery module, whether connected
to your DLRO or separate, press the Battery Condition Button. The Battery
State indicator will light between
1 and 10 segments signifying between 10% and 100% charge respectively.
After a few seconds this display will automatically go out.

BATTERY CHARGING

Please note - The battery should only be charged within the
temperature range 0°C to 45°C. Fast charging will not be allowed
if the temperature is below 10°C. Fast charging causes the
temperature of the battery to rise. If the temperature exceeds
45°C the charging rate will be reduced automatically.
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Battery State Indicator
To charge the battery, your battery module must be removed from the
instrument. Remove the module by pressing on the raised circular area of
the retaining clips and pull the top of the clip away from the instrument
body. The module now unplugs from the base of the instrument.
Plug in the charger or connect to a 12 volt vehicle-type battery using the
'cigar lighter' lead provided. The LED "Battery State" indicator will light
and show movement when the battery is charging. The battery may be
recharged before it has been fully discharged. It will normally be recharged
to 90% of capacity within 21/2 hours. Full charge may take up to 4 hours
before indicating that the battery is full depending on the initial state of
the battery. When charging is complete the battery management circuitry
will switch off so that over-charging is prevented.
Your battery module can be safely used in a partially charged state and will
not suffer if stored in a discharged state. However, you may wish to have
a spare battery that can be interchanged with the one in use to provide
continuous use of your DLRO.
As the battery ages, it may start to loose its capacity. In this case the battery
module has a slow charge facility which is activated by pressing the Slow
Charge button while switching on the charger supply until the indicator
bars start to move. This method of charging can take up to 48 hours and
so is best reserved for a weekend or a period when the instrument is not
required to be used.
A fully charged battery, even if not used, will self discharge over a period of
several weeks (faster at higher temperatures). Always check the "Battery
State" indicator before starting work. A fully charged battery will light all
segments. A fully discharged battery will light no segments.