MRU-200
● MRU-200-GPS – USER MANUAL
49
6.5
Discharging of accumulators
In order to guarantee proper functioning of the accumulators (charge indications) and prolong
their durability, it is recommended to charge them from zero from time to time. Proceed as follows in
order to discharge the accumulators:
Press
MENU
and highlight
Meter settings
. Press
ENTER
.
Use buttons
and
to select
Battery discharging
,and press
ENTER
.
Read the displayed text and accept.
Discharging, which may last up to 10 hours depending on the level of the charge of the package,
is signalled with the following message:
Discharging of accumulators in progress
.
6.6
General principles regarding using Ni-MH accumulators
- If you do not use the device for a prolonged period of time, then it is recommended to remove the
accumulators and store them separately.
- Store the accumulators in a dry, cool and well ventilated place and protect them from direct sunlight.
The temperature of the environment in the case of prolonged storage should not exceed 30
C. If the
accumulators are stored for a long time in a high temperature, then the occurring chemical processes
may reduce their lifetime.
- Accumulators Ni-MH resist normally 500-1000 charging cycles. The accumulators reach their maxi-
mum capacity after being formatted (2-3 charge and discharge cycles). The most important factor
which influences the lifetime of an accumulator is the depth of discharge. The deeper the discharge
of the accumulator, the shorter its lifetime.
- The memory effect is limited in the case of Ni-MH accumulator. These accumulators may be
charged at any point with no serious consequences. However, it is recommended to discharge them
completely every few cycles.
- During storage of Ni-MH accumulators they are discharged at the rate of approximately 30% per
month. Keeping accumulators at high temperatures may accelerate this process even 100%. In order
to prevent excessive discharge of accumulators, after which it would be necessary to format them, it
is recommended to charge the accumulators from time to time (even if not in use).
