MIC-10 / MIC-30 – USER MANUAL
7.3 General principles regarding using NiMH rechargeable batteries
- If you do not use the device for a prolonged period of time, then it is recommended to remove the
rechargeable batteries and store them separately.
- Store the rechargeable batteries 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 30C.
If the rechargeable batteries are stored for a long time in a high temperature, then the occurring chemical
processes may reduce their lifetime.
- NiMH batteries withstand normally 500-1000 charging cycles These batteries reach their maximum
capacity after being formatted (2-3 charge/discharge cycles). The most important factor which
influences the lifetime of rechargeable batteries is the level of their discharge. The deeper the discharge
level of the batteries, the shorter their lifetime.
- The memory effect is limited in case of NiMH batteries. These batteries may be charged at any point
with no serious consequences. However, it is recommended to discharge them completely every few
cycles.
During storage of NiMH batteries they are self-discharged at the rate of approximately 30% per month.
Keeping rechargeable batteries at high temperatures may accelerate this process even 100%. In order
to prevent excessive discharge of rechargeable batteries, after which it would be necessary to format
them, it is recommended to charge them from time to time (even if they are not used).
- Modern fast chargers detect both too low and too high a temperature of rechargeable batteries and
react to the situation adequately. Too low temperature should prevent starting the process of charging,
which might irreparably damage rechargeable batteries. An increase of the temperature of the
rechargeable batteries is a signal to stop charging and is a typical phenomenon. However charging at a
high ambient temperature apart from reducing batteries' lifetime causes an accelerated increase of their
temperature and the result is that the batteries are not charged to their full capacity.
- Please note that when the batteries are charged with a fast-charger they are charged only to approx.
80% of their capacity - better results can be achieved by continuing charging: the charger enters trickle-
charging mode and during the next few hours batteries are charged to their full capacity.
- Do not charge or use rechargeable batteries in extreme temperatures. Extreme temperatures reduce
the lifetime of batteries and rechargeable batteries . Avoid placing devices powered by rechargeable
batteries in very hot environments. The nominal working temperature must be absolutely observed.
8 Cleaning and maintenance
NOTE!
Apply solely the maintenance methods specified by the manufacturer in this manual.
The casing of the meter may be cleaned with a soft, damp cloth using all-purpose detergents. Do
not use any solvents or cleaning agents which might scratch the casing (powders, pastes, etc.).
The electronic system of the meter does not require maintenance.
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