Battery Management - Cantium Scientific MicroBio MB2 Operating Manual

Battery Management

The air blower in the MicroBio MB2 requires the use of cells that are capable
of high current drain. Low cost alkaline or budget rechargeable cells are
often not capable of delivering the required power while maintaining their
terminal voltage and the sampler may stop operating without warning.
We recommend using the NiMH cells supplied with the sampler kits, or
equivalent high quality cells with suitably low impedance. Alternatively, non-
rechargeable alkaline cells may be used, but must be high quality, such as
Duracell, Energizer or Varta industrial range. If using alkaline cells, the
battery type needs to be manually set. Please see the 'Settings' section of
this manual for instructions.
As cells age through time and use, their internal electrical resistance
(impedance) increases. This will reduce the amount of time the sampler can
be used on a single charge. Old cells may, at random, when under load drop
their terminal voltage too low and the sampler will switch off. If this happens,
the cells must be replaced. If this occurs during sampling, the sample must
be discarded and a new one taken.
All cells at the end of their life should be recycled or disposed of responsibly
in accordance with local regulations.
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