Blastrac BMS-220 ADB Operating Manual page 13

Information about safety and maintenance form producer:
Parameter which is important for batteries is the temperature in which they work. Optimum range is
from -10⁰ C to 45⁰ C . Batteries may not be left in minimum temperature for long time. The low temperature
can make the battery freezing what can damage them. More characteristics in the table below.
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