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they are put in, the voltage of every battery should be basically the same,
and the difference is not higher than 50mV. Otherwise, the batteries
should be equalizing charged or discharged prior to using.
The usage of batteries should be based on the instruction. General
speaking, low temperature resistant batteries are used in winter. When the
ambient temperature is over 45 ℃, the battery temperature will be higher
than 65℃ due to the heat produced by the circuit. Therefore, it is
necessary to choose high temperature resistant batteries.
1.2 How to Install Batteries
Tools needed: a hexagon screwdriver with the diameter of 2mm
Step 1: put KC901S flatwise in the workbench, and take down the two
screws from the tail( Chart1-1).
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