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6. Information about Battery Passivation
Many of Netvox devices are powered by 3.6V ER14505 Li-SOCl2 (lithium-thionyl chloride) batteries that
offer many advantages including low self-discharge rate and high energy density.
However, primary lithium batteries like Li-SOCl2 batteries will form a passivation layer as a reaction
between the lithium anode and thionyl chloride if they are in storage for a long time or if the storage
temperature is too high. This lithium chloride layer prevents rapid self-discharge caused by continuous
reaction between lithium and thionyl chloride, but battery passivation may also lead to voltage delay when the
batteries are put into operation, and our devices may not work correctly in this situation.
As a result, please make sure to source batteries from reliable vendors, and the batteries should be produced
within the last three months.
If encountering the situation of battery passivation, users can activate the battery to eliminate the battery
hysteresis.
6.1 To determine whether a battery requires activation
Connect a new ER14505 battery to a 68ohm resistor in parallel, and check the voltage of the circuit.
If the voltage is below 3.3V, it means the battery requires activation.
6.2 How to activate the battery
a. Connect a battery to a 68ohm resistor in parallel
b. Keep the connection for 6~8 minutes
c. The voltage of the circuit should be ≧3.3V
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