5.2.1 How to connect a backup battery
The module allows the use of lithium rechargeable battery or supercapacitor as backup battery.
The connection with module is obtained by connecting directly the backup battery to the +Vcoin signal (pin 18 floating if not used).
Note:
The module is already designed to manage the charge of backup battery.
For further details on the power supply refer to "i.MX 6ULL" Data Sheet and Reference Manual.
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