Users Manual Part 2

l Rechargeable Main Battery
l Non-rechargeable Backup Battery. (Large external battery.)
Checking battery voltages
To check the SSPM battery voltages:
1. On the SSPM, quickly insert and remove a Diagnostics card from the EMV card reader to enter Diagnostics mode.
2. Press + Time (more time) / — Time (less time) to scroll to Voltages.
3. Check the voltage of the Non-rechargeable Backup Battery.
If the Non-rechargeable Backup Battery measures < 3100 mV, replace it with a new battery.
4. Check the voltage of the Rechargeable Main Battery.
If the Rechargeable Main Battery measures < 3100 mV, click here to view the task topic How To Charge the M5™ Main Battery.
5. If the Non-rechargeable Backup Battery and the Rechargeable Main Battery both measure > 3100 mV, deploy the M5™ SSPM for
use, or place it into Sleep state for future use.
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