OH1 low battery indication with certain Polar wrist units

Applies to: OH1

When using OH1 as a heart rate sensor with certain Polar wrist units you’ll get a low battery indication when 40 percent of the OH1 battery is left. However, there is no need to stop your session, you still have a good couple of hours of battery left. This is just to let you know it may be a good idea to charge your OH1 after your session.

The following Polar wrist units will give you the low battery notification when 40 percent of the OH1 battery is remaining:

• A370
• M200
• M400
• M430
• M460