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Is Forerunner 55 battery enough for a 42km trail running?

Does anyone complete a trail running (Marathon distance) within 12 hours and your watch is still alive? Should I bring a powerbank in my pocket? If I pause recording and charge the battery for a while, will I continue to record my track log after charging, or will I record a new track log altogether?

Top Replies

rentagreement over 2 years ago in reply to JoeD +1

that is clearly not normal, i am at about 8-10% per hour.

Generally you can also switch to GPS only to save battery.

All Replies

0 rentagreement over 2 years ago

the battery should last through 12h GPS use without recharge

0 JoeD over 2 years ago

If you wear a HR Belt you can Charge while running.

If you don't wear a belt you can Stop Pause and Charge.

My Watch is new and It does not Last 12 Hours on GPS and Bluetooth. 2 Hours = 25% Battery Drain.

0 rentagreement over 2 years ago in reply to JoeD

that is clearly not normal, i am at about 8-10% per hour.

Generally you can also switch to GPS only to save battery.

0 Mam Nho Em over 2 years ago

Than

0 Mam Nho Em over 2 years ago

Thank youy guys for your reply. I will take notice to this

0 8904542 over 2 years ago

I would like a Fenix, but not going to spend over a grand on two-three year old tech. So I'm waiting for the 7.

Now that I'm doing trail runs in remote areas, I could really benefit from being able to send gpx tracks to my watch.

This may have saved me from getting lost developerbook during a race last weekend where the trail was poorly marked.