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ePower

Description

ePwr +Grade</p><p>Is a cycling estimated power for all watch types. This is the same power calculation that is used in the DozenCycle (edge, fenix5, fr735xt, fr935xt and VAHR), but packaged as a simple data field. This is a companion datafield for DozenCycle and watches with IQ version 1.3/1.4.</p><p>Click the "More" link to expand this description page.</p><p></p><p>Provides two Custom IQ G...

What’s New

Donations (help keep my effort going) paypal.me/fbbbrown</p><p>in Development: none</p><p></p><p>v2.1 adds a selection for power reading when cadence is zero, better power readings when flat.</p><p>v2.0 adds Edge 1030 and VivoActive 3, zeros power when stopped pedaling, Display and graphing Grade updates.</p><p>v1.5_ adds D2 Charlie and Approach S60, adds IQ estimate Max Power and correction...

Additional Information

  • Approach® S60 Approach® S60
  • D2™ Bravo D2™ Bravo
  • D2™ Bravo Titanium D2™ Bravo Titanium
  • D2™ Charlie D2™ Charlie
  • Descent™ Mk1 Descent™ Mk1
  • Edge® 1000 Edge® 1000
  • Edge® 1030 Edge® 1030
  • Edge® 520 Edge® 520
  • Edge® 820 Edge® 820
  • Edge® Explore 1000 Edge® Explore 1000
  • Edge® Explore 820 Edge® Explore 820
  • ForeAthlete® 230J ForeAthlete® 230J
  • ForeAthlete® 235J ForeAthlete® 235J
  • ForeAthlete® 630J ForeAthlete® 630J
  • ForeAthlete® 735XTJ ForeAthlete® 735XTJ
  • ForeAthlete® 920XTJ ForeAthlete® 920XTJ
  • Forerunner® 230 Forerunner® 230
  • Forerunner® 235 Forerunner® 235
  • Forerunner® 630 Forerunner® 630
  • Forerunner® 735XT Forerunner® 735XT
  • Forerunner® 920XT Forerunner® 920XT
  • Forerunner® 935 Forerunner® 935
  • fēnix® 3 fēnix® 3
  • fēnix® 3 HR fēnix® 3 HR
  • fēnix® 5 fēnix® 5
  • fēnix® 5S fēnix® 5S
  • fēnix® 5X fēnix® 5X
  • fēnix® Chronos fēnix® Chronos
  • Oregon® 7 Series Oregon® 7 Series
  • Rino® 7 Series Rino® 7 Series
  • vívoactive® vívoactive®
  • vívoactive® 3 vívoactive® 3
  • vívoactive® HR vívoactive® HR
Average Rating: (9 Ratings)

reiniaustirol
November 3, 2017 | Version 2.1-upd

hello, the power in flat is still very low for me ........... 36 km / h ....... approx. 80 watts ????

reiniaustirol
October 26, 2017 | Version 2.1

e-Power is the best app, thank you ......... but in the flat it shows too little performance, is the correct? Thanks in advance.

Developer Reply
October 27, 2017, fbbbrown

Thanks for the review, I'm looking into different calculations for estimated power.

xuxumatu
September 29, 2017 | Version 2.1

nice update about cadence but estimated power is still very low on flat maybe you should compare the formula with de omnifield https://www.gribble.org/cycling/power_v_speed.html

Developer Reply
October 23, 2017, fbbbrown

Thanks for the information, i will look into this approach.

abacaxi
September 27, 2017 | Version 2.0

Previously rated 5 stars but now I only get a zero reading and an empty curve because I don't have a cadence sensor. Same with the competing apps so I guess I'm left with nothing. Ironically since I ride fixed gear I can't stop pedaling no matter what. ::

Developer Reply
September 27, 2017, fbbbrown

Sorry i will make that an option to select!

xuxumatu
September 7, 2017 | Version 1.5_

very bad calculation omni bike, vpower, power4bike, has better calculation it needs 10 second interval, not to calculate when not pedaling and the omni bike formula on flat

Developer Reply
September 27, 2017, fbbbrown

I made the change to zero power when zero cadence in v2.0, im going back that out of the code and make it a configurable option.

abacaxi
August 26, 2017 | Version 1.4-upd

Works well. Saving max and average power to garmin connect would be nice. The vpower datafield does, but doesn't work for me for other reasons. I would assume that calories based on this value would also be interesting to know.

lorosuesa
July 7, 2017 | Version 1.4

perfect! can you do a version por MTB? I have a road bike and MTB and the estimated power is different. thanks

Developer Reply
July 11, 2017, fbbbrown

Thanks for the review and yes, contact me directly.

Yves-Trinidad
June 25, 2017 | Version 1.4

Cette application permet de gérer beaucoup de paramètre, comme la surface de contact, le profil de l'athlète, une estimation du rendement... Toutefois l'estimateur de puissance se base essentiellement sur les accélérations et décélérations ou en fonction de la pente ou de la descente. Sur le place à vitesse constante, même à 40km/h, il affichera 50W. Puisque la montre est connecté au téléphone il devrait pouvoir avoir accès à la météo et connaître le sens du vent et ainsi mieux estimer la puissance. C'est donc bien ce qu'il propose mais ça reste énormément perfectible.

Developer Reply
June 26, 2017, fbbbrown

Thanks for the review, but getting internet wind speed is very unreliable. And would add another unknown variable that could cause eratic results. Maybe if Garmin invented a ANT+ wind speed sensor?

mark_brown
June 17, 2017 | Version 1.4

Great Companion app to Dozen Cycle Estimate Power and %Grade are ~95% accurate compared to other riders with the $$$ power pedals getting similar power readings.

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