Conversation

Notices

1. தோட்டக்காரன்(gardener) (solariiknight@social.systemreboot.net)'s status on Tuesday, 20-Nov-2018 13:31:41 UTC தோட்டக்காரன்(gardener)

   • Cycling
   Today I charged my phone by using power from my bicycle's dynamo
   !cycling
   • தோட்டக்காரன்(gardener) (solariiknight@social.systemreboot.net)'s status on Wednesday, 21-Nov-2018 15:23:16 UTC தோட்டக்காரன்(gardener)

     • அருண் ஐசக் (Arun Isaac)
     Very slow during daily commute, but may be useful for long trips.
     The buck converter I used to charge the phone is not designed for dynamo. I had a feature phone, which charged about 35% in a 38km trip. The feature phone claims to have a battery of 2500mAh. I don't know how good it will be with my smartphone having a battery of 3600mAh.
     
     The buck converter seems to pull down the voltage of the dynamo down during slow rides, resulting in loss of power. (Dynamo is more of a current source, while the buck converter is designed to operate with a voltage source).
     
     I assume that with some improvements, it can supplement power for a phone that is recording a gpx track.