Originally Posted by elcruxio

This is the reason I've come to dislike additional gadgetry and why I will fight till the very end before having to get electronic shifting, new gps head unit, the varia radar etc.. I always forget to charge things and then don't have them when I need them.

That's a big reason why my bike lights have way, WAY oversized batteries (99 Wh at 7.2 V). I can forget for a long time and usually I won't run out of juice before I eventually remember to charge them.

Also since my phone is a better navigation device than any GPS head unit would ever hope to be, I don't want to clutter my handlebar with a garmin unit just because of Varia. I gets really full with a bar bag, light remote, phone mount and bell.

Luckily there are fairly good drop bar mounted mirrors these days.