I guess you could start carrying a couple of battery phone chargers, stow them in the bags, charge as you ride and discard them enroute when empty!?
If you knew Rob......... the last thing he would do is throw something away!
Post them to yourself once they're dead :)
@adroit started
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I guess you could start carrying a couple of battery phone chargers, stow them in the bags, charge as you ride and discard them enroute when empty!?