Personally like those li ion small jump packs mower days. But if you have access to power in then occasionally charging the battery can helps.
@Overuser155208 started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Personally like those li ion small jump packs mower days. But if you have access to power in then occasionally charging the battery can helps.