@Belagerent I think if they were any good everyone would have one. I'm assuming you have no access to an electricity supply. If you have such access a conventional "intelligent" trickle charger is a better bet.
@Constable_Savage 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.
@Belagerent I think if they were any good everyone would have one. I'm assuming you have no access to an electricity supply. If you have such access a conventional "intelligent" trickle charger is a better bet.