In reply to Cliff Lowther: SatMap 10 - the LiPol battery is OK, lasts for a long day, 10 hrs, BUT the connector is Heath Robinson pathetic.
They initially sold it as waterproof then backtracked and said Weatherproof, its OK in a case in rain but I would be concerned if it got soaked. It feels a bit like a PDA with a plastic case.
Two significant problems:
It has a clear plastic cover clipped over the screen and this makes it very hard to read in sunlight and impossible in direct sunlight.
If you save the route you have just done it creates loads of Waypoints and then displays each of these as solid yellow circles which obliterate the map detail. Daft since they did an up date to allow you to make the route line transparent.
It came out over 4 years ago and the hardware has not been improved and does need:
a. Better waterproof / rugged design so you do not have to put it in their huge rubber case.
b. Readable in sunlight
c. Proper battery connector
d. Weather proof screen that only needs a plastic film cover not a complete thick plastic screen.
But having said all of that it is still I think the best one on the market for now.
It really is due a Mk2 hardware.