Quick update on the original Hope2 upgrade. Finally went out last night for a longer ride. Hope battery lasted about 4 hours, cycling between low and medium, and occasionally high. Not bad when even low is brighter than the old high power, which would last 1:45.
Slight negative point – the old system would flash when the battery got a to a certain level, then only stay on low. I don’t think it did that last night, just went a bit dull for maybe 15 minutes, then off completely. Luckily, I had a helment light on too, so wasn’t left stranded at the wrong moment!