Hey Graham, I recently upgraded my original trailwatts battery to the newer version, purchased used from here. I’ve just been out for the first time with it at a bike park, did around 8 miles and used around 35 to 40% of battery which seemed more than normal with the old trailwatts battery, 700w and trailwatts 252w (according to the Garmin ebike app) but the trailwatts battery monitor was showing the same as it was when I started (see pic) also noticed the red bar at the bottom, this was the same as when I started with full charge? (charger has green light) Is there any way of testing if this battery actually works? Would a multi metre prove it? Thanks (my thumb looks a bit dodgy….apologies if your eating reading this 
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