My personal option is that a permanently attached/ built-in watt meter is mostly useless.
there are a few reasons why I say this;
- they only show real time data when your riding
- they display only the peak/max data once stopped.
so if you want to know how much power you are using/outputting for any given moment you need to be looking at the screen whilst riding, waiting for the info to scroll through, which is very unsafe! ALSO, as most people mount them beneath the board you can’t actually see the real time data which is what I believe is the most important.
I want to know how many amps I’m pulling on the flat vs hills vs coasting along a light decline etc - it doesn’t offer that info when mounted roadside.
When mounted roadside basically you need to get off the board to see any data, it can show peak watts & ah / wh consumed etc. Which is useful info for testing a drive train or new motors/ But really that is not data you need on a daily basis. When you think about it you really only need to know how much battery you have remaining.
permanent watt meters fall into the bling category.
Save the money & space.