Hi, will try to be really brief here.
So the thing is since I started with 6s lipo chargers which had a nice display for showing all the relevant info, it was a real bummer not having any other info, besides volts, when charging with regular CC / CV charger.
The wattmeter / energy meter unit costs just 10 dollars and is relatively easy to install.
- Time passed
- Watthours (how many ‘kilometers/miles’ have u already pumped back into battery)
- Capacity (Ah)
- Charge Power
- Amps / Volts
(I hope, pc users can see my links)
As about wiring, since I didnt have sufficient space in my charger, I decided to wire in between my battery charge port and the charger plug.
See pictures for better description.
Of course, u can do the same to any other connector u are having or install meter permanently on the board.
With this meter I can confidently know that for 5km range I need to charge about 40minutes
As in 8minutes about 21wh is charged into battery. (21wh being average consumtion per km)