Power consumption during charging battery
A week ago I got a current logger that I used to monitor and record the power consumption during battery charging. The battery has a 20% of charge (as I explain previously, when you use two batteries, at 20% the CPX swaps from one battery to the other).
Her you have the consumption evolution that I recorded in the wall shocket.
The mains in Spain is about 230 V. The maximun measured current during charging was 4.9 Amps! In chrger specs it says 5 A max. So very precise. As you can see on the plot, the recharging from 20% to 100% takes less than 3 hours. That is really quick.
Battery nominal specs are 60 V 45 Ah... so about 2.700 kWh. For charging the 80% of the battery took about 2.300 kWh from mains!
Just for your information 😉
Here I have similar measurement, but with data directly taken from CANBUS communication between battery and charger:
Really nice job!!! It also looks that during the charging period the temperature do no increase a lot. How do you read that info from the battery canbus? Where can I found information about this communication? I like electronics but I have no experience with canbus (further than changing a couple of parameters un my car).
Thanks for sharing it 😉 👍
In my case I read the current and voltage from the mains and you between the batery and charger. The efficiency of the charger looks very high!
I see that on your link it is possible to see that you used a couple of charger, a 5 V 70.5 v one and the original on. Do you think it will be a problem using a 5A one?
I am planning to instal a permanent charger in the CPX and use a waterproof 220 V iec C13 plug on the bike for charging it easily in public places or garajes (time is not an issue). I found the place for the charger (under you feet, if you release the 4 bolts, there is a quite big space, jejeje). With the charger instaled it will be easy to connect the charger (using a switch) with the charging plug internally.
What 5 Amps charger you used and how you connected it?