I made a small project for this because of the charging issues I have. I bought a Qi USB receiver with a 18650 charge module and connected it directly to the battery and made it so that I can charge it using a Qi wireless charger. It does take a bit longer to charge but there is 2 good reason I did it this way. 1 is that the charge port still works the same as usual and 2 is that when it is on top of the wireless charger, It will still charge it while the blender is running.