Hi, I have an Arduino MKR1000 working with a lithium-ion rechargeable battery pack  (7.4V) in a toy car. I need the 7.4V so I can power the Arduino and the other peripherals attached to it. I would like to place the car on a charging plate to wirelessly recharge.  I plan to get the induction charging coils. Is there any hardware from TinyCircuits that I can use to help me achieve this setup? Will greatly appreciate any guidance. I am open to switching to NiMH batteries if that makes it simpler.

I noticed this charger (link below) but it is for 4.2V, not sufficient for an Arduino. Is there a 7.4V version?
https://tinycircuits.com/products/tiny-battery-charger?_pos=1&_sid=9df44ebf1&_ss=r