How to charge a Nintendo Switch's Joy-Con controllers in 2 different ways

You can charge a Nintendo Switch Joy-Con controller by attaching it to the console while it's connected to power, or through a charging grip.

How to charge a Nintendo Switch console in 2 ways, and keep playing while it charges

There are two ways to charge a Nintendo Switch console, and both will fully charge the system in about three and a half hours.
IEEE

Joint Estimation of State-of-Health and State-of-Charge for Lithium-Ion Battery Based on Electrochemical Model Optimized by Neural Network

Abstract: Accurate estimation of battery state including state-of-charge (SOC) and state-of-health (SOH) plays an important role in improving the performance and lifespan of battery packs in electric ...