Umm not too bad hey, I'm really glad I started chem tutoring earlier in the year, its given me a lot of confidence. Batteries are a bit tricky, but in the end its just about knowing your equations and some general things regarding, cost, practicality, impact on society and environmental impact. But yeah, my main weakness is probably monitoring atm, and maybe some of the harder chemical calculations if they were to arise.
But yeah if you have any questions/need help with anything, I'll try my best to answer them.