Hey all, I followed the steps the customer service person told me about clearing the SMC and NVRAM and also adjusted a setting in Chrome and it seems to have solved both the battery draining and fan coming on issue. Give it a go:
Clearing SMC: https://support.apple.com/en-gb/HT201295
Clearing NVRAM: https://support.apple.com/en-gb/HT204063
Chrome setting: Noticed that the Activity Monitor shows Chrome Helper running as the main thing taking up loads of CPU resources. You can force quit it in Activity Monitor but it comes back so you can make it not eat up your CPU it by following instructions on google to disable Chrome Helper. (Note: Chrome still works even if you force quit this in your activity monitor)
Hope that helps :)
Topic:
App & System Services
SubTopic:
Core OS
Tags: