Hello everyone, I have the mid-2010 MBP running Yosmite (I got to upgrade the OS X) and it has started acting up. I've notice when I have multiple programs and tabs on chrome running, my computer starts to run understandably slow. Will upgrading the RAM make my computer run faster/smoother? Should I got 8gb or 16gb? Any specific brand recommendations? Also, my battery is shot, has anyone purchased 3rd party battery's before? Any specific brand recommendations? I am concerned while using my MBP with multiple programs running and charging my laptop, the 3rd party battery will overheat and explode, do 3rd party battery's explode easily? EDIT: I found this batteries on ebay, http://www.ebay.ca/itm/Battery-for-...061858?hash=item1a09b5d7a2:g:sowAAOSwv-NWWH05, do you think they will be okay? Lastly, when I move my MBP, sometimes, the whole computer will shut down, or when I lift the screen and wake the laptop from sleep mode, it won't turn on and I have to force shut it down. I'm assuming theres some sort of connectivity issue occurring. I plan on opening the laptop and making sure all wires are connected properly. What screwdriver's do I need to open my MBP? Do I require one of those full sets, or just a select few? I appreciate any advice/feedback, thank you.