Answer to: What is the best option for buying a new battery?Hi, Dom! It's a really safe bet to buy directly from the manufacturer. You'll be safer when it comes to getting a warranty. Amazon.com sells these batteries, but they're sold third-party, so you may not get a full warranty. Here is Dell's Inspiron Mini 1210 tag search page: http://accessories.us.dell.com/sna/PfydF...
Answer to: What is the battery life expected?Hi, Dom! The Dell Inspiron Mini 1210 has a three-cell battery. There is a really good review of the battery life at this URL: https://www.cnet.com/au/products/dell-inspiron-mini-1210/review/2/ The review says the battery will last about 2 hours if you watch videos non-stop. If you need to replace the battery for any reason, you should check out the battery replacement guide on this device page! Dell Inspiron Mini 1210 Battery Replacement
Answer to: My screen is blank!Hi, Dom! This seems to be an issue for a lot of users. I did some looking, and I think this will help you! I found this website: http://laptopturn.com/dell-inspiron-mini-12-1210-wont-turn-on-wont-boot-no-display-or-black-screen-problems/ It says your problem could be RAM failure or Processor failure, and in this laptop, those two parts are together. It could also be a faulty screen, bad wiring, graphics card failure, motherboard failure, BIOS failure. I would check the RAM/Processor assembly first. It's actually an easy and fun process to replace it. Check it out on this device page at: Dell Inspiron Mini 1210 Processor/RAM Assembly Replacement