I got an extended battery at Microcenter on clearance for $5 last year. Best Microcenter find ever. My previous one came from ebay. As long as you don't buy on

I got an extended battery at Microcenter on clearance for $5 last year. Best Microcenter find ever. My previous one came from ebay. As long as you don't buy one that's suspiciously cheap you should be good. Spend more than you think it's worth.