Pisen BL-5J are labelled 1400mAh now. They seem a tiny bit fatter than Polarcells. I got relative discharge of 1710mAh using bq27* script and a full discharge so over 1500mAh in real terms. I like Pisen cells and that's why I tried them out again. It was big news for me to see the additional capacity and as a bonus they are cheap too.