Always check polarity for LiPo packs from China, most are wrong!
Shipping took 3 weeks to get to the US west coast.<br />Battery leads (just like most LiPo packs I've ordered from China) had the polarity swapped. Easy to fix, just carefully pop out one lead with a jeweler's screwdriver, wrap the metal pin with electrical (insulative tape), then remove the other lead, then swap the connector positions.  Took all of 2 minutes while being extra careful to not short out the pack.<br /><br />Used this battery in a GameBoy RetroPi build and it fits with ease in the standard location (with double sided tape).  This pack powers a Kite Circuit Sword CM3 board for a solid 5 to 6 hours playing PSX games.
Rating: 4 stars