Lithium Ion Battery - 6Ah - PRT-13856 - SparkFun Electronics
Amazon.com: HXJNLDC DC 3.7V 800mAh 603040 Rechargeable Lithium Polymer Replacement Battery for DIY 3.7-5V Electronic Product, Mobile Energy Storage Power Supply : Health & Household
Super Performance 5v Lipo Battery At Enticing Deals - Alibaba.com
LiPo Battery Power Source with Switch (5V DC) | Brickstuff