UN38.3, RoHS, REACH, IEC62133-2017 3.7V Certified 320mAh LP312539 Lithium Polymer Battery Sourcing the UN38.3 and RoHS certified LP312539 320mAh 3.7V Lithium Polymer Battery? Get 1.184Wh of reliable power in an ultra-slim 3.2mm profile. Perfect for medical and...