... effect 18650 740mAh 3.7V Lithium Battery Product Description Product Name: Polymer Li-ion Battery Product Model:18650Battery Quality: ... anti-overload 3. Compose Type: Injection Technology to make battery more stable 4. Certifications: CE, UL, UN, ... High energy density 2, High working voltage for single battery cells 3, Pollution-free 4, Long cycle life ... 18mmH: 65mm 18650 740mAh 3.7V Lithium Battery