Hybrid Super Capacitor Battery cells 18650

4pc Hybrid Super Capacitor Battery cells 18650 4.2V 3000F 1500mah 18650 equivelant Super Capacitor battery Fast charge cycle life @ 25 ± 2 °C) ≥ 15,000 times Slow charge cycle life ≥ 30,000 times Advantages of Li-ion super capacitor battery cells 1) No less than 20,000 cycle life. 2) Great safety and reliability: 3) Energy density is 75-220wh/kg. Lots of power in small unit. 4) Quick charge: 80% charge in 5-15 minutes. 5) -40℃ to 70℃ range of operating temperature. Suitable for harsh condition. Also available 4pc 4.2v 5300F (2500mah) Super capacitor battery equivelant to 21700 Lithium battery cells. 4pc €50