Made of high quality material, strong, and good conductivity, good and long service life. High current discharge capacity, high energy conversion efficiency, low process loss. Simple charging and discharging circuit, no need rechargeable battery charging circuit, and the safety factor is high, and free maintenance. Good ultra-low temperature characteristics. Specification: Maximum charge voltage: 2.7V (monomer) Maximum charge current (A): unrestricted (this current is related to the discharge current of the super capacitor) Maximum discharge current (A): unrestricted (this current is related to the discharge current of the super capacitor) Minimum discharge voltage: 0.1V Monomer equilibrium starting voltage: 2.65V Balance start voltage error: and 0.25 percent Single balanced start display: red LED lamps light Monomer equilibrium current: less than 1A DC resistance: 8M Operating temperature range: -40 to 85C Storage temperature range: -40 to 85C Material: PCB colour: Black Package Contents: 1 x 2.7V 3000F Super Capacitor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.