The charging method for 6 strings of supercapacitors is constant current charging. Six 6 series supercapacitors are connected in series with an inverter to charge the mobile phone, and solar energy is added to supplement part of the current consumption of the supercapacitors, using a constant current charging method. The most traditional charging methods currently in use include constant current charging and constant voltage charging.
The length of discharge time is determined by your charging equipment. If the charging current demand is large, the discharge time will be shorter, otherwise it will be longer. Of course, there will also be certain factors. in the loss of self-discharge of the capacitor. The discharge time can be calculated according to this formula. For example, the full voltage of the capacitor is U1, and the minimum holding voltage of the circuit is U2 and the supply voltagentation of the circuit is assumed to be U3, and the supply voltage of the circuit is assumed to be U3, and the minimum holding voltage of the circuit is U2. the holding current is I. According to energy conservation, the discharge time is approximately T = (1/2*C*U1? - 1/2*C*U2?)/U3*I.