Patent ID: 8169184

Claim:
A self-adaptable recharger comprising: a power-supply circuit; a current-sampling circuit; a pulse-based recharge circuit comprising parallel recharge branches; and a control circuit connected to the power-supply circuit, the current-sampling circuit and the pulse-based recharge circuit, wherein the control circuit comprises a microprocessor so that each of the parallel recharge branches is under control of a pin of the microprocessor, wherein the microprocessor receives voltage-related and current-related signals from each of the recharge branches and compares the same with basic data stored therein to determine the types of batteries, wherein the microprocessor calculates time-related changes in the voltage-related and current-related signals and a voltage difference between positive and zero pulses to determine the recharge status and correct recharge curves accordingly, wherein the microprocessor determines the highest recharge voltage, a positive slope of voltage, a zero gain of voltage, a negative gain of voltage and a capacity gain to determine an energy level in each of the batteries and stops the recharge when the battery is full.