Nickel-cadmium batteries cannot be charged with lithium battery chargers. Because the battery terminal voltage of lithium battery and nichrome battery is different. The terminal voltage of the lithium battery is 3.6V, and the terminal voltage of the Neigo battery is 1.2V, and the difference in the terminal voltage of the two batteries is very large, and it can not be charged with a charger. The output voltage of the charger that charges the lithium battery is basically about 5V, and the output voltage of the charger that charges the battery is basically about 1.7V.