Why can't alkaline batteries and carbon batteries be mixed?

Date:2021-11-08
Summary:

Because alkaline batteries and carbon batteries have di […]

Because alkaline batteries and carbon batteries have different positive electrodes, negative electrodes, and electrolytes, their operating voltages and power storage are different. Generally speaking, the capacity of alkaline batteries is five to six times that of carbon batteries, and the current is larger than that of carbon batteries. In fact, even if it is the same alkaline battery, or the same carbon battery, the old and new ones cannot be mixed.

In the parallel mode of the new and old batteries, the voltage of the new battery is higher, and the voltage of the old battery is lower. When mixed, the new battery will charge the old battery and consume the power of the new battery; in the series mode, the internal resistance of the old battery becomes very high. High, the internal resistance of the new battery is small. When discharging, the new battery consumes power on the internal resistance of the old battery, and may even reverse charge the old battery. The reason why alkaline batteries and carbon batteries cannot be mixed is the same as the reason why old and new batteries cannot be mixed. All because the battery capacity, current and voltage are not used. If it is mixed forcibly, it will only cause excessive battery power consumption, shortened life span and even leakage.

In addition, both alkaline batteries and carbon batteries are disposable batteries and cannot be heated or charged, otherwise they may explode. If the appliance is not used for a long time, the battery should be taken out in time, and the power should be turned off after use, so as to prevent the battery from continuing to discharge and cause unfavorable chemical reactions in the battery to cause leakage.