Alkaline batteries have far different characteristics than your dry cell batteries, where a chemical reaction takes place discharging a current until not enough current can be produced as the chemicals become equalized in the unit. Compared to the older style and lower cost technology dry cells, these different characteristics make recharging alkaline batteries more difficult, but not impossible. The problem is that alkaline cells differ so much from dry cells in structure that they cannot be recharged in series in a normal battery recharger. But, here’s the secret battery manufacturers will not tell you how to recharge and reuse alkaline batteries several times. Place one alkaline in a normal household battery charger, then place a dry cell battery next to the alkaline, then put in another dry cell, then one more alkaline, so that one dry cell will act as a capacitor for an alkaline battery, taking part of the load off the alkaline battery that is under electrical load during the recharging process. Normally, alkaline cells will quickly get hot and overheat, but not with using dry cells as capacitors to take enough load off to allow recharging to take place. Some stores only sell alkaline batteries these days, but fortunately some stores such as Dollar Tree stock both dry cell as well as alkaline batteries, and for only one dollar for as many as eight batteries! So, get in the habit of buying a mix of dry cells and alkaline batteries, putting a 50-50 mix in the recharger each time you want to recharge the batteries and get 8 or more uses out of each battery before it becomes weak and depleted for use.
You can do the environment a favor by reusing your batteries a few times besides saving money as well. Isn’t science great!