@ cambria if you want to trade rechargeable batteries learn the way to jump start dead ones, there is ways for both small aaa to 2.2 volt 300 lb batteries. The stuff you need is baking soda, sulfuric acid ( sometimes ) distilled water and Epsom salts. Add knowledge and you have a good business even in today’s world. Oh and a good trickle charger and power source.
You can buy batteries online so cheap at batteryworld otencel battery the black friday sales the 1000mh aaa here 60 cents each. There are rechargeable cr123 and the button batterris 3204 and other such before recent only one use batteries. Just make sure you have right chargers not all will charge in one type of charger and buyinga quick charger pays back in convenient use.