Q. Is the pencil battery rechargeable?

There are two basic categories of AA batteries: rechargeable and non-rechargeable batteries. Both of these categories have their advantages and disadvantages. Rechargeable batteries may be used again and again for a very long period by just plugging them into a charger when they run out of power. On the other hand the ones that aren't rechargeable can only be used once and after their battery is depleted you have to throw them away and get new ones. Therefore purchasing rechargeable AA batteries will save you money in the long term and they will also help you cut down on the amount of electronic trash you produce.