If the battery is useful for anything its portability.
Batteries are useful because they are use to make things work and that energy is electricity.
AA rechargeable batteries are batteries that are not disposable. That is, once the power is drained, you can recharge them and use them again and again. I find these quite useful when used in my video game console.
potassium hydroxide - in car batteries calcium hydroxide - in making mortar
It is possible to get an after-market battery for the lenovo thinkpad. You can purchase these after-market batteries at many stores or online. It will be useful while in college.
Absolutely. Used hybrid cars are just as useful as used gasoline cars. There are fears that the batteries are "used up" in used hybrid cars, but the lifetime of the batteries is very long and this should not be a problem.
Generally it is bad to leave batteries in anything battery operated for long periods of time. I have ruined more than one useful thing because I left batteries in until they started to corrode. In the case of paintball guns, leaving batteries in is essentially the same as leaving a low grade weapon around for anyone to use or misuse. You can do damage with an improperly handled paintball gun.
Lincoln Batteries make batteries for all makes and models of cars. Batteries they offer include: modern batteries, classic batteries, motorcycle batteries, leisure batteries and much more.
CR2 batteries are a type of manganese dioxide lithium battery. Some manganese dioxide lithium batteries are for industrial use, but the CR2 is most commonly used in older cameras. They are especially useful in this capacity because of their high current transferal.
Batteries and kettles both convert energy into useful work, albeit in different forms. Batteries store and release electrical energy to power devices, while kettles convert electrical energy into heat to boil water. Both rely on the principles of energy transformation and efficiency in their respective functions. Additionally, they each require an external energy source to operate effectively.
Secondary batteries is the engineering name for batteries that can be recharged.
Frozen batteries last longer unfrozen batteries.
Lipo batteries are lithium polymer batteries. What makes them special from normal batteries is the fact that you can recharge these batteries so they last forever.