You might ask "What is the 3V motherboard battery"? On the majority of PCs the motherboard holds a +3 Volt Lithium Battery which is used for two functions. Firstly it keeps the computer time updated. Secondly, on older PC's it keeps the BIOS settings (Low level start-up instructions) in memory.
When you do something processor intensive, plug in the charger. Not only because this usually triggers a higher performance setting and give you more horse power to play with, but because when the battery is discharged at maximum rate it's more probable to overheat, and heat is a great enemy of Lithium-Ion.
4) Size: terms like slim, ultra slim, main, and extended are commonly used by different vendors and is normally determined by the battery type and capacity. You can offset this by selecting a battery made from li ion stock ion or lithium polymer since they pack more power in the same amount of space.
You have more power to perform work better and faster such as drilling and screwing than the smaller model. Once I used the 18v model I found that I prefer to use it more often because it gives me more power to complete the same task with less effort. At the end of the day it is better and faster, productivity counts.
There are some concerns when it comes to these high powered batteries and how good they are for the environment. But all hybrid batteries are set to be recycled (Toyota has a $200 bounty on each Lithium battery stocks pack), and so unlike some lead batteries from conventional cars, they shouldn't end up in landfills.
If your cordless tools were acquired a long time ago, the battery and charger were of an older technology. The new generation batteries are more efficient and can be charged very quickly. That can be a slight problem with the older charger. The newer chargers have a smart sensing circuit that will cut down Lithium mines Ontario the charge rate as the battery is close to getting full. But for older chargers that do not have such smart circuits, they can overcharge the battery, making it hot when it's left on the charger for extended amount of time. So it's worth the time to investigate if a newer type of charger should be in order when getting a new replacement battery.
Don't empty the battery completely. Modern safety circuits take care of this, but if you take it to 3% capacity, then leave it like that for three months, it's most probably going to be damaged and lose some of its maximum capacity. If you have to store it for a while, charge it to 60%, and leave it like that in a dry and cold place.
Grooming items are iffy but worth checking out. Shampoo is a decent find as are scrubbies/loofahs. Items like Chapstick and Vaseline can often be found there and my very favorite soap (Yardley oatmeal and almond) is almost always available at the dollar store. Nail files, packages of combs, tooth flossing sticks are of value. Skip the cotton swabs (too flimsy and could be dangerous), make-up (due to lack of regulation), and make-up remover pads (can I just say UGH!?).