In one sentence, describe what the following article is about: For instance, you may have a two star with the local authorities and have a three star in a particular camping guide. Star ratings usually take into account the number of toilets and showers available to a given number of guests; for instance, one toilet to twenty people might deliver a two star and one toilet to forty people might deliver a one star. Be aware then that expansion of the campsite without similar expansion of facilities may lower your star rating. Unfortunately many camping authorities give star ratings for facilities that campers are not interested in, so don't be surprised to find a campsite littered with table tennis tables that no-one is using - the owner is probably just "chasing stars".
Summary: Be conscious that star ratings vary from country to country, region to region and indeed from camping organisation to organisation. Be realistic.

Solving puzzles requires you to combine what you already know with new information from the puzzle. Just like riddles, puzzles ask you to use existing knowledge and context clues to come up with an original, often tricky answer. Puzzles can help you learn to recognize patterns and order. Puzzle games such as Tetris, as well as traditional jigsaw puzzles, require you to look at a situation in multiple ways to figure out the best solution. This process transfers well into solving riddles, too. Specific types of puzzles and games are best at developing specific types of skills. Thus, if you do a lot of crossword puzzles, you'll probably get very good at crossword puzzles, but you may not see equivalent gains in other areas. It's helpful to play a variety of games instead of focusing on only one type. The more you repeat a certain type of task, the less effort your brain needs to expend to perform it. Regularly alternating the types of games you play will help keep your brain from taking shortcuts. For example, you could read a complex news story and then write a short summary that boils down all the ideas into a few key ideas. Research suggests that this will help you look at the "big picture" as well as the details, a skill that also comes in handy when solving riddles. Rephrasing ideas into your own words may also help you develop linguistic flexibility and improve memory. It's easier to remember ideas when you've taken the time to paraphrase them, because your brain has had to work to structure the ideas so that it understands them.
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One-sentence summary -- Solve puzzles daily. Alternate your brain games regularly. Try reading and then summarizing something complex.

Q: Storing a lead-acid battery at a very low charge state can cause permanent crystal formation (sulfation) that reduces capacity. Lithium-ion batteries at low charge can develop copper structures that short the battery, making it dangerous to use. The exact recharge instructions depend on the battery design. Follow these guidelines if you do not have access to manufacturer instructions: Lead AcidRecharge to full whenever voltage drops below 2.07 volts / cell (12.42V for a 12V battery).One charge every six months is typical. Lithium Ion (Li-ion)Recharge to 3050% capacity whenever voltage drops below 2.5 V/cell. Do not recharge if voltage drops to 1.5V/cell.One charge every few months is typical. If your rechargeable batteries drop to low charge levels for more than a few days, they will likely require special treatment before you can use them again: Lead AcidThe battery will usually recharge, but with permanently reduced capacity. If a small lead acid battery fails to recharge, apply a very low amount of current at a high voltage (~5V) for two hours.Anti-sulfation devices are not recommended without an experienced operator. Lithium Ion (Li-ion)The battery may enter "sleep mode" and fail to recharge. Use a charger with a "boost" feature, taking care to apply the voltage with the correct polarity.Never boost a battery that falls below 1.5V/cell for a week or more, as it is permanently damaged and dangerous to use. Nickel-based (NiMH, NiZn, NiCd)No major issues. Some types may require charging and fully discharging a couple times to return to full capacity.For large scale use, consider a battery analyzer that can "recondition" the battery.
A: Recharge lead acid and lithium-ion batteries periodically. Restore discharged batteries.

Problem: Article: You'll want to remove all glue, dirt and existing mortar before you start laying your new tile floor. The floor should be completely clean in order for maximum bonding between the tile and the thinset. TSP, or trisodium phosphate, is a great all-purpose cleaner if you need to use it. It cleans extremely effectively, but is no longer as widely used today as it was before because of environmental concerns. Most people decide to lay tile from the center of the room outward, which is important if you're dealing with even-sized tiles. This method will create a nice effect in the center of the room, but tiles in the edges of the room will need to be cut. You may decide to start tiling from another spot in the room, especially if you're using irregular-sized tiles. You may choose to have uncut tiles on the sides of the room and work from there if cabinets, sofas, or other furniture is covering tiles on one side of the room. This article will assume that you want to start from the center of the room and work outward. Make sure you do a dry layout with your tile and spacers directly on the cement board before you lay down the mortar. A dry layout will allow you to visualize the room as it might be when everything is finished. Experiment with different layouts until the right one catches your eye. Set up your chalk string in the center of each wall by measuring the wall and putting the string exactly in the middle. Leave the string in place after you snap it to use as a guide for your first few tiles. Lay down some floor tiles along one of the center lines to make sure you marked the center of the room properly. If you realize that your chalk lines aren't square, redo them now. When you're laying the tile, alternate which box you're pulling from to account for any variation in color among the boxes. If you're making a design or pattern with the tile, put the tiles in order so you know which ones you need at any specific time. If you end with a very small or very large space in comparison with the size of the tile you're using, move everything down so the extra space is about the width of a half a piece of tile and snap new chalk lines to use when placing the tiles. You don't want to have to cut your tile into small pieces to finish a row along the wall.
Summary:
If you need to, clean the existing floor thoroughly with a non-toxic floor cleaner. Decide where you want to start your tile. Find the center of the room by snapping a chalk line in the center of the room widthwise and lengthwise. Line up your boxes of tile and open each one.