

First, the basics
Most laptops use batteries that can last for 3-5 years, or about 1000 charges. (A premium laptop's battery might last longer.) Every time you charge your battery, the total capacity of the battery is diminished. Originally it may have had a run time of 3.5 hours, but after a year it'll run out of juice at 3 hours, even on a full charge.
If your battery capacity has diminished, there are a few things you can do about it. First, you have to correctly gauge how much capacity has been lost. There are free downloads to do this job, like Battery Bar (for Windows PCs) or Coconut Battery (for Macs). These will compare your battery's current maximum capacity to how long it lasted when it was new.
(UPDATE- we originally recommended Battery Eater and while the program works great, their download site has been compromised and we are recommending an alternate program, Battery Bar downloadable from CNET.)
Calibrating your Battery
You can't miraculously reconstitute your battery's capacity. It loses power over time due to chemical reactions taking place in the battery, as it chugs along powering your laptop. You can't undo those changes, but there is one common battery issue you can fix: In many laptops, the operating system's battery meter gets out of sync with how much juice the battery actually has.
Imagine if the gas gauge on your car dashboard was misreading how much gas you actually had in the tank. You'd either run out of gas when you thought you had a quarter of a tank left, or you'd be filling up too frequently. In your laptop, this can mean your laptop shuts down abruptly when the meter says you have 30 minutes left. Or else the meter might warn that you only have 2 minutes of battery life left and shut your laptop down, when it really has another 20 minutes remaining.
Recalibrating gets the battery meter to correctly read the current state of the battery, so you and the operating system know where you stand with existing battery life.
How to recalibrate
First, charge your laptop's battery to full, and leave it that way for at least two hours. Then unplug your laptop, and set its power management settings to never turn off or lower the monitor brightness. (HP has instructions for how do to this on Windows 7 and Vista, as well as Windows XP, while Apple has instructions for Mac laptops on their site.)
You want to drain the battery completely, then let your laptop sit for at least five hours this way -- like, say, overnight. (Just be careful and mute the volume, since some laptops make a warning sound when they're about to run out.) Afterwards, charge it up again, and you should notice a more accurate portrayal of your battery capacity. In some cases, you may even get more life out of it.
Best practices to maintain battery life
You'd think that the best way to keep your laptop's battery from wearing out is to not use it. Right?
As it turns out, batteries are like muscles; they need to be worked out regularly to stay healthy. Ideally, you'd use your laptop unplugged at least once a day, like on a train or bus commute or on the couch in front of the TV. If you're not going to use it, constantly charging your battery is a bad idea; HP recommends on their website that if you're going to leave your laptop plugged in or put up in storage for more than two weeks, you should take the battery out of your laptop.
Past the expiration date
So when is it time to throw out that old battery? The answer, surprisingly, is "never." Laptop batteries contain lots of toxic chemicals, and should never end up in landfills. Fortunately, e-stewards.org has a list of environmentally responsible recyclers that will take your old battery with no fuss.
When is it time to replace your battery, then? Use the free utility apps Becky mentioned, and when they say that your battery can only hold around 25% of its original capacity it's probably time for a new one. You can buy a replacement battery from the original laptop manufacturer, and there are plenty of places online that sell discounted PC laptop batteries, like Laptops for Less and Batteries.com. Owners of newer Mac laptops can get their laptop's non-removable battery swapped out at any Apple store, with a scheduled appointment.
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Nutritionist Mandy Dunlop reveals eight secrets which help the Dutch keep the bulge at bay.
What is it about the Dutch and their great love of fattening food? If they are not nibbling on deep fried meat rolls they are happily scoffing down fat sodden ‘oliebollen'. Yet judging by their slim figures, they effortlessly manage to ward off the bulge. The Dutch after all, are one of the least obese populations in Europe. So what are their slimming secrets? As an expat nutritionist, I went on a mission to find out:
1. Portion Control
The Dutch love greasy foodstuff but have cleverly mastered eating in moderation. You will rarely see supersize portions served in restaurants here and one will often come away from a meal feeling satisfied as opposed to ‘'stuffed''. Indeed, portion control is a fundamental tool to weight management in the Netherlands. Unlike America and the UK, who have progressively adopted a
‘go large' approach to eating, the Dutch are still a good few years behind in these food trends.
2. Milking the benefits
Dutch people like to drink milk, a lot! Luckily, milk is a healthy choice if you are attempting to lose weight. Not only is milk low in calories, but also an excellent source of calcium, vitamin D and protein which have all been linked to weight loss. In fact, recent research has shown that frequent consumption of low fat milk helps reduce body fat in both men and women. Flavoured
milk such as chocolate and coconut are favourites with the Dutch and available fat free (0% vet).
3. Guilt-free snacks
Although the Dutch might have you believe that they eat only deep fried snacks, this is normally only a weekend indulgence. To stay in control of their weight, the Dutch prefer low-fat nibbles; Ontbijtkoek, Dutch ‘'breakfast cake'' is a popular choice. This scrumptious cake can be bought as a sliced snack and with less than 1g of fat per serving, is virtually fat-free. Another popular
bite is the eirkoeken (egg cake). These spongy delights are low in fat and high in protein- ideal for filling you up.
4. Good timing
Unlike other Europeans who traditionally eat their evening meal after 8pm, the Dutch prefer to eat earlier at about 7pm. Although eating late per se is unlikely to result in weight gain, it may however contribute to more rapid fluctuations in blood sugars, ultimately leaving you more susceptible to overeating. So, eating earlier may minimise cravings and help you to make
more sensible food choices.
5. Balanced lunch
Lunch in the Netherlands is usually a quick and light meal at around 12.30pm. A popular choice is cheese and meat layered on fresh bread. This provides a sensible balance of carbohydrates, protein and fat which, in combination, keeps blood sugar levels balanced. Having a portion of good quality protein such as ham or cheese for lunch will also leave you feeling more satisfied and less likely to snack in the afternoon.
6. Coffees not lattes
The Dutch drink a lot of coffee. In fact, after the Scandinavian countries, they are the world's largest consumers. Surprisingly however, there is not a huge selection of coffee choice available here. The Dutch prefer black coffee over commercial lattes and mochas, which is good news for weight-watchers. Black coffee is fat free with only 4 calories per cup whereas lattes can contain up to 300 calories. Perhaps the Dutch were on to something when they named the latte, "koffie verkeerd", meaning "wrong coffee."
7. Cheese please
The Dutch love this stuff. When you consider that Dutch people have been making cheese since 400 AD, it's had little impact on the nation's waistbands. The secret ingredient: calcium. Cheese is a rich source of this essential mineral which has shown in numerous studies to enhance weight loss. Cheese is also a good source of protein which boosts metabolism and can help burn an extra 150-200 calories per day. The key is to eat full fat cheese in moderation and choose low fat varieties whenever possible.
8. Bicycles
The Dutch travel almost everywhere by bike. These two wheeled contraptions are so well
ingrained in Dutch culture that on average, each household owns at least three. Just going
for a gentle 30 minute ride can burn 200 calories and if you're going out for dinner, be sure
to take it along. Research has shown that leisurely cycling after eating turns more of the
consumed calories into heat, resulting in faster weight loss.
Mandy Dunlop is a nutritionist and massage therapist with a nutrition and wellness practice
in Maastricht. She provides one to one nutrition consultations as well as an online nutritional
therapy service. For more information or nutritional advice, you can contact Mandy:
mandy@e-nutritionist.co.uk or visit: www.e-nutritionist.co.uk
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