Your alternatives are to borrow a laptop cord from a friend or family member if it is compatible. Your other option is to attempt to find a laptop charger in a retail store that is compatible. Unfortunately, most retailers have minimal options for laptop charger power cords and if you do not have a mainstream brand of laptop, finding a power cord at any retailer may prove to be difficult. This leaves you with one of the better options and that is to find one online that will fit the brand and model of laptop that you have. The downside: it could take a few days to get to you.
So while it would have been a good idea to have a back up, it is too late to think about that now. Instead, let's look at ways that may have prolonged the life of your laptop charger power adapter. There are ways to prolong the life of your laptop charger even though, since it was designed for mobility, it probably has been through a lot of wear and tear from being plugged in, unplugged and coiled up and being transported. That is perfectly normal for most laptop power cords.
Take great care when plugging and unplugging the computer charger cord. Just yanking it out can loosen the connections and make it eventually not work. Another tip to keep your laptop charger lasting longer is to keep it out of extreme heating conditions, leaving it in a car on an extremely hot or cold day. This can damage its effectiveness to supply your laptop with power efficiently. Avoid rough surfaces with the laptop adapter cord that could tear or rub off the exterior protective cord which protects the internal wires. If wires become exposed, it is time to throw away the charger as it could become a fire hazard.
Sometimes the actual transformer segment that is in the middle of the charger cord which resembles a brick can get hot. It is recommended it to put it into a spot where it can get air instead of allowing it to overheat. When it is not in use, unplug it for sometime to keep it from getting hot. When transporting it, keep it in a laptop case or bag so that you do not drop it while carrying it and when wrapping the cord around it, make sure it is loose.
Many of these tips can help extend the life of your laptop charger and will keep it lasting longer. It is probably a good idea to find one to keep on back up just in case your current one ever goes bad. They are not overly expensive and are invaluable when it comes to using your laptop.
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