L09C8Y22, L09N8T22 replacement Laptop Battery for Lenovo IdeaPad U460, 14.4V, 4200mAh

First of all, you need to assure the model of your laptop or the part number of your laptop battery. Then look for the battery you need at Secure-Battery. Finally, you can check whether the battery you find is compatible with your laptop or not on the "Compatibility" table (for example, Lenovo ThinkPad P72). If you don't know how to find the right battery for your laptop, you can click "How to find one correct battery for my laptop?" for more details. Moreover, you can click the link "Contact Us" on the bottom of this page to ask us.

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Yes. The capacity of a battery does not affect its compatibility in anyway. A higher capacity battery will simply power your device for longer before you need to charge it.
It is important to check the dimensions and weight in addition to the capacity because sometimes higher capacity batteries can be larger in size, making them impractical for some uses even though they are compatible.

The charm of a notebook computer is you can easily transport it from one location to the next. Whether you are moving the laptop from one room in your house to another or taking it on vacation with you, portability is a laptop's primary asset. However, portability becomes compromised when your notebook's battery no longer charges, because you then have to keep your computer plugged in at all times. There are three primary reasons a notebook battery won't charge, and none of the resolutions are cheap.

1. Bad Battery
   Sometimes the battery refuses to take a charge because the battery itself is bad. Whether it is prematurely defective or several years old, a bad battery will refuse to charge. Replacing a bad battery can be expensive, with aftermarket replacements starting around $100 as of the time of publication. If your computer is still under warranty and it has a bad battery, contact the manufacturer to find out if you can have the battery replaced under the warranty. Otherwise, use the age of the computer as well as the cost of the battery to determine whether it is worth replacing.
2. Bad Motherboard
   As with batteries, notebook motherboards can start malfunctioning with age, though some are also prematurely defective. In these cases, the portion of the motherboard that relays power from the DC jack to the battery no longer works. Unfortunately, this also requires you replace the entire motherboard. Motherboards are normally covered under manufacturers' warranties, so if your warranty is still valid, you may be able to get a free fix. If the notebook is not covered under a warranty, though, the cost of the repair is rarely worthwhile, as motherboard replacements -- once you factor in parts and labor -- often cost more than the notebook itself.
3. Bad AC Adapter
   If your AC adapter is faulty, your battery will not charge properly. Minor internal breaks and fractures in your power cord can cause power to intermittently get to your battery, while a dead AC adapter will force your computer to run on battery power until the battery completely loses charge. The power cord is the easiest notebook part to replace, as many universal adapters are available for purchase. While a replacement AC adapter is still expensive, it is significantly cheaper than having to replace a battery or motherboard.
4. Troubleshooting
   Troubleshooting a battery that does not charge is rarely a do-it-yourself task; without the right tools and knowledge, the only element you can test yourself is the AC adapter. You can do so by removing the battery from the notebook computer, plugging the notebook into the wall and attempting to turn it on; if the laptop turns on, your AC adapter is functional, but if it does not, the AC adapter is faulty. If your AC adapter is functional, the next step is to take your computer to a certified technician to figure out the exact reason -- or sometimes, reasons -- why your battery is not charging.

All laptops are different, however, they usually share similarities when removing the main battery. That being said, all newer MacBooks from Apple use integrated batteries that require service to remove. Most smaller PC laptops, those with a screen size of 13 inches or less, like an Ultrabook, also have a built-in battery that is not accessible. If your laptop's battery is not accessible, help from a repair technician to change the battery is likely necessary.

If you are using a Windows or Linux based laptop, this page provides a general idea on how to remove the laptop battery. If you are replacing a laptop battery, you can insert the new battery after removing the old battery.

1. If your laptop is plugged in, either unplug it or disconnect the power cable.
2. Turn your laptop over so the bottom is facing up.
3. Locate the battery latch on the bottom of the laptop. The image above shows some common battery latches found on laptops.
4. To remove the battery, slide the latch switch to the opposite side and hold it open until the battery is released.
5. On some laptops, the battery pops out on its own. On others, you need to pull the battery out gently with the tips of your fingers.

Although most laptops only have one latch, there are some that require you to slide two latches to remove the battery. On these laptops, the latches still look similar to the examples above, but require you to move both at the same time, usually towards each other.

There are also some older laptops (IBM laptops) that require the latch to be pulled out and then pushed towards the battery.

If you cannot find any latches or buttons for releasing the battery, it is likely the laptop utilizes a different mechanism to release the battery. The laptop may need to be serviced by a licensed repair technician who can remove it through partial or full disassembly of the laptop.

We recommend referring to the laptop documentation or checking the manufacturer's website for steps on how to remove the battery. The documentation or website helps you determine if servicing is required to remove the battery.