Find the right battery or AC Adapter

Find the right battery for your HP laptop

Maximize your notebook’s mobility and extend its power on the go with a range of battery solutions that help you get more done. Work smarter and be productive longer with HP Batteries that are designed and tested to ensure optimum power support. HP Batteries include the primary batteries sold with every HP Business Notebook and Mini and a range of secondary batteries to help extend your runtime. Whether you need a spare primary battery or an extra- capacity battery to run your notebook longer while you’re on the go, HP has you covered.

Batteries are designed to work with certain models of laptops. Make sure you are buying a compatible battery by checking the list on this page. If your model is not listed then you can search for the model or contact us to find it. Some laptops have different sizes of batteries available. In general the more cells the battery has the longer it will last but the heavier it is to carry. Newer models of laptops have their batteries available using option parts numbers that look like WD548AA. Older models of laptops have batteries that are also available using spare part numbers that look like 593555-001. They are the same battery but the prices may be different and the warranty length might be different. Before replacing an old battery that no longer holds a charge you might want to check if there has been a HP recall on the battery. If there was a recall then HP will replace the battery for you which you can request on this page.

A lithium-ion (Li-Ion) battery pack is made of multiple cells connected in series and in parallel based on the voltage and current requirements of the device.Battery cycle life is the total number of discharge-charge cycles a battery yields before it can no longer hold a useful amount of charge. Estimating the cycle life of a rechargeable Li-Ion battery is difficult because cycle life is affected by the average operating temperature of the battery and its energy discharge rate. Battery capacity is expressed in ampere-hours (Ah). Battery energy, expressed in watt-hours (Wh), is the product of the battery capacity (Ah) and the battery voltage (V). The operating voltage range of a Li-Ion battery pack remains relatively constant throughout its useful life; however, its capacity begins to decrease in a roughly linear manner as soon as it is put into service. Under normal discharge loads, Li-Ion batteries have a life span of between 300 and 500 cycles.

Estimating battery run time is complicated by the inaccuracy of the system that monitors and reports the battery charge status. Some notebooks estimate the battery charge state based on manufacturer testing of the specific product model with a particular configuration. To aid in monitoring and managing Li-Ion batteries, HP Compaq notebooks provide accurate and instantaneous status information using Smart Battery Technology. The Smart Battery Technology maintains and reports its own status, thus providing you with accurate information. Repeated short discharges and recharges cause increasing inaccuracy between the state-of-charge of the battery and the Power Meter readings. Periodically, the battery needs to be calibrated to "relearn" its usable capacity so it can synchronize its charge status with the Power Meter. The calibration procedure maximizes the notebook run time by providing an accurate estimate of the remaining battery charge. Smart Batteries calibrate their capacity each time they undergo a full discharge-charge cycle. You simply have to periodically discharge the battery until the 5% capacity alarm is received. The need to perform this procedure will vary with individual use. In general, a Li-Ion battery should be calibrated a minimum of once every 3 months.

There are different factors that reduce battery capacity. In order to extend the life of the battery you should:

• Store Li-Ion batteries between 20°C and 25°C (68°F and 77°F) with 30% to 50% charge.

• Do not leave batteries exposed to high temperatures for extended periods eg leave inside a hot car.

• Remove the battery if the notebook will be stored (turned off and not plugged into AC power) for more than 2 weeks.

• Remove the battery from the notebook if the notebook will be plugged into AC power continuously (via a wall adapter or docking station) for more than 2 weeks.

You can manually change the power consumption of your notebook PC and conserve battery power.

• Reduce the brightness of the screen to the minimum readable level.

• Remove peripherals when not in use. External hard drives, CD-ROMs, Zip drives, PC cards, and other peripheral devices can draw power from your battery even when they are not in active use.

• Reduce the speed of your processor. The faster your computer works, the more quickly it uses up the supply of power.

• Turn off the Wireless On-Off button when it is not in use.

• Check for programs running in the background. You can decrease the power requirements by periodically searching for and removing unnecessary programs.

Finding the right AC adapter for your HP laptop

 HP includes a high quality AC adapter with each HP Business Notebook, HP Ultrabook, HP Mini and HP Docking Station. Designed and tested to ensure optimum power support, the adapter also charges the notebook's internal battery simultaneously when connected. As a notebook user, you may also need your adapter to be as flexible as your notebook. HP offers a variety of adapters for the many circumstance in which you may use your notebook. Whether you want something compact to carry, have a unique travel situation, or would just like another AC adapter for the office or home, HP offers an adapter for almost every computing situation.

The HP Smart AC Adapter is the adapter included with all HP Business Notebooks and HP Docking Stations. The Smart AC Adapter is intelligent by design because it detects and regulates the electrical current that is needed for your notebook or docking station. This unique feature helps protect your product from erratic electrical currents or a power surge. Also, although you may need a higher capacity adapter for a docking station or another notebook in the office, the Smart AC Adapter can be used with any notebook - it will adjust to the power to whatever your notebook needs. The main difference between newer HP Smart and older Non Smart AC adapters is that the Smart adapter has the pin and the Non Smart adapters work with the motherboards that have the pin. We can speculate that HP changed to this design because it is much cheaper to replace the AC Adapter with a broken pin than to replace the motherboard with a broken pin.

HP Slim AC Adapters are 40% thinner than the standard notebook adapter. The HP Mini 40W AC Adapter is the AC power adapter designed for use with select models of the HP Mini series of products. The HP Smart Travel AC Adapter is 40% thinner than the standard 65W adapter. HP Combo Adapters HP 90W Combo Adapters are designed for mobile workers who need an adapter while traveling in the car or by air. HP 90W Slim Combo Adapter with USB can power up your notebook at home/office, in your car, or on the aircraft of any airline. The HP 90W Smart Auto Adapter is designed to power your HP notebook in your car and charge the internal battery simultaneously.

Different laptops are compatible with different models of AC Adapter so please use the following list to check for your model. If you don't see your laptop listed you can do a search or contact us. In general the laptop requires a minimum power eg 65W so you can buy a 65W or larger AC adapter. The larger AC adapter may charge the battery faster and support more peripherals but will be heavier to carry. In general a larger AC Adapter is required when using a docking station. The newer models of AC Adapters can be purchased using an option part number that looks like H6Y82UT and these include the power cord. The older AC adapters are only available by ordering with the spare part number that looks like 693712-001. These do not include the power cord and must be purchased separately.

HP has a product recall for the original charger for the Chromebook 11 which you can get a replacement for here. HP has a product recall for some power cords with the LS-15 mark which you can get replaced here.

If you cannot see your laptop model then try a search or contact us.