Ideal for working on-the-go, students in classrooms or anyone that needs long-term, portable power, our extended-life, 9-cell HP 4411 compatible batteries provide a reliable power source. Compared to the standard 6-cell HP ProBook 4411 batteries, our 9-cell Li-Ion batteries nearly double the usage time. Depending on the power settings, a ProBook 4411 can be charged for four to five hours without an external power source with these extended-life batteries. Using the most advanced lithium technology, the 4411 compatible batteries feature 10.8v output and have a large 7200 mAh power capacity. Along with the ProBook 4411, the Grade A 9-cell battery is also compatible with many other ProBook models. It is important to reference the model number and battery part’s number of your device before purchasing.
During the testing process, we also activate our batteries, meaning you do not have to cycle the battery before using. Unlike other manufacturers’ suggestions, you do not need to charge and discharge your battery 3 times before using. Our batteries should be charged once for 12 hours and discharged normally to prevent memory effect. Our ProBook 4411 extended-life batteries are manufactured to exceed OEM specifications, yet the batteries are completely OEM compatible, meaning a standard HP AC charger can charge your battery.
Our extended-life batteries are thoroughly tested before shipping, and we offer a 30-day money-back guarantee to ensure our customers that our batteries are functioning at peak performance. We also provide a one-year warranty. Purchasing replacement batteries is inevitable, as computer batteries naturally degrade, but our batteries are not only high-quality, they are also a fraction of the cost as original batteries. Our extended-life batteries are 65 percent less than the standard retail price.