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Batteries are the energy supply of electronic products. The HP ProBook 4540s battery is available in three types: the standard battery, extended life battery, and long life battery.
The HP 4540s battery standard battery is the main battery for the laptop. It is lightweight and easy to carry around. The battery has a voltage of 10.8V and a capacity of 4400mAh. It takes 2 to 2.5 hours to charge the battery from 0 to 100% when the laptop is on. The battery can run for 3 hours when fully charged. However, the run time will depend on the device's power, the laptop's configuration, and the user's computing load. A charger is needed to charge the standard battery. Get a fully charged battery, so one could work without power for a few hours.
Users who often work outside and require a long battery life can choose the HP4540s long-life battery. The extended life battery has a voltage of 10.8V and a capacity of 6600mAh. It takes 3 to 3.5 hours to charge the battery from 0 to 100%. The extended life battery can run for up to 5 hours when fully charged. Nonetheless, the running time will depend on the device's power, the laptop's configuration, and the user's computing load. The battery needs a charger for charging, and users can get a fully charged battery. The battery offers a longer working time, so users don't need to find a power outlet frequently. It is convenient for people who work away from the office.
The long-life battery is a rechargeable lithium-ion battery. It has a voltage of 11.1V and a capacity of 7860mAh. The battery's very high capacity provides extremely long life. The battery allows for up to 8 hours of uninterrupted use when fully charged. The long-life battery can be charged and discharged 500 to 1000 times before it needs to be replaced. It also features a low self-discharge rate, so it can hold a charge when not in use. Buyers will not find the long-life battery losing power like other batteries.
Apart from the function of a laptop battery, which is to act as the source of power when the computer is unplugged, HP ProBook 4540s batteries have features that ensure they function efficiently. These features include the following:
Capacity is the total amount of charge the battery can hold. It is measured in milliampere-hours (mAh) or ampere-hours (Ah). Batteries with large capacities can provide power for a longer time, while those with lower capacities can only run for a shorter period. The HP 4540s battery capacity can be as low as 2800mAh or as high as 5200mAh, depending on the model. In general, laptop batteries have a capacity of between 2000 and 6000mAh. However, an HP ProBook 4540s battery with a capacity of 5200mAh is widely used.
The voltage of a laptop battery refers to the electrical pressure the battery gives. HP 4540s batteries generally have a voltage of 10.8V or 11.1V.
Wattage is the amount of power the battery supplies per hour. It is calculated by multiplying the battery's voltage by its capacity. For example, if the battery has a voltage of 10.8V and a capacity of 5200mAh, the wattage would be 56Wh.
The number of cells in a battery determines its capacity and size. The HP ProBook 4540s battery has six cells, which is typical for a laptop battery. Batteries with more cells usually have a higher capacity and run for a longer time.
A charging cycle refers to the period when a battery is charged from zero to 100%. Laptop batteries have a limited number of charging cycles before they start to degrade. This generally ranges from 300 to 500 cycles. However, batteries that are well cared for can last for more than 1000 cycles. Users can improve the battery life by avoiding full discharges and keeping the battery level between 20 and 80%.
The HP ProBook 4540s battery is a vital mobile power source for various applications that require portable computing devices. Here are a few applications for an HP ProBook 4540s battery;
When considering purchasing an HP Probook 4540s battery, it is essential to get a good battery that will last long and charge quickly. Therefore, when choosing a battery for an HP ProBook 4540, one must ensure that the battery is compatible with the laptop in terms of fit and power requirements. They should also consider the battery's capacity, voltage, and energy ratings to ensure it provides good performance and run time before making a purchase. More so, the kind of battery should be prioritized. The lithium-ion batteries are a better idea. They offer better energy density and have no memory effect. However, lithium-ion batteries are more expensive than Ni-MH batteries and other rechargeable batteries. They are suitable for most HP laptops.
When planning to purchase the battery, the company's reputation and customer service are equally important. A good seller will answer any questions about the product, the warranty, and the return policy. It is also essential to consider the battery's capacity and voltage. Battery capacity and voltage are two critical factors in determining how long a battery will last. A battery with higher voltage and capacity will generally last longer on a single charge. However, it is crucial to ensure that the voltage and capacity are within the acceptable range for the laptop. Otherwise, the battery may not fit or function properly. It is also important to remember that the higher the capacity and voltage, the heavier and more expensive the battery is likely to be. Buyers should weigh the costs and benefits and choose a battery with capacity and voltage that suit their needs and budget.
Q1: How long does an HP ProBook 4540s battery last?
A1: The battery life of the HP ProBook 4540s depends on the battery capacity, usage, and health. The original battery has a battery life of 3 to 5 hours. However, this is only an estimate. The battery life may vary based on the programs and files running on the computer. Some batteries can hold a charge for 2 to 4 hours, while others may last longer.
Q2: How to maximize the battery life of an HP ProBook 4540s battery?
A2: Avoid storing the battery at high temperatures. Also, use the power-saving mode to extend the battery life. In addition, close any programs that are not in use. For example, turn off Bluetooth or Wi-Fi if not in use.
Q3: Is it okay to use an HP ProBook 4540s laptop while charging?
A3: Yes, it is safe to use the laptop while charging. The battery and charger are designed to handle this type of operation.
Q4: How long should the HP ProBook 4540s take to charge fully?
A4: On average, the battery should take about 2 to 3 hours to charge fully. However, this may vary based on the battery capacity. Some batteries may take longer to charge. For example, a 4400mAh battery may take about 4 hours to charge fully.
Q5: How should buyers store HP ProBook 4540s batteries?
A5: If the batteries are not in use, store them at 40% to 60% charge. Also, keep the batteries in a cool and dry place. Avoid storing them at high temperatures. It is important to fully charge the batteries at least once every 6 months to prevent them from draining fully.