All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
(27 products available)
A 4-cell lithium polymer battery consists of four individual cells connected in series. This configuration allows the battery to deliver a nominal voltage of approximately 14.8 volts, as each lithium polymer cell supplies about 3.7 volts.
As a compact and lightweight rechargeable power source, a lithium polymer battery finds wide use in many applications. However, because of lithium polymer's volatile nature, especially at higher temperatures, taking safety precautions with this battery type is necessary, especially with the 4-cell variant that increases in voltage and energy capacity.
This rechargeable battery is slim, light, and flexible, perfect for modern gadgets. Unlike Li-ions, it has a polymer mix that allows diverse shapes and sizes, improving device design. With a solid electrolyte, it lowers the risk of leaks and boosts safety. As it stores energy similarly to Li-ion, it performs well in phones, tablets, and drones. Its lighter mass enhances mobility. With a range of thicknesses and contours, devices get more design freedom.
A 4 cell li polymer battery is a single li-polymer battery pack made up of four cells arranged in a series formation. The cells are connected, increasing the voltage while keeping the capacity in amp hours the same. Such 4 series configured batteries commonly provide around 14.8 volts, which is a typical operating voltage for portable electronics and other medium-range power devices. These batteries offer more energy than a single cell or lower series cell configuration because of the higher voltage and are used in applications such as laptops, drones, and RC vehicles requiring more power and longer run times.
A parallel configuration of a 4 cell lithium polymer battery consists of four individual cells that are connected in parallel to each other. In this setup, the cells are wired so that the positive terminals are connected together and the negative terminals are also connected together, which keeps the voltage constant at the level of a single cell, around 3.7 volts. However, the capacity in amp hours will quadruple since the cells will simultaneously deliver power together. This configuration is commonly used in applications that demand a steady, reliable voltage supply and higher energy capacity for extended usage, such as in mobile phones, tablets, and electric vehicles.
A series-parallel configuration of a 4 cell lithium polymer battery combines both series and parallel arrangements. In this setup, four cells are first connected in series to increase the voltage and then, if needed, additional cells in parallel to increase the capacity or volume of the battery. For instance, four cells arranged in series would give a voltage of about 14.8 volts, and if these cells were also parallel with more sets, the total capacity would increase while keeping the voltage stable. This hybrid configuration is ideal for complex applications, like electric vehicles and large RC models, requiring elevated voltage and increased capacity for longer run times and more powerful output.
Health devices like portable ultrasound machines and blood warmers rely on 4-cell lithium polymer batteries. These batteries ensure the devices work smoothly in any setting. Surgeons need tools, including electric scalpels and sealing devices, to function during long procedures. The batteries keep these tools ready and working. Medical trolleys and stretchers with built-in batteries help quickly move patients and equipment. With the 4-cell battery, these trolleys travel far without running out, making care faster during emergencies. Fans and coolers powered by these batteries help keep patients safe during transport.
Workers use drills and impact wrenches daily, counting on 4-cell lithium polymer batteries. These tools stay powered and help workers finish jobs faster. Worksite lights are important, too, and these batteries keep them bright when power isn't available. Large saws and other tools need the battery's strength to cut and shape materials well. Safety equipment, like gas detectors, works longer with this battery, ensuring places stay safe. Small fans also use these batteries to keep areas cool when they heat up. With this power, everything works for longer, boosting both performance and safety.
High-speed trains need batteries for switches, signals, and other important parts, and 4-cell lithium polymer batteries deliver that on tracks and in tunnels. These batteries help train systems work even during small power breaks. They're used in the station, too, keeping signals and systems running as trains arrive and leave. Control systems in trains rely on these batteries to ensure everything runs smoothly. Repairs get easier with the power these batteries bring to tools. They're even used for track upkeep, like welding machines. Workers off-duty can do inspections, ride, and safety tools powered by the batteries.
Smart devices rely on 4-cell lithium polymer batteries to keep working. Smart speakers, screens, and home assistants stay connected. Tablets and other handhelds work longer, letting people read and game without recharging. Home security, like cameras, sensors, and locks, stay alert with battery power. Smart lighting and plugs work on schedule, too. Wearable health devices track fitness and check wellness regularly. Voice tools enable hands-free setup. Smart remotes and hubs simplify controls. Battery-powered smart tech means fewer wires and easy setups in homes and offices.
This battery has four extra cells linked in series, boosting its voltage to about 14.8 volts. Each cell pumps out 3.7 volts, so the cells creates strong power for more tools and fierce gadgets. This setup gives it more juice than batteries with fewer cells, making it ideal for items that need longer battery life and stable power.
The battery's capacity measures how much energy it stores, listed in amp hours (Ah). A bigger Ah number means it runs longer before needing a charge. For this battery, common Ah ratings are 20000, 25000, and 30000. High-capacity batteries like this can power laptops, drones, and RC cars for a long time without losing charge.
The discharge rate shows how quickly the battery releases power. It's ranked using the C-rate. A higher C-rate means the battery can handle large power bursts without failing. For this battery, the C-rate usually falls between 20C and 50C. That makes it great for tools like electric cars and drones, which need strong, quick power.
This battery is light and easy to move, partly due to the polymer casing. The polymer makes it about a tenth lighter than similar batteries. It weighs around 700 grams. The low weight makes it good for portable devices that need power but are hard to carry.
The battery has many safety features. It stops issues like overheating or excess charging and doesn't easily catch fire. It uses a smart sensor system to watch and guard the battery. If it gets too hot or overworked, the sensors shut it down. This helps prevent damage.
Turn on the speaker and detach the old battery if there is any. Find the first battery slot on the speaker. Slide the first battery into the left slot until it clicks into place. Make sure it fits snugly and is secure. The battery should line up and slide straight in. Check that the left battery is set properly.
Go to the right slot and repeat the steps. Slide the second battery in until it fits tightly. Ensure it matches and sits evenly in the slot. Both batteries should now be safely stored in their spots.
Press the power button to turn on the speaker once the batteries are installed. Wait a moment as the speaker powers up. Ensure it fully starts up before continuing. This allows the speaker to refresh with the new batteries running.
Open the app on the phone once the speaker is on. Ensure Bluetooth is active on the phone. Tap the speaker in the app to choose it. Go to settings to link the speaker to the Wi-Fi. Choose Wi-Fi network and enter the password if needed. Wait for the speaker to connect. Check that the Wi-Fi light stops blinking and stays steady. This shows the speaker is properly joined to the home Wi-Fi. With these steps, both batteries are now added, and the speaker connects online.
Clean the battery surface and connectors each week. Wipe with a dry cloth. Don't use water or liquids. Check for dirt or dampness that can harm the charge.
Look at the battery each month. Check for cracks or bulges. Don't use a damaged battery. Take out a swollen or broken one, as it can hurt the user or the device.
Charge the battery after each use. Don't let it fall below 20%. Store it with a 50% charge. Avoid full drains, as that can harm the cells.
Keep the battery in a cool, dry area. Don't place it near heat or in bright spots. Make sure it stays out of reach of small kids and pets.
Use repair parts from the same brand. Replace worn parts every year. Swap out the battery after three years of use. Talk to a pro about replacing broken parts.
Every smart tech battery contains quality checks. Lithium polymer battery packs for smart tools go through tests to ensure they meet quality standards. Companies check batteries before they use them. They test each one for strength and safety. Sensors track how batteries work during use. These tools watch for heat, charge needs, and levels. Workers fix any issue before it breaks down. Repairs happen faster when problems are caught early. Good batteries boost work speed. When downtime happens, work is paused. Early fixes keep things running smoothly.
Battery safety checks happen in batches. Devices powered by lithium batteries get prompts to check their battery status. Green means the battery is good, yellow means the level is low, and red needs help right away. Low or broken batteries slow work. Batteries that are too hot or cold are swapped out. If battery heat goes above 40 degrees Celsius, the device stops working. Cops in cars rely on these prompts to check their gear. Shuttles wait on fixes to keep working. If the battery overheats, it can cause a fire.
At the job site, smart tools using lithium batteries help workers stay safe. Workers should always check the battery status screen. Stop using gadgets that are too hot or cold. Tools with huge batteries need more care. Big batteries must stay at least 20 feet away from each other. Small batteries do not need space between them. Backs with many batteries should be strapped down. Live wires shouldn't touch the batteries. Battery belts shouldn't sit on the pack. Cops rely on smart devices for their work. If the battery overheats, it can cause a fire.
Old batteries are handled with care. Cops put them in waste bags. Batteries in bad shape get put in a dump pouch. Green tools fold out a mat to collect small parts. Each battery has a tag to track it. Cables and cords must be kept tidy. Make sure no batteries are left in the tool. Batteries that are too hot or cold go in a safe spot until they cool down. Batteries over 100 degrees Fahrenheit should sit for at least 30 minutes before being packed. Batteries below 20 degrees Fahrenheit should sit for 60 minutes. Batteries that get too hot or cold can catch fire.
A1: Connecting four cells in series boosts the battery's voltage to about 14.8 volts. This higher voltage increases energy power, making it fit for electronics like laptops and drones needing more power and longer battery life.
A2: The C-rate shows how fast the battery can safely discharge power. A higher C-rate means it can manage intense power needs without harm. This makes it useful in tough jobs like RC vehicles that require smooth and quick energy use.
A3: Due to their strength, 4-cell batteries are used in health tools, power tools, and transport systems. They power important tools like electric cars, medical gear, and even long trains, where steady power keeps things running without breakdowns.
A4: Yes, larger amp hours are better. A higher amp hour number means the battery can store more charge. This is like a big fuel tank that lets gadgets run longer before needing a recharge. Users want batteries with more amp hours because they deliver more consistent power and are perfect for machines that need long, steady use without a break.
A5: Batteries with larger amp hours are appealing because they allow machines to run for an important duration. These batteries keep gadgets like electric cars or medical tools working steadily, which is key for important jobs in places like hospitals and construction sites where power outages can cause big problems.
