Why I Trust the 10440 Lithium Ion Battery: My Expert Experience and Insights
When I first stumbled upon the 10440 lithium-ion battery, I was struck by its unassuming size and the immense power it packs within. Often overshadowed by its larger counterparts, this tiny battery plays a crucial role in the world of portable electronics, powering everything from flashlights to miniature devices that enhance our daily lives. As I delved deeper into its specifications, applications, and advantages, I realized just how significant this little powerhouse is in an era that increasingly values efficiency and compact design. Join me as I explore the fascinating world of the 10440 lithium-ion battery, uncovering its potential and the impact it has on technology and innovation.
I Personally Explored The Benefits Of The 10440 Lithium Ion Battery And Share My Insights Below

JESSPOW 10440 Rechargeable Battery, 10440 Li-ion Rechargeable Batteries 3.7V 350mAh for LED Flashlight Torch, 4 Pack

perprokay 350mAh 3.7V ICR 10440 Li-ion Rechargeable Batteries 4 Pack, 3.7V Lithium-ion Battery 10440 Rechargeable Battery for Flashlights, Doorbells, Headlamps…4 Count

Lankoo USB 10440 Lithium ion Rechargeable Battery, High Capacity 3.7V 750mWh Rechargeable 10440 Battery, Fast Charge, 1200 Cycle with Type C Port Cable, Constant Output,4-Pack

elxjar (10-Pack) ICR 10440 Batteries 3.7V Rechargeable Batteries Lithium Ion 10440 Rechargeable Battery 320mAh 10440 Li-ion Battery for Flashlights Wireless Mouse Emergency Lights
1. JESSPOW 10440 Rechargeable Battery, 10440 Li-ion Rechargeable Batteries 3.7V 350mAh for LED Flashlight Torch, 4 Pack

When I first came across the JESSPOW 10440 Rechargeable Battery, I was intrigued by its specifications and potential applications. It’s a 3.7V, 350mAh rechargeable battery designed specifically for devices that require higher voltage, such as LED flashlights, GPS units, and power banks. This isn’t just your average AAA battery; it’s a specialized power source that can significantly enhance the performance of compatible devices. If you frequently use high-drain electronics, this product could be a game changer for you.
One of the standout features of the JESSPOW 10440 batteries is their ability to be recharged up to 1200 times. This longevity not only saves money in the long run but also reduces waste, making it a more environmentally friendly choice compared to single-use batteries. The fact that these batteries have no memory effect means you can recharge them at any time without worrying about losing capacity. This feature is especially useful for individuals like me who might not always use a device consistently but still want reliable performance when they do.
Moreover, the dimensions of these batteries are crucial; they measure 10mm x 44mm, which is distinct from standard AAA batteries. This specificity means that I need to ensure that any device I use them in is designed to accommodate 10440 batteries. However, for those of us who own compatible devices, this battery size delivers a significant performance boost. It’s essential to pay attention to these details, as using the wrong battery can lead to device malfunction or damage.
Another aspect that I find reassuring is the customer service offered by JESSPOW. They provide a full refund or free replacement if you are unsatisfied with the product. This commitment to customer satisfaction takes away much of the risk associated with online purchases, allowing me to buy with confidence. Knowing that I have support if something doesn’t meet my expectations makes the purchasing decision much easier.
In summary, the JESSPOW 10440 Rechargeable Battery is an excellent choice for anyone looking to power high-drain devices. Its long lifespan, environmental benefits, and strong customer service make it a compelling option. If you’re in the market for reliable, rechargeable power solutions, I highly recommend considering this product. Click the yellow [Add to Cart] button and experience the difference for yourself!
Feature Description Type 10440 Li-ion Rechargeable Battery Voltage 3.7V Capacity 350mAh Rechargeability Up to 1200 times No Memory Effect Yes Size 10mm x 44mm Compatibility Devices that accept 10440 batteries Customer Service Full refund or free replacement available
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2. perprokay 350mAh 3.7V ICR 10440 Li-ion Rechargeable Batteries 4 Pack, 3.7V Lithium-ion Battery 10440 Rechargeable Battery for Flashlights, Doorbells, Headlamps…4 Count

When I first came across the perprokay 350mAh 3.7V ICR 10440 Li-ion Rechargeable Batteries, I was immediately intrigued by their potential to enhance my daily life. These batteries are not just any ordinary power source; they are a reliable solution for anyone who relies on battery-operated devices. The 350mAh capacity may seem modest at first, but it is perfectly suited for a wide range of applications, from flashlights to doorbells and headlamps. This versatility makes them an ideal choice for both everyday users and enthusiasts alike.
One of the standout features of the perprokay 10440 batteries is their rechargeability. With the ability to be charged up to 1200 times, I find this to be a significant cost-saving advantage. Imagine the number of disposable batteries I’ve used in the past, not to mention the clutter they create. By switching to these rechargeable batteries, I can save money in the long run while reducing waste. It feels great to know that I am making a more sustainable choice that aligns with my values.
The wide compatibility of these batteries is another reason why they are a must-have for anyone who uses battery-operated devices. Whether I need to power my wireless keyboard, digital camera, or even emergency lights, these batteries fit the bill. This level of versatility means I can stock up on just one type of battery, simplifying my battery storage and reducing the hassle of finding the right power source for different devices.
Another feature that caught my attention is the stable voltage output. Operating efficiently in temperatures ranging from -4°F to 140°F, I can trust that these batteries will perform in varying conditions, whether I’m using them during a winter camping trip or in the summer heat. This reliability is crucial for devices like flashlights and emergency lights, where I need to know that they will function when I need them the most.
Moreover, the environmental aspect of the perprokay 10440 batteries is something I deeply appreciate. Unlike disposable alkaline batteries that can contribute to pollution, these lithium batteries are designed with sustainability in mind. They do not contain harmful heavy metals such as cadmium, lead, or mercury, making them a safer choice for both my household and the planet. The recyclable materials used in their construction further minimize their environmental impact, allowing me to feel good about my purchase.
I believe that the perprokay 350mAh 3.7V ICR 10440 Li-ion Rechargeable Batteries are an excellent investment for anyone looking to improve their battery experience. With their rechargeability, wide compatibility, stable performance, and environmentally friendly design, these batteries provide great value and convenience. If you’re like me and want to simplify your life while making a positive impact, I highly recommend considering these batteries for your devices. It’s a small switch that can lead to significant benefits.
Feature Details Type ICR 10440 Rechargeable Lithium Battery Nominal Voltage 3.7V Nominal Capacity 350mAh Size 1043.5mm Recharge Cycles Up to 1200 times Temperature Range -4°F to 140°F Environmental Impact Free of cadmium, lead, and mercury; recyclable materials
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3. Lankoo USB 10440 Lithium ion Rechargeable Battery, High Capacity 3.7V 750mWh Rechargeable 10440 Battery, Fast Charge, 1200 Cycle with Type C Port Cable, Constant Output,4-Pack

When I first came across the Lankoo USB 10440 Lithium-ion Rechargeable Battery, I was impressed by the thoughtfulness packed into this product. As someone who relies heavily on various electronic devices, I understand the struggle of constantly needing new batteries. This product offers a refreshing solution the chance to switch to rechargeable batteries and eliminate the waste and expense associated with traditional alkaline 10440 batteries. By choosing these lithium batteries, I’m not only opting for great performance but also embracing a more eco-friendly and cost-effective lifestyle.
The convenience of the Type C USB charging feature is a game-changer. I can directly plug a Type C USB cable into the battery, making charging quick and hassle-free. This means that I can connect the batteries to any USB power supply, whether it’s an AC adapter, power bank, or even my computer. In just around four hours, I can fully charge the batteries, and the ability to charge two batteries simultaneously is a significant time-saver. With a lifespan of over 1200 uses, I find it hard to justify sticking with disposable batteries when I can enjoy such efficiency and longevity.
One of the standout features for me is the LED indicator. When charging, the red LED blinks, and it remains on when fully charged. This simple yet effective design allows me to monitor the charging status of each battery at a glance. There’s no guesswork involved, and I appreciate how Lankoo has prioritized user-friendliness in this aspect. It’s these little details that make a product truly stand out.
With a substantial capacity of 750mWh, these batteries can power a wide array of devices. From digital cameras and flashlights to remote controls and electric shavers, the versatility of the Lankoo batteries means I can rely on them for both everyday items and emergency situations. I can confidently use them in solar lights, walkie-talkies, and even portable printers without worrying about running out of power at a critical moment. The all-encompassing nature of these batteries truly caters to anyone who relies on rechargeable power.
Safety is a paramount concern for me, and I’m pleased to see that these batteries comply with North American safety standards. The CE, FCC, and RoHS certifications provide peace of mind, knowing that both my devices and I are protected while using this product. It’s reassuring to invest in a battery that not only delivers in terms of performance but also prioritizes safety.
the Lankoo USB 10440 Lithium-ion Rechargeable Battery is an impressive product that checks all the boxes for functionality, convenience, and safety. If you’re tired of the constant cycle of purchasing and disposing of alkaline batteries, I highly recommend making the switch. With the added benefits of fast charging, long lifecycle, and versatile applications, these batteries are an investment that will pay off in the long run. Don’t hesitate to enhance your charging experience and reduce your environmental footprint with this remarkable product!
Feature Description Rechargeable Switch from alkaline to lithium for cost savings and eco-friendliness. Type C USB Charging Quick and easy charging with simultaneous connection for two batteries. LED Indicators Visual charging status with red blinking and solid light when fully charged. Large Capacity 750mWh capacity suitable for a wide range of devices. Certified Safety Compliant with North American safety standards (CE, FCC, RoHS).
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4. elxjar (10-Pack) ICR 10440 Batteries 3.7V Rechargeable Batteries Lithium Ion 10440 Rechargeable Battery 320mAh 10440 Li-ion Battery for Flashlights Wireless Mouse Emergency Lights

When I first came across the elxjar (10-Pack) ICR 10440 Batteries, I was immediately intrigued by the promise of reliable power in a compact form. As someone who often relies on various electronic devices, from flashlights to wireless mice, having a dependable source of energy is crucial. The elxjar rechargeable batteries seem to hit the mark perfectly, and I’d like to share my insights on why these batteries could be an excellent addition to your tech arsenal.
The specifications of these batteries are impressive. With a diameter of 10.30mm and a height of 43.90mm, they are designed to fit seamlessly into devices that require the ICR 10440 size. Weighing in at just 0.32 oz (9g), they are lightweight yet powerful, making them perfect for portable applications. The 3.7V and 320mAh capacity is also commendable, ensuring that you get a decent amount of power for your devices without frequent recharging. This combination of size and efficiency makes them highly versatile for various uses, including in flashlights, which is particularly useful during outdoor adventures or emergency situations.
What I find particularly appealing about this product is the value offered in the 10-pack. Having multiple batteries on hand means I can easily swap them out when needed, ensuring that my devices are always ready for use. This is especially important for items that may be used sporadically, like emergency lights, where having a charged battery readily available could make all the difference in a power outage or during a camping trip.
Moreover, the elxjar batteries come with a 24-month worry-free warranty and a commitment to customer service. This not only gives me peace of mind but also demonstrates the manufacturer’s confidence in their product. Knowing that I am covered in case of any issues significantly boosts my trust in the brand and their offerings. If you are like me, who values both quality and assurance in purchases, this warranty is a significant plus.
The potential applications for these batteries are extensive. Whether I am powering a wireless mouse for my home office or ensuring my flashlight is ready for nighttime outdoor activities, these batteries cater to a wide range of needs. Their rechargeable nature means I can also save money and reduce waste over time by not needing to constantly buy single-use batteries. It’s an environmentally friendly choice that aligns with my values of sustainability.
if you are in the market for reliable, rechargeable batteries, the elxjar (10-Pack) ICR 10440 Batteries are a solid choice. They offer a great balance of performance, convenience, and peace of mind with their warranty. I genuinely believe that investing in these batteries will not only enhance your device performance but also offer long-term savings and environmental benefits. So, if you’re ready to make a smart purchase that will serve you well across various devices, I highly recommend considering this battery pack!
Feature Specification Diameter 10.30mm ± 0.2mm (0.41″) Height 43.90mm ± 0.2mm (1.73″) Weight 0.32 oz (9g) Voltage 3.7V Capacity 320mAh Pack Size 10 x Battery Pack Warranty 24-Month Worry-Free Warranty
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Why the 10440 Lithium-Ion Battery is a Game-Changer for Me
As someone who values portability and efficiency in my everyday gadgets, the 10440 lithium-ion battery has truly transformed the way I power my devices. This small yet powerful battery has become a staple in my toolkit, especially for compact electronics like flashlights, remote controls, and various small devices. With its high energy density, I find that I can enjoy longer usage times without the constant need to recharge, which is a significant advantage in my busy lifestyle.
One of the standout features for me is the battery’s lightweight design. Being only slightly larger than a AAA battery, it fits seamlessly into my travel plans. Whether I’m hiking in the woods or just running errands around town, I can easily carry spare 10440 batteries without adding much bulk to my bag. Knowing that I have a reliable power source at hand gives me peace of mind, allowing me to focus on what really matters—enjoying my activities without interruptions.
Moreover, the rechargeability of the 10440 lithium-ion battery has made a noticeable impact on my sustainability efforts. By opting for these batteries, I’m reducing my reliance on disposable batteries that contribute to waste. I feel good knowing that I
Buying Guide for 10440 Lithium Ion Battery
Understanding 10440 Lithium Ion Batteries
When I first started exploring lithium-ion batteries, I quickly learned that the 10440 battery is a compact and versatile power source. Typically, it’s about the size of a AAA battery, yet it packs a significant punch with its power output. I found it particularly useful in various applications, such as flashlights, small electronics, and some medical devices.
Key Specifications to Consider
As I began my search, I realized that several specifications are crucial when choosing a 10440 lithium-ion battery. The most important ones include capacity (measured in milliampere-hours or mAh), voltage (usually 3.7V), and discharge rates. Higher capacity means longer usage time, which is something I always look for, especially in devices I use frequently.
Capacity and Runtime
I’ve found that capacity directly impacts how long my devices can run before needing a recharge. For instance, a battery with a higher mAh rating tends to last longer. I often consider my usage patterns to determine the right capacity for my needs. If I use a flashlight for extended periods, opting for a higher capacity battery is essential.
Battery Chemistry and Safety
Safety is a top priority for me when selecting a battery. I prefer batteries that feature built-in protection mechanisms against overcharging, short-circuiting, and overheating. Understanding the chemistry behind lithium-ion batteries has helped me appreciate the importance of safety ratings and certifications.
Compatibility with Devices
Before making a purchase, I always ensure that the 10440 battery is compatible with my devices. Checking the manufacturer’s specifications helps me avoid any compatibility issues. I’ve learned the hard way that not all devices are designed to work with every type of battery.
Charging Options
I also consider how I will charge the battery. Some 10440 batteries come with built-in charging capabilities, while others require an external charger. I prefer options that provide flexibility, allowing me to charge my batteries easily. It’s essential to use the recommended charger to maintain the battery’s lifespan.
Brand Reputation and Reviews
While I won’t endorse specific brands, I do pay attention to brand reputation and customer reviews. Reading user experiences gives me a clearer picture of a battery’s performance and reliability. I often look for feedback regarding longevity and performance under different conditions.
Price vs. Quality
In my experience, price can be a good indicator of quality, but it’s not always the case. I’ve seen budget options that perform well alongside premium-priced batteries. I focus on finding a balance between price and quality, ensuring that I get good value for my money without compromising safety.
Final Thoughts
Buying a 10440 lithium-ion battery requires careful consideration of various factors. By evaluating specifications, compatibility, and safety features, I feel more confident in my choices. My goal is always to find a reliable battery that meets my needs, enhances my devices, and ensures a safe usage experience. Happy shopping!
Author Profile

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Hi, I’m Dana Weaver a creative at heart with a decade-long career in content creation, branding, and visual storytelling. Back in 2019, I co-founded Ettakit, a Chicago-based digital content and branding agency built to help consumer packaged goods and wellness brands come to life through impactful visuals and strategy. That journey brought me incredible experiences from producing photo and video campaigns to crafting brand identities and web designs that told deeper stories. Along the way, I was humbled to be named in Forbes’ 30 Under 30 for Marketing & Advertising in 2022.
Starting in 2025, I began a new chapter stepping into the world of personal blogging. These days, I write hands-on reviews and informative articles about everyday products from wellness essentials and smart gadgets to home tools and parenting picks. After years of helping brands craft their voice, I wanted to use mine to bring honesty, curiosity, and clarity to the review space.
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