In the ever-evolving world of outdoor gear and equipment, the importance of reliable power sources cannot be overstated. Whether you're an avid hiker, a passionate camper, or a dedicated outdoor enthusiast, having a dependable battery that can keep your essential devices powered up is crucial. Enter the XTAR 18650 4000mAh Protected Battery, a game-changer in the realm of high-capacity, long-lasting energy solutions.
Who Is This For?
The XTAR 18650 4000mAh Protected Battery is designed to cater to a wide range of users, from outdoor adventurers and survival enthusiasts to everyday gadget lovers. Its impressive capacity and advanced safety features make it an ideal choice for those who demand reliable power on the go.
Hikers, campers, and backpackers will appreciate the battery's ability to keep their headlamps, lanterns, and other essential devices powered for extended periods, ensuring they never have to worry about running out of juice in the great outdoors. Cyclists and motorcycle riders will find the XTAR battery to be a valuable companion, providing the necessary power for their bike lights and other electronic accessories.
For those who rely on powerful flashlights, the XTAR 18650 4000mAh Protected Battery is a must-have. Its high-capacity and protected design make it a perfect match for high-performance tactical and EDC (Everyday Carry) flashlights, ensuring consistent and reliable illumination when you need it most.
First Impressions and Features
First Impressions
Upon receiving the XTAR 18650 4000mAh Protected Battery, the first thing that struck me was well-constructed design. The battery exudes a sense of quality and durability. The dimensions are standard for an 18650 battery, measuring approximately 18mm in diameter and 65mm in length, making it a perfect fit for a wide range of devices.
One of the standout features of the XTAR battery is its protected design. This means that the battery has built-in safety circuitry that safeguards against common issues such as overcharging, over-discharging, and short circuits. This added layer of protection gives users peace of mind, knowing that their valuable devices are being powered by a reliable and safe energy source.
Specifications
The XTAR 18650 4000mAh Protected battery boasts some impressive specifications:
· Nominal capacity: 4000mAh
· Nominal energy: 14.4Wh
· Nominal voltage: 3.6V
· Max continuous discharge current: 10A
· Cycle life: 600＋
· Storage temperature: -20℃ – 40℃
· Operating temperature: -20℃ – 60℃
· Weight: ≤50g
· Dimensions: φ18.40mm x H69.20mm
key features:
Unparalleled Capacity and Longevity
The XTAR 18650 4000mAh Protected Battery boasts an impressive capacity of 4000mAh, making it one of the most powerful and long-lasting options on the market. With this remarkable capacity, you can enjoy extended runtimes and fewer battery changes, ensuring your lighting gear is always ready for action, whether you're embarking on a rugged outdoor adventure or tackling a demanding task in your workshop.
But the XTAR 18650 4000mAh Protected Battery's prowess doesn't stop there. It also features an exceptional cycle life of over 600 charges, meaning you can rely on this battery to deliver consistent performance for years to come. This remarkable longevity is a testament to the battery's superior construction and advanced technology, making it a wise investment for anyone who values reliable and long-lasting power sources.
Comprehensive Protection for Safety and Reliability
The XTAR 18650 4000mAh Protected Battery is not just about raw power; it also prioritizes safety and reliability. Equipped with a built-in protection plate, this battery offers a comprehensive suite of safeguards to ensure optimal performance and extended lifespan.
The protection plate includes features such as over-discharge protection, over-charge protection, and short-circuit protection, all working in harmony to safeguard your valuable equipment and prevent potentially dangerous situations. By extending the battery's life and reducing heat loss, the protection plate helps to maintain the XTAR 18650 4000mAh Protected Battery's peak performance, even after numerous charge-discharge cycles.
Versatile Compatibility for a Wide Range of Applications
One of the standout features of the XTAR 18650 4000mAh Protected Battery is its exceptional compatibility. Designed to be widely applicable, this battery is suitable for a vast array of lighting gear, including EDC (Everyday Carry) flashlights, tactical flashlights, camping lanterns, diving lights, and more.
This versatility is a game-changer for outdoor enthusiasts, professionals, and anyone who relies on high-performance lighting equipment. Whether you're a hiker, a mechanic, or a search-and-rescue worker, the XTAR 18650 4000mAh Protected Battery can seamlessly integrate with your gear, ensuring reliable and consistent power delivery no matter the task at hand.
Powerful Performance for Demanding Applications
The XTAR 18650 4000mAh Protected Battery is not just a standard power source; it's a powerhouse designed to tackle the most demanding applications. With its low internal resistance and exceptional discharge capabilities, this battery is particularly well-suited for equipment that requires strong power output, such as high-lumen flashlights, powerful work lights, and other energy-intensive devices.
By minimizing heat generation and power loss, the XTAR 18650 4000mAh Protected Battery ensures your lighting gear operates at peak efficiency, delivering the performance you need when you need it most. Whether you're working in a dimly lit job site or navigating through the wilderness, this battery's robust power delivery will keep your equipment running strong.
Multiple test
Discharge Performance
Here are the discharge curves for the battery at different discharge currents. The vertical axis shows the voltage (V), and the horizontal axis shows the discharged capacity (Ah). The brown line represents the variation in internal resistance (IR).
Protection Circuit Test
I also test at what voltage the battery’s protection circuit would be activated. The test is very simple. First, I charge the battery to 3V, then discharge it at 800mA after a short pause.
Temperature Test
Under different discharge currents, the battery performance is as follows:
0.8A: Battery temperature is 28.7°C.
4A: Battery temperature is 42.5°C.
8A: Battery temperature is 59.9°C, which is within the acceptable range.
9A: Battery temperature is 64.6°C, slightly exceeding the 60°C limit.
Capacity Test
Let’s talk about the battery capacity. Compared to the earlier Panasonic NCR 18650B, this XTAR 18650 battery has nearly 20% more capacity. I guess this improvement is due to advancements in the electrode formula, such as adding nickel oxide, and increasing the number of electrode layers by reducing the thickness of the aluminum and copper foils inside the battery.
However, this could also make heat dissipation more challenging and limit the maximum discharge current. The XTAR battery exceeded 60°C during a 9A discharge, which is likely caused by this.
My Personal Experience
I've been using the XTAR 18650 4000mAh Protected Battery for several months now, and I can confidently say that it has exceeded my expectations. The battery's impressive capacity has allowed me to power my high-performance flashlight for extended periods, even during extended outdoor adventures.
One of the most notable aspects of the XTAR battery is its consistent performance. Unlike some lower-quality batteries that can experience a rapid decline in capacity over time, the XTAR 18650 4000mAh Protected Battery has maintained its impressive charge-holding abilities, ensuring that I can rely on it to power my devices whenever I need it.
The protected design has also proven to be a valuable feature. On a few occasions, I've accidentally left my flashlight turned on, only to find the XTAR battery still holding a decent charge. The built-in safety circuitry has effectively prevented any potential damage to the battery or the device it was powering.
Conclusion
In conclusion, the XTAR 18650 4000mAh Protected Battery is a standout performer in the world of high-capacity, reliable power sources. Its impressive capacity, protected design, and consistent performance make it an essential addition to the gear of any outdoor enthusiast, gadget lover, or anyone who demands reliable power on the go.
Whether you're embarking on a rugged hiking adventure, exploring the great outdoors, or simply need a dependable battery for your everyday carry, the XTAR 18650 4000mAh Protected Battery is a must-have. Its versatility and exceptional quality make it a worthy investment that will serve you well for years to come.
So, if you're in the market for a high-performance, long-lasting battery that can keep your essential devices powered up, look no further than the XTAR 18650 4000mAh Protected Battery. It's a true powerhouse that will elevate your outdoor experiences and everyday life.
