10 Best 18650 Batteries 2026 in the United States

The AFSONGOO 2 Pack 3.7 Volt 18650 Rechargeable Battery offers a solid capacity of 3400mAh, making it suitable for a variety of devices like flashlights, headlamps, and RC cars. The wide compatibility ensures it can be used in many different electronic applications, which is a great advantage for versatility. The batteries come with advanced smart cell technology to provide efficient power management and longer usage, which is beneficial for users needing reliable performance over time.

Additionally, the safety certifications (CE, FCC, PSE, ROHS, and UL) and built-in protection features (against overcharging, overheating, and short circuits) ensure that these batteries are safe for use in various devices without risk of damage or failure. This attention to safety is a significant strength, especially for users concerned about battery reliability and device protection.

However, there are a few drawbacks to consider. These batteries are flat top cells, which means they might not be compatible with all devices. Users must verify that their devices can accommodate flat top batteries before purchasing. Additionally, while the batteries are of good quality and backed by essential certifications, the product is manufactured in China, which might be a concern for some users looking for domestically produced options.

This 18650 rechargeable battery from PAOWANG offers a high capacity of 9900mAh, which is above average and means it can last longer between charges compared to many other batteries in this category. It provides the standard voltage of 3.7V typical for 18650 cells, making it suitable for devices like headlamps, LED flashlights, toys, and similar gadgets. One notable advantage is the inclusion of six safety protections, such as temperature control, short circuit, and overcharge protection, which adds a good level of safety during use and charging. The flat top design is something to watch for, as not all devices accept flat top batteries, so checking compatibility is important before purchase.

Another plus is the battery’s low self-discharge rate, keeping about 80% capacity even after two years without use, which is great if you don’t use it frequently. The package includes a USB charger, which is convenient for recharging on the go. This battery is a solid choice if you want long-lasting power and built-in safety for everyday devices with moderate power needs, but if you need high discharge performance or a trusted brand with a longer track record, you might want to explore other options.

The JESSY 18650 Rechargeable Battery offers a solid 3300mAh capacity at 3.7V, which is suitable for powering devices like LED flashlights, headlamps, small fans, and other gadgets that require reliable energy. This flat-top battery size (18 x 65 mm) is typical for 18650 cells but is not interchangeable with AA or AAA batteries, so it's important to check your device's battery requirements before buying.

One of the strengths of these batteries is their built-in protections against short circuits, overcharging, and overcurrent, which help keep your devices safe and extend the battery life. The JESSY brand delivers reliable quality supported by customer-friendly guarantees that offer replacement or refund if not satisfied. It should be noted that the battery size and chemistry are standard, so those unfamiliar with 18650 batteries should confirm compatibility carefully to avoid purchasing the wrong type.

These batteries represent a good choice for affordable, dependable power for everyday gadgets, especially where safety features are important. However, they may not be the best option for high-performance or specialized equipment that requires specific discharge rates.