10 Best 18650 Batteries 2025 in the United States

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.

The TEKOWEE 4 Pack 18650 rechargeable batteries deliver a solid 3000mAh capacity and 3.7V voltage, typical for this battery size, making them suitable for devices like LED flashlights, headlamps, and small electronics. These batteries stand out with their high cycle life—promising over 2000 recharge cycles—which means they should last a long time and save you money compared to disposable batteries.

Safety features such as short circuit, overcharge, and overcurrent protection add an important layer of security, helping to keep both the battery and your devices safe. The button top design fits many common devices, but it's important to confirm compatibility before buying.

TEKOWEE is a lesser-known brand but has received mostly positive customer reviews with a 4.4-star rating, indicating reasonable reliability and performance. This battery pack is a good choice if you want a dependable, rechargeable lithium battery for everyday devices with moderate power needs and appreciate built-in safety protections. For users requiring very high discharge rates or a well-established brand, other options might be preferable.

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.