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 JESSPOW 18650 rechargeable batteries offer a solid capacity of 3300mAh at 3.7 volts, which is good for powering devices like flashlights, headlamps, RC cars, and garden lights. These batteries are button top style, so it’s important to ensure your device supports that shape before buying. They use lithium-ion cells, which generally provide a longer lifespan and can be charged or discharged at any time without damage, adding to their convenience.

The product claims to use high energy aggregation technology, promising up to five times longer life in high drain devices, which is beneficial if you frequently use power-hungry gadgets. JESSPOW is the brand here, and while it’s not a top-tier or well-known manufacturer, the customer reviews are quite positive, with a 4.4 out of 5 rating from over 300 users, indicating reliable performance. The package includes four batteries and customer support is available if needed.

These batteries are well-suited for everyday use in moderate to high power devices where long battery life and rechargeability are valued. For specialized or extreme performance needs, additional technical details might be necessary.

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.