10 Best 18650 Batteries 2025 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.

The JESSPOW 18650 rechargeable batteries are a solid choice for anyone needing reliable power for various devices like flashlights, cameras, and small fans. With a capacity of 3300mAh, these batteries offer a decent amount of energy, ensuring longer usage times between charges. The 3.7V voltage is standard for lithium-ion batteries, making them compatible with a wide range of high-power devices. One of their notable strengths is the high energy aggregation technology, which purportedly allows them to last five times longer in high-drain applications. This can be particularly beneficial for users who frequently use devices that require a lot of power.

The flat top design is crucial to note since it may not fit all devices that typically use 18650 batteries, which often come in a button top variant. Users should double-check compatibility before purchasing to avoid any issues. While the batteries are designed to be charged and discharged at any time without harm, it's essential to use an appropriate charger to maintain their longevity and performance.

On the downside, while these batteries have received positive reviews, they sit in a competitive market where other brands may offer additional features like built-in protection circuits or higher discharge rates. Users who require batteries for particularly demanding devices may want to explore options with higher C-ratings. Additionally, the packaging includes only four batteries, so if you're looking to stock up, you might need to purchase multiple packs.

The AFSONGOO 18650 battery comes as a pack of two, each with a voltage of 3.7V and a capacity of about 3000-3400mAh, which is quite decent for devices like flashlights, headlamps, and RC cars. These are button top batteries, meaning they have a raised metal tip on the positive end, so it’s important to check if your device needs this type.

These batteries include intelligent cell technology that helps manage power efficiently, supporting stable performance in typical uses. Safety is a strong point here, as the batteries carry multiple certifications (CE, FCC, PSE, ROHS, UL) and have built-in protection against overcharging, overheating, and short circuits, reducing the risk of damage to your devices or battery itself.

AFSONGOO is not a very famous brand but appears reliable, backed by positive customer reviews averaging 4.3 stars out of 5, suggesting good user satisfaction. These batteries are a solid choice for everyday electronics needing reliable power and safety but may not suit specialized high-drain or flat-top battery needs.