STREAM 18650 USB BATTERY 2PK Review

The STREAM 18650 USB BATTERY 2PK Made a Bold First Impression

As someone who’s spent over a decade knee-deep in the world of tactical gear and outdoor equipment, I’ve seen my fair share of batteries. But the STREAM 18650 USB BATTERY 2PK from Streamlight immediately piqued my interest, boasting a built-in charging solution and compatibility with some of my favorite lights. These batteries promise to simplify power management in the field, offering a rechargeable alternative to standard disposables.

I was tired of constantly buying and disposing of CR123A batteries for my Streamlight flashlights. The promise of a rechargeable solution that could be topped off via USB was incredibly appealing, potentially saving me money and reducing environmental impact. Upon unboxing the STREAM 18650 USB BATTERY 2PK, I was immediately struck by the solid feel of the batteries. The slightly heavier weight (1.7 oz) compared to standard 18650s hinted at the integrated charging circuitry.

Compared to standard unprotected 18650 batteries, the STREAM 18650 USB BATTERY 2PK has a more robust feel, and a significantly simpler charging solution than batteries requiring an external charger. I’ve used brands like Olight’s proprietary magnetic charging batteries, and while convenient, I prefer the universal micro-USB of the STREAM 18650 USB BATTERY 2PK for ease of use in a pinch. My initial excitement stemmed from the potential convenience and cost-effectiveness, and the build quality seemed to support that expectation.

Real-World Testing: Putting STREAM 18650 USB BATTERY 2PK to the Test

First Use Experience

My first real test for the STREAM 18650 USB BATTERY 2PK came during a weekend backpacking trip in the Allegheny National Forest. I paired the batteries with my Streamlight ProTac HL-X, a reliable light I often rely on for navigating trails at night. The weather was surprisingly damp, with persistent drizzle turning the forest floor into a muddy slip-and-slide.

The batteries performed admirably, providing consistent power to the ProTac HL-X for several hours each night. I appreciate that the integrated safety circuit protected the battery from over-discharge. Charging was simple using a portable power bank and a standard micro-USB cable. No issues or surprises arose during the initial use, and the convenience of USB charging was immediately apparent.

Extended Use & Reliability

After several months of consistent use, the STREAM 18650 USB BATTERY 2PK has proven to be a reliable power source. The outer shell shows minimal signs of wear, despite being subjected to bumps and scrapes inside my pack. Maintenance is minimal – just a quick wipe down if they get dirty. These batteries have outperformed my expectations, offering a seamless transition to rechargeable power in my existing Streamlight flashlights.

Breaking Down the Features of STREAM 18650 USB BATTERY 2PK

Specifications

The STREAM 18650 USB BATTERY 2PK is a button-top lithium-ion battery designed for high-drain devices. Here are the key specifications:

• Battery Type: 18650 Lithium-Ion.
• Charging: Micro-USB input, 5-hour charge time.
• Safety: Integrated safety circuit (overcharge/overdischarge protection).
• Dimensions: 2.75 inches (7.0 cm) Length.
• Weight: 1.7 oz (48 grams).
• Compatibility: Specifically designed for Streamlight PolyTac X ProTac 2L-X ProTac HL-X and ProTac HL5-X, transforming them into rechargeable systems.

These specs matter because they directly impact the battery’s performance and lifespan. The integrated safety circuit is crucial for preventing damage and ensuring safe operation, while the USB charging simplifies the recharging process in the field. The compatibility ensures a perfect fit and optimized performance within the specified Streamlight products.

Performance & Functionality

The STREAM 18650 USB BATTERY 2PK performs its job exceptionally well, providing reliable and consistent power to compatible Streamlight flashlights. The batteries deliver the expected runtime and maintain a stable output. A minor improvement would be adding an LED indicator on the battery itself to display its charging status. Overall, it meets and exceeds expectations for a rechargeable 18650 battery.

Design & Ergonomics

The STREAM 18650 USB BATTERY 2PK features a robust design with a durable outer shell that can withstand the rigors of outdoor use. The weight feels substantial without being cumbersome. The simple design ensures that there is virtually no learning curve.

Durability & Maintenance

Based on my experience, the STREAM 18650 USB BATTERY 2PK is built to last, with the integrated safety circuits providing longevity. Maintenance is straightforward, requiring only occasional cleaning to remove dirt or debris.

Accessories and Customization Options

The STREAM 18650 USB BATTERY 2PK requires no additional accessories for basic functionality, as the USB charging is built-in. However, a portable power bank or USB wall adapter is necessary for recharging in the field or at home. These batteries are specifically designed for compatibility with Streamlight products, minimizing the need for additional aftermarket modifications.

Pros and Cons of STREAM 18650 USB BATTERY 2PK

Who Should Buy STREAM 18650 USB BATTERY 2PK?

The STREAM 18650 USB BATTERY 2PK is perfect for anyone who frequently uses compatible Streamlight flashlights and wants to switch to a rechargeable power solution. This includes outdoorsmen, law enforcement officers, security personnel, and everyday users who rely on a dependable light source. Individuals who prefer to use other flashlight brands or those who already own a dedicated 18650 charger might not find this product as appealing. A must-have accessory is a portable power bank for convenient charging on the go.

Conclusion on STREAM 18650 USB BATTERY 2PK

The STREAM 18650 USB BATTERY 2PK is a fantastic product that delivers on its promise of providing a convenient and reliable rechargeable power solution for compatible Streamlight flashlights. The integrated USB charging is a game-changer, eliminating the need for a separate charger and simplifying power management in the field. At $28.49 for a two-pack, the price is justified by the long-term cost savings and environmental benefits of switching from disposable batteries. I wholeheartedly recommend the STREAM 18650 USB BATTERY 2PK to anyone looking to upgrade their compatible Streamlight flashlight with a modern, rechargeable power source. Invest in the STREAM 18650 USB BATTERY 2PK and ditch the disposable batteries for good!