STREAM 18650 USB BATTERY 2PK Review

First Thoughts on the STREAM 18650 USB BATTERY 2PK

The STREAM 18650 USB BATTERY 2PK promises to modernize power for some of Streamlight’s most popular tactical lights. Forget external chargers and proprietary cables; these batteries integrate a micro-USB port directly on the cell, offering a convenient and accessible charging solution. I was immediately intrigued by the potential to simplify my gear setup and reduce the number of chargers I needed to carry.

I’d been frustrated with constantly searching for the right charger for my Streamlight ProTac HL-X. Traditional charging systems felt clunky and outdated. I was specifically looking for a reliable, rechargeable power source that could easily integrate into my existing setup without requiring yet another specialized charger.

Upon unboxing the STREAM 18650 USB BATTERY 2PK, the immediate impression was one of solid build quality. The batteries felt weighty and robust, a reassuring sign considering the demands placed on them in the field. The integrated micro-USB port appeared well-protected.

Compared to standard 18650 batteries and even some other rechargeable options I’ve used, the STREAM 18650 USB BATTERY 2PK stood out due to its self-contained charging capability. Other options require carrying a separate charger, adding bulk and potential points of failure. I chose this option for its simplicity and integrated safety features.

My first impression was cautiously optimistic. The integrated charging feature seemed promising, but I was eager to see how these batteries would perform under real-world conditions and whether their capacity and longevity would meet my expectations. The advertised integrated safety circuit was a particularly welcome feature.

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

First Use Experience

The initial testing ground for the STREAM 18650 USB BATTERY 2PK was a week-long backcountry camping trip in the Pacific Northwest. I primarily used them in my Streamlight ProTac HL-X, relying on the light for everything from setting up camp in the dark to navigating trails at night. The weather was a mixed bag, with periods of heavy rain and damp conditions interspersed with clear, cold nights.

The batteries performed admirably even in wet and cold conditions. I didn’t observe any significant drop in performance or battery life despite the challenging environment. Using the integrated USB charging was incredibly convenient; I simply plugged the light into a portable power bank each morning to top it off.

The STREAM 18650 USB BATTERY 2PK was exceptionally easy to use; no learning curve was involved. I simply swapped out my existing battery and was ready to go. The convenience of USB charging was a massive improvement over my previous setup.

My only surprise after the first use was how long the initial charge took (approximately 5 hours as advertised). This wasn’t necessarily a problem, but it was important to plan accordingly.

Extended Use & Reliability

After several months of regular use, the STREAM 18650 USB BATTERY 2PK has proven to be a reliable and durable power source. I’ve used them extensively for everything from nighttime hikes to tactical training exercises. They’ve held up remarkably well.

So far, I’ve observed no signs of significant wear and tear. The batteries still hold a charge as well as they did when new, and the integrated USB ports remain secure and functional. The robust construction has clearly stood up to the rigors of outdoor use.

Maintenance is virtually nonexistent. I occasionally wipe the batteries down with a dry cloth to remove any dirt or debris, but that’s it. The simplicity of maintenance is a major plus.

Compared to my previous experience with standard rechargeable 18650 batteries and external chargers, the STREAM 18650 USB BATTERY 2PK outperforms them significantly in terms of convenience, reliability, and ease of use. The integrated charging system eliminates the need for a dedicated charger, streamlining my gear and simplifying the charging process.

Breaking Down the Features of STREAM 18650 USB BATTERY 2PK

Specifications

• Battery Type: 18650 Lithium Ion Battery. This is a common and readily available battery format, making replacements easy to find if ever necessary.
• Battery Quantity: 2. Having two batteries ensures you always have a spare ready to go.
• Length: 2.75 inches (6.98 centimeters). This standard length ensures compatibility with most devices designed for 18650 batteries.
• Weight: 1.70 ounces (48.19 grams). The added weight of the charging circuit is minimal, not significantly impacting overall device weight.
• Charging: Micro-USB input; charges in 5 hours. On-board charging eliminates the need for a separate charger, adding significant convenience.
• Safety: Integrated safety circuit protects battery from overcharge/overdischarge. This is crucial for protecting the battery’s lifespan and preventing potential hazards.
• Compatibility: Use the 18650 USB battery to power the PolyTac X ProTac 2L-X ProTac HL-X and ProTac HL5-X and transform these multi-fuel lighting tools into rechargeable systems. This is a key benefit, allowing users to convert existing flashlights to rechargeable operation.

Performance & Functionality

The STREAM 18650 USB BATTERY 2PK performs its job exceptionally well. They provide reliable power to compatible flashlights, and the integrated charging system works flawlessly. The convenience of charging directly via USB is a game-changer.

The primary strength is undoubtedly the integrated USB charging. The weakness is the slightly longer charging time compared to some dedicated chargers, but this is a minor trade-off for the added convenience. The 5-hour charge time is a specification to note.

The batteries meet and slightly exceed my expectations. The convenience and reliability have made them an indispensable part of my gear setup.

Design & Ergonomics

The STREAM 18650 USB BATTERY 2PK boasts a solid build quality. The materials used feel durable and the battery is well-constructed. The batteries feel substantial in hand without being excessively heavy.

The design is user-friendly, with no learning curve whatsoever. Charging is as simple as plugging in a micro-USB cable.

Durability & Maintenance

Based on my experience, the STREAM 18650 USB BATTERY 2PK is built to last. The batteries have withstood several months of rigorous use without showing any signs of degradation. Maintenance is minimal, requiring only occasional cleaning.

Accessories and Customization Options

The STREAM 18650 USB BATTERY 2PK comes as a set of two batteries. No other accessories are included, as the main selling point is the integrated USB charging capability. The batteries are compatible with any device designed to accept standard 18650 batteries within their specified voltage and current ranges. The integrated USB charging eliminates the need for proprietary chargers.

Pros and Cons of STREAM 18650 USB BATTERY 2PK