Streamlight - SL-B50 USB-C Rechargeable Battery (1-Pack)

The SL-B50 USB-C rechargeable battery is specifically designed to power Streamlight ProTac 2.0 series lights, offering a reliable and long-lasting energy source. Its high capacity of 4900mAh ensures that your lights remain operational for extended periods, which is crucial during emergencies or prolonged outdoor activities. The built-in USB-C port allows for convenient recharging, making it easier to keep your lights ready for use without the need for disposable batteries. This not only provides cost savings over time but also reduces waste, aligning with sustainable practices.

The SL-B50 battery is designed for at least 500 recharge cycles, providing significant longevity compared to disposable batteries. This makes it a cost-effective solution for frequent users of Streamlight ProTac 2.0 series lights. However, the actual lifespan can vary based on usage patterns and environmental conditions. Regularly using the battery to its full capacity before recharging can help maximize the number of effective cycles.

The USB-C charging feature of the SL-B50 battery significantly enhances its usability by providing fast and efficient charging. With a full recharge time of approximately 6 hours, users can quickly power up their devices and minimize downtime. This is particularly beneficial in emergency scenarios where time is of the essence. The universal compatibility of USB-C ports also means that you can use a wide range of charging cables and power sources, increasing the battery's versatility.

The SL-B50 battery is specifically designed for Streamlight ProTac 2.0 series lights, including the ProTac 2.0, ProTac 2.0 Headlamp, and ProTac 2.0 Rail Mount. While it may physically fit other devices that accept similar battery types, compatibility is not guaranteed. It's important to check the voltage and capacity requirements of any other devices before attempting to use the SL-B50 battery to avoid potential damage or suboptimal performance.

The SL-B50 battery is equipped with a built-in LED charge indicator that helps users monitor the charging status. The LED displays red when the battery is charging and turns green once it is fully charged. This feature is particularly useful for ensuring the battery is ready for use, especially in situations where a fully charged battery is critical, such as during night-time operations or in remote locations.

The SL-B50 battery supports sustainable preparedness by reducing reliance on disposable batteries. Its rechargeable nature means fewer batteries end up in landfills, which is a key consideration for environmentally conscious users. Additionally, the long lifespan and high capacity of the battery minimize the frequency of replacements, further reducing waste and promoting a more sustainable approach to energy use in emergency and tactical scenarios.

The SL-B50 battery, like most lithium-ion batteries, can be affected by extreme cold weather conditions. Cold temperatures can reduce the battery's effective capacity and discharge rate. To mitigate this, it's advisable to keep the battery warm before use in cold environments, such as by storing it in an inner pocket close to your body. This practice helps maintain its performance and ensures that your Streamlight devices remain operational when needed.

Incorporating the SL-B50 battery into your energy preparedness plan enhances your ability to maintain lighting and visibility during emergencies. As part of a broader strategy, it complements other power solutions such as solar chargers and backup generators. For a more comprehensive understanding of energy preparedness, including how to integrate rechargeable batteries effectively, explore our Energy and Power Preparedness Guide.

When storing the SL-B50 battery for long periods, it's important to keep it in a cool, dry place to preserve its lifespan. Avoid storing it in fully charged or completely discharged states; instead, aim for a 40-60% charge level. This practice helps maintain battery health and readiness for future use. Regularly checking the battery's charge status every few months is also recommended to ensure it remains in optimal condition.

Safety precautions for using the SL-B50 battery include avoiding exposure to extreme temperatures and physical damage. It's crucial to use the battery only with compatible devices to prevent overheating or potential hazards. Additionally, do not attempt to open or modify the battery, as this can lead to damage and void any manufacturer safety guarantees. For further guidance on maintaining battery safety and performance, see our Batteries, Packs & Chargers collection.