Streamlight SL-B50 Rechargeable Battery 3.6V 4900mAh Silver/Black

The Streamlight SL-B50 rechargeable lithium-ion battery delivers professional-grade power for demanding tactical and industrial applications. This high-capacity battery provides extended runtime and reliable performance when standard alkaline batteries fall short.

What Makes This Different

The SL-B50 features a 4,900 mAh capacity that significantly outperforms standard rechargeable batteries in its class. Built with lithium-ion technology, it maintains consistent voltage output throughout the discharge cycle, ensuring steady light output until depletion. The integrated protection circuit prevents overcharge, over-discharge, and short circuit conditions that can damage lesser batteries.

Key Features

• 4,900 mAh lithium-ion capacity for extended runtime
• 3.6V nominal voltage with consistent power delivery
• Built-in protection circuit prevents overcharge and over-discharge
• Compatible with select Streamlight flashlights and weapon lights
• Silver and black housing construction for durability
• Rechargeable design reduces long-term operating costs
• Low self-discharge rate maintains charge during storage

Field testing shows the SL-B50 provides up to 300% longer runtime compared to standard alkaline batteries in high-drain applications. Law enforcement and security professionals rely on this battery for extended patrol shifts and emergency response situations. The lithium-ion chemistry performs reliably in temperature extremes from -10°F to 140°F, making it suitable for outdoor operations and vehicle storage.

Technical Specs

• Battery Type: Lithium-ion rechargeable
• Voltage: 3.6V nominal
• Capacity: 4,900 mAh
• Color: Silver/Black
• Protection: Integrated circuit board
• Operating Temperature: -10°F to 140°F (-23°C to 60°C)
• Manufacturer: Streamlight Inc.
• Model Number: 22111

Professional users choose the SL-B50 for mission-critical applications where battery failure is not an option. The high capacity and robust construction ensure reliable power when it matters most, while the rechargeable design provides long-term value for high-usage applications.