SL-B9 BATTERY PACK - 2PK Manufacturer Model Number: 20237 Manufacturer: Streamlight Model: SL-B9 Battery Pack Type: Accessory-Lights Item Type: Accessory Overall Length: 1.36" Weight: .72 oz. Shipping Weight: 0.1 Feature: Li-lon USB Rechargeable Pack Feature: Charges in 2.5 Hours Feature: 2 Pack Optic Adjustable Objective: false Optic Reticle Illuminated: false