Streamlight MicroStream USB Replacement Battery | 66607

Overview of the Streamlight MicroStream USB Battery | 66607

When your Streamlight MicroStream USB flashlight starts fading before your shift ends, a fresh power cell brings it right back to life. The Streamlight MicroStream USB Battery (MPN 66607) is a genuine, factory-matched rechargeable lithium-ion battery built to restore full runtime to your everyday carry light.

This is the same blue, flat-top cylindrical cell that ships inside the light from the factory, marked with the Streamlight logo and battery part number 66607. It delivers 350mAh of capacity, recharges up to 300 times, and includes an on-board safety circuit for steady, protected power.

Whether you are a patrol officer, EMT, firefighter, or a homeowner who keeps a dependable light in a pocket or glove box, this replacement battery keeps your MicroStream USB working like new. WCUniforms is a veteran and family-owned specialty retailer, so you get authentic Streamlight parts backed by people who understand duty gear.

Key Features

• Genuine Streamlight part: Authentic 66607 battery engineered for the MicroStream USB, not a generic substitute.
• Chemistry: Rechargeable lithium-ion (Li-ion) cell rated at 3.7V.
• Capacity: 350mAh for up to 3.5 hours of run time per charge.
• Recharge life: Holds up to 300 charge cycles before replacement.
• Fast recharge: Reaches a full charge in about 4 hours.
• On-board safety circuit: Helps protect against overcharge for reliable, worry-free use.
• Charges in the light: Powers up inside the MicroStream USB through the flashlight's own USB port, with a red-to-green charge indicator.
• Compact flat-top design: Blue cylindrical cell that seats exactly like the original.

Specifications

Compatibility

The 66607 is designed for the Streamlight MicroStream USB rechargeable flashlight only. It seats and charges exactly like the factory cell in that model.

It is not a fit for the original AAA-powered MicroStream, the 66320 series, or other Streamlight lights that use different power cells. Before ordering, check the part number printed on your current battery and confirm it reads 66607 to avoid an incorrect fit.

Intended Users

Law enforcement officers and security personnel who rely on the MicroStream USB as a compact backup light can keep a charged spare on hand for long shifts. EMS providers and firefighters use the same light for quick checks and equipment inspections, and a fresh battery keeps it ready between calls.

Everyday carry users, outdoors enthusiasts, and homeowners also depend on this battery to bring an aging MicroStream USB back to full brightness instead of replacing the whole light.

What's Included

• One (1) Streamlight 66607 rechargeable lithium-ion battery

The MicroStream USB flashlight and charging cable are not included. This battery charges inside the flashlight using the light's built-in USB charging, so no separate charger is required.

Available at WCUniforms

WCUniforms is a veteran and family-owned specialty retailer focused on uniforms, tactical gear, and public safety equipment. We stock genuine Streamlight parts and accessories, so first responders and everyday carry users can keep trusted gear in service instead of replacing it. Shop with confidence at wcuniforms.com, where professionals find the equipment they depend on.