Streamlight SL-B26 18650 USB Rechargeable Battery 2-Pack

The Streamlight SL-B26 is a rechargeable 18650-format lithium‑ion replacement cell intended for use in compatible Streamlight flashlights. It supplies 3.7V with a rated capacity of 2600 mAh and includes an integrated safety circuit to protect against overcharge and over-discharge. The cell is supplied in a two-pack and features onboard charge status indicators for straightforward charging feedback.

Key Specifications

• Brand: Streamlight.
• Model: SL-B26.
• Battery chemistry: Lithium‑Ion.
• Cell format: 18650.
• Rated capacity: 2600 mAh.
• Nominal voltage: 3.7V.
• Length: 2.75 inches (7.0 cm).
• Rechargeable: Yes.
• Quantity: 2-pack.
• Safety features: Integrated safety circuit to protect from overcharge and over-discharge.

These SL-B26 cells provide a rechargeable alternative to disposable cells for compatible Streamlight lights, delivering the convenience of onboard charge indicators and protective circuitry in a compact 18650 package. The 2-pack configuration supports keeping a ready spare on hand or converting dual-battery setups to rechargeable operation.