---
product_id: 540995261
title: "22111 SL-B50 Protected Lithium-Ion USB-C Rechargeable Battery with Integrated Charge Port, 1-Pack"
brand: "streamlight"
price: "267 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Streamlight"
url: https://www.desertcart.pl/products/540995261-22111-sl-b50-protected-lithium-ion-usb-c-rechargeable-battery
store_origin: PL
region: Poland
---

# USB-C fast 6-hour recharge 4900mAh high-capacity power Integrated multi-layer safety 22111 SL-B50 Protected Lithium-Ion USB-C Rechargeable Battery with Integrated Charge Port, 1-Pack

**Brand:** streamlight
**Price:** 267 zł
**Availability:** ✅ In Stock

## Summary

> 🔋 Charge ahead with power and peace of mind!

## Quick Answers

- **What is this?** 22111 SL-B50 Protected Lithium-Ion USB-C Rechargeable Battery with Integrated Charge Port, 1-Pack by streamlight
- **How much does it cost?** 267 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/540995261-22111-sl-b50-protected-lithium-ion-usb-c-rechargeable-battery)

## Best For

- streamlight enthusiasts

## Why This Product

- Trusted streamlight brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast USB-C Recharge:** Get fully charged in just 6 hours with universal USB-C compatibility.
- • **Long-Term Reliability:** Rechargeable 500+ cycles backed by a 2-year limited warranty for peace of mind.
- • **Seamless Compatibility:** Designed to perfectly power ProTac 2.0 series for uninterrupted performance.
- • **Power That Lasts All Night:** 4900mAh capacity fuels your adventures without compromise.
- • **Built-In Safety You Can Trust:** Overcharge, over-discharge, and pressure vent protections keep you worry-free.

## Overview

The Streamlight 22111 SL-B50 is a 3.6V, 4900mAh protected lithium-ion rechargeable battery featuring an integrated USB-C charge port and status indicators. It charges fully in 6 hours, supports over 500 recharge cycles, and includes advanced safety features like overcharge protection and a pressure vent. Designed specifically for Streamlight ProTac 2.0 products, it offers reliable, long-lasting power with a 2-year warranty.

## Description

The SL-B50 protected Li-Ion rechargeable battery pack is designed for select Streamlight products. The battery features a built in USB-C port and charge indicator. 3.6V, 4900mAh, with on-board safety control circuit; rechargeable at least 500 times. USB-C input charges from Streamlight AC/USB adapters and most other USB sources; battery charge status indicators around the port - red for charging, green for charged; charges in 6 hours using USB-C input. Integrated safety circuit protects batteries from overcharge/over-discharge; additional safety features: pressure vent and integrated safety fuse. Use the SL-B50 battery pack to power the ProTac 2.0, ProTac 2.0 Headlamp, and the ProTac 2.0 Rail Mount. Dimension: length: 3.26-Inch (8.28 cm); diameter: 0.905-Inch (2.30 cm) maximum; weight: 3-Ounces (85g). 2-year limited warranty.

Review: Great battery for your streamlight product - Streamlight is a great product. I use my headlamp for hunting and it lasts all night. Charge off the headlamp itself or the battery itself has a usb-c charger in it. GREAT idea. Works great fits right and does not weigh too much. Worth the price and investment for your product
Review: Solid battery. - Holds a charge very well and lasts a long time, even if using flashlight at highest brightness. Love the USB recharging capability.

## Features

- Protected Lithium-Ion rechargeable battery, 3.6V, 4900mAh, with on-board safety control circuit; rechargeable at least 500 times
- USB-C input charges from Streamlight AC/USB adapters and most other USB sources; battery charge status indicators around the port - red for charging, green for charged; charges in 6-hours using USB-C input
- Integrated safety circuit protects batteries from overcharge/over-discharge; additional safety features: pressure vent and integrated safety fuse
- Use the SL-B50 battery pack to power the ProTac 2.0, ProTac 2.0 Headlamp, and the ProTac 2.0 Rail Mount
- 2-year limited warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery Capacity | 4900 Milliamp Hours |
| Battery Cell Composition | Lithium Ion |
| Brand | Streamlight |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Recommended Uses For Product | Cycling |
| Unit Count | 1.0 Count |

## Product Details

- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Brand:** Streamlight
- **Battery Cell Composition:** Lithium Ion
- **Battery Capacity:** 4900 Milliamp Hours
- **Recommended Uses For Product:** Fits select Streamlight flashlights that take SL-B50 battery packs

## Images

![22111 SL-B50 Protected Lithium-Ion USB-C Rechargeable Battery with Integrated Charge Port, 1-Pack - Image 1](https://m.media-amazon.com/images/I/61Lu864bYIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great battery for your streamlight product
*by L***M on January 21, 2026*

Streamlight is a great product. I use my headlamp for hunting and it lasts all night. Charge off the headlamp itself or the battery itself has a usb-c charger in it. GREAT idea. Works great fits right and does not weigh too much. Worth the price and investment for your product

### ⭐⭐⭐⭐⭐ Solid battery.
*by K***M on January 10, 2026*

Holds a charge very well and lasts a long time, even if using flashlight at highest brightness. Love the USB recharging capability.

### ⭐⭐⭐⭐⭐ Great product
*by T***E on February 13, 2026*

Works perfect

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**Shop now:** [https://www.desertcart.pl/products/540995261-22111-sl-b50-protected-lithium-ion-usb-c-rechargeable-battery](https://www.desertcart.pl/products/540995261-22111-sl-b50-protected-lithium-ion-usb-c-rechargeable-battery)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-03-12*