Streamlight SL-B34 3500mAh Battery for MegaStream® USB Flashlights | 22131
SKU: 51041324882

Streamlight SL-B34 3500mAh Battery for MegaStream® USB Flashlights | 22131

$21.55 $23.95
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Description

Streamlight SL-B34 3500mAh Battery for MegaStream® USB Flashlights | 22131Streamlight SL B34 3500mAh Battery for MegaStream USB Flashlights 22131 Reliable Power for Your Streamlight MegaStream If you rely on your Streamlight MegaStream USB flashlight, you need a battery that lasts and charges easily. The Streamlight SL B34 3500mAh battery is the perfect solution. Whether you need a replacement or a spare, this battery delivers long lasting performance and simple recharging, making it ideal for professionals and outdoor

Streamlight SL-B34 3500mAh Battery for MegaStream USB Flashlights | 22131

Reliable Power for Your Streamlight MegaStream

If you rely on your Streamlight MegaStream USB flashlight, you need a battery that lasts and charges easily. The Streamlight SL-B34 3500mAh battery is the perfect solution. Whether you need a replacement or a spare, this battery delivers long-lasting performance and simple recharging, making it ideal for professionals and outdoor users who do not want interruptions.

Hassle-Free Charging with USB-C

Forget about hunting for a special charger or waiting too long to get back to full power. The SL-B34 comes with a built-in USB-C port, so you can charge your battery using the same cable as your phone or other devices. The battery features a clear indicator light that shows red when charging and green when fully charged. This gives you instant feedback and helps you plan ahead, so your flashlight is always ready when you need it.

Key Features

  • Compatible With: Streamlight MegaStream USB Flashlights

  • High Capacity: 3500mAh battery for up to 13 hours of runtime

  • Rechargeable: USB-C port for fast, convenient charging

  • Visual Indicator: Red/green light displays charging status

  • Manufacturer's Part Number (MPN): 22131

  • Universal Product Code (UPC): 809262213148

Stay Ready in Every Situation

Running out of flashlight power can be frustrating, especially during emergencies or outdoor trips. The Streamlight SL-B34 solves this by delivering dependable performance and an easy charging experience. Its high capacity means fewer interruptions, while the USB-C charging and clear indicator give you confidence that your MegaStream flashlight is always prepared.

Get your Streamlight SL-B34 3500mAh battery now and enjoy reliable power wherever you go. Do not wait until your light fails—stay equipped and ready at all times.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51041324882

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4.5 ★★★★★
Based on 1844 reviews
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Product Reviews
C
Verified Purchase
Charlotte Blake
Louisville, US
★★★★★ 5
Long time waiting. Finally go it!
Color: Black/White/Black
Love it. Perfect size. Quality is good!! Worth the money. Light is bright. Able to change strap
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
B
Verified Purchase
Bruce Cheatham
Charlottesville, US
★★★★★ 5
Durability 💪
Color: Black/White/Black
Good work watch. I put it in mud, water and gravel. Keeps on ticking 👍
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
P
Verified Purchase
Phil Huffy
Lake Worth, US
★★★★★ 4
Quirky, small, and not for everybody
Color: Black/White/Black, Color: Black/White/Black
This is an attractive little watch, similar to the older Timex Expedition, but changes have been made. Like its earlier version, this is a small, light timepiece. The band is something different, with the case being held in place by an elastic insert sewn in. Pro - This watch stays put on the wrist, making it a good work watch. Con - pins will have to come out to remove band or change the battery. Another unique feature is the use of triangle slot retention screws on the back of the case, no doubt requiring a special screwdriver most folks probably don't have on hand. The band Velcro's into place, appears best for small or medium wrists, and stays where one puts it. In sum, this is a handy and attractive watch that is quite informal in appearance and will require some patience to perform battery changes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
H
Verified Purchase
Hans471
Birmingham, US
★★★★★ 5
Simple, easy to read, dependable, and affordable: all the important stuff!
Color: Black/White/Black
Its just a fine time piece for daily wear. Its light, its super easy to read both day and night. Its comfortable and it looks good on your arm. What more can you ask of a watch? If you want "fancy" go buy some high dollar metal case thing and pay three or four (or more) times what this watch cost. If you want to know what time it is and not spend a bunch of money, this is your baby. You can find cheaper watches, but you will not find a better watch at this price. I know, I have been wearing out watches for decades! My work is hard on watches. Things like using power tools, impact tools, hammers, welders, etc. These watches have never failed me and have lasted longer than watches costing far more. I got my first Timex watch nearly sixty years ago. I am still buying them as I have found nothing else that is more accurate or holds up under harsh conditions any better. You get what you pay for except with Timex. They give you MORE than you paid for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2020
R
Verified Purchase
Ruprecht
Grantham, US
★★★★★ 5
I like the nylon strap.
Color: Black/White/Black
Watch itself is fine - doesn't stand out as something spectacular but is great for what it is. Definitely waterproof to about 30 feet deep - I've tested it snorkeling. The best thing is the strap - this nylon strap is much more comfortable than usual watch straps. There are a lot of nylon straps out there -- I think I prefer this one more than most of the others. the Velcro allows infinite adjustment, unlike straps with holes like a belt. And the way they did the looping of the band around itself seems to work really well. Better than another velcro strap I had many years ago ("the band") which was similar but didn't loop around itself the same way. This one is better - quicker and easier to put on and more easily adjustable.
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Reviewed in the United States on August 1, 2025

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