Description
Surefire 18650 Micro USB Lithium-Ion Rechargeable Battery offers a practical solution for powering your devices. With a capacity of 3500 mAh, it ensures extended runtime, making it ideal for high-drain applications like LED flashlights. The built-in Micro USB charging capability allows you to recharge the battery using any standard USB power source, including wall chargers, laptops, and power banks. This versatility means you can keep it charged wherever you are, eliminating the need for a separate charging cradle.
LED indicators provide real-time feedback on charging status, with a red light showing when the battery is charging and green indicating a full charge. With a discharge rate of 8-10A, this battery is designed to handle demanding devices, ensuring reliability when you need power most. Whether you're in the field or at home, the Surefire 18650 battery is engineered for performance and convenience.
Features – Key Benefits Bullets
- HIGH CAPACITY for extended runtime, ensuring your devices stay powered longer.
- MICRO-USB CHARGING allows for convenient charging from various USB power sources.
- LED INDICATORS provide clear charging status, so you know when your battery is ready.
- HIGH DISCHARGE RATE of 8-10A supports performance in high-drain devices.
- VERSATILITY in charging eliminates the need for a separate cradle, simplifying use.
- DURABLE DESIGN ensures reliability and performance across various applications.
- COMPATIBILITY with a range of devices, including flashlights and portable electronics.
- LIGHTWEIGHT construction makes it easy to carry for outdoor and emergency use.
Technical Specifications Table
| Specification | Details |
|---|---|
| Battery Type | 18650 Lithium-Ion |
| Voltage | 3.6V |
| Capacity | 3500 mAh |
| Discharge Rate | 8-10A |
| Charging Method | Micro USB |
| Dimensions | Length: 65 mm; Diameter: 18 mm |
| Weight | 45 g |
What's in the Box?
- 1 x Surefire 18650 Lithium-Ion Rechargeable Battery
- 1 x Micro USB to USB charging cable
Customer Reviews
"This battery lasts much longer than others I've tried. The Micro USB charging is a game changer!"
"I love how I can charge it from my laptop. Reliable performance in my flashlight."
"Great capacity and easy to use. LED indicators are super helpful!"
FAQ
How long does it take to charge the Surefire 18650 battery? Charging time can vary based on the power source used. Typically, it takes about 4-6 hours to fully charge from a standard USB port. Using a higher-output charger may reduce charging time.
Can I use the Surefire 18650 battery in any device? This battery is compatible with devices designed to accept 18650 lithium-ion batteries. Always check your device specifications to ensure compatibility for optimal performance.
Is it safe to leave the battery charging overnight? Yes, the built-in LED indicators help prevent overcharging. Once fully charged, the battery will not draw power, making it safe to leave plugged in.
Similar Models
If you're exploring high-performance batteries, consider the Surefire 123A Lithium Battery for compact devices or the Surefire 18350 for smaller applications. Browse our full collection for additional options that meet your power needs.
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Optics Knowledge Center
Understanding Rifle Scope Basics
Magnification
Magnification refers to how much larger an object appears through the scope compared to the naked eye. Fixed power scopes have one magnification setting, while variable power scopes offer a range (e.g., 3-9x).
Objective Lens
The objective lens is the front lens that gathers light. Larger objective lenses (measured in mm) gather more light, providing brighter images in low-light conditions but add weight and require higher mounting.
Reticle
The reticle (crosshair) is the aiming point inside the scope. Modern scopes offer various reticle designs, from simple duplex crosshairs to complex ballistic reticles with holdover points for different distances.
Adjustments
Rifle scopes have turrets for windage (horizontal) and elevation (vertical) adjustments. These are measured in MOA (minutes of angle) or MRAD (milliradians) and allow precise aiming adjustments.
Proper Scope Mounting Guide
Select the Right Rings & Base
Choose rings that match your scope's tube diameter (typically 1", 30mm, or 34mm). Select a base compatible with your rifle's receiver. For heavy-recoiling rifles, opt for stronger mounts.
Install the Base
Clean the receiver and base thoroughly. Apply a small amount of blue Loctite to the screws. Attach the base to the receiver and torque the screws to manufacturer specifications.
Attach the Rings
Attach the bottom halves of the rings to the base. Place the scope in the rings and loosely attach the top halves. Don't fully tighten yet.
Set Eye Relief & Level
Position the scope for proper eye relief (3-4 inches) in your normal shooting position. Ensure the reticle is level using a scope leveling tool. Once positioned correctly, tighten the rings evenly in a cross-pattern.
Scope Zeroing Tips
Start Close
Begin zeroing at a shorter distance (25-50 yards) to ensure you're on paper before moving to your desired zero distance (typically 100 yards).
Use a Stable Rest
Always zero your rifle from a stable shooting position using a bench rest, sandbags, or a shooting rest to eliminate as much human error as possible.
Fire Groups
Fire 3-shot groups before making adjustments. This provides a more accurate representation of where your rifle is shooting than single shots.
Make Deliberate Adjustments
Know your scope's adjustment values (typically 1/4 MOA per click). If your group is 2 inches low at 100 yards, you'll need to adjust up 8 clicks (for a 1/4 MOA scope).
Confirm Your Zero
After making adjustments, fire another group to confirm your zero. Repeat the process until your point of impact matches your point of aim.
Document Your Settings
Once zeroed, record your settings including distance, ammunition used, and environmental conditions for future reference.
Optics Maintenance & Care
Cleaning Lenses
- Start by blowing or brushing away loose particles
- Use a lens pen or microfiber cloth for fingerprints
- For stubborn dirt, use lens cleaning solution (never household cleaners)
- Clean with gentle circular motions from center outward
Protecting Your Optics
- Always use lens caps when not in use
- Store in a dry place with silica gel packets
- Avoid extreme temperature changes
- Use a quality scope cover in harsh conditions
Regular Maintenance
- Check and tighten mount screws periodically
- Inspect O-rings and seals for damage
- Verify zero after rough handling
- Clean the exterior with a damp cloth
What to Avoid
- Never use fingers to touch lenses
- Avoid paper products (tissues, paper towels) on lenses
- Don't use acetone, alcohol, or household cleaners
- Never disassemble your scope (voids warranty)