









MecArmy U18-34 18650 3400mAh 3.7V Lithium Ion (Li-ion) Button Top Battery with Micro USB Charging Port
- Rechargeable 18650 battery for flashlights & more
- 3400mAh long-runtime capacity
- Built-in Micro-USB charging port
- Protected circuit for safety
- Size: 18650
- Voltage: 3.6/3.7
- Rechargeable: Yes
- Chemistry: Li-Ion
- Capacity (mAh): 3400
- Terminal Type: Button Top
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Description
MecArmy U18 3400mAh 18650 Battery
Micro USB Rechargeable
The MecArmy U18 3400mAh 18650 battery is capable of power high-drain devices, including your LED flashlight. This rechargeable power source has a lithium-ion chemistry, which has become the go-to for powering portable electronics. The U18 3400mAh 18650 battery is equipped with a micro USB charge port, which makes it incredibly easy to recharge. Instead of inserting the battery into a separate charger, which typically requires AC power, simply connect the U18 to a USB power source, such as a computer. This makes it even easier to travel with your LED flashlights as you no longer have to carry around a bulky charger to keep them powered. When plugged in, an LED light will glow red when charging and green when completely charged. What's great about the MecArmy U18 18650 battery is that it is also compatible with standard chargers, if you'd prefer to re-power the cell this way. This 3400mAh 18650 battery is a suitable power source for all of your powerful LED flashlights.
Features:
- Built-in micro USB charging port eliminates the need for a separate battery charger (USB cable sold separately)
- Compatible with standard Li-ion battery chargers for added convenience
- LED status indicator notifies you when charging is complete
- Internal Panasonic cell is from a reliable brand
Specifications:
- Battery Size: 18650
- Battery Chemistry: Lithium-ion
- Nominal Voltage: 3.7V
- Nominal Capacity: 3400mAh
- Working Current Consumption: 12UA (max)
- Charging Time: 7 hours
- Estimated Charge Cycles: 500 cycles
- Discharge Cut-off Voltage: 2.75V
-
Dimensions:
- Length - 2.779" (70.6 mm)
- Diameter - 0.713" (18 mm)
- Weight: 1.418 oz. ( g)
Item Details
| Brand | MecArmy |
| SKU | MEC-ARMY-U18-34 |
| UPC | 6925961901569 |
| Size | 18650 |
| Voltage | 3.6/3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 3400 |
| Chemistry | Li-Ion |
| Sub-Chemistry | LiCoO2 ICR |
| Shelf Life | 3 Years |
| Packaging | Retail Packaging |
| QTY Per Package | 1 |
| California Residents | see Prop 65 WARNINGS |
Specifications
| Size | 18650 |
| Voltage | 3.6/3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 3400 |
| Watt Hours (wH) | 12.6 |
| Terminal Type | Button Top |
| Protected | true |
| Integrated Charge Port | Yes |
| Equivalent Types | 168A, 18650, 19670, Protected 18650, Unprotected 18650 |
Unit Dimensions
| Length | 2.779 in (71 mm) |
| Diameter | 0.713 in (18 mm) |
| Weight | 1.418 oz (40 g) |
Packaging/Shipping Dimensions
| Length | 4.79 in |
| Width | 2.35 in |
| Height | 0.38 in |
| Shipping Weight | 0.14 lb |
Additional Details
| Packaging | Retail Packaging |
| Warranty | Battery Junction Warranty |
| Return Policy | Return Policy |
Bright Buys
- Trusted and reliable; consistently rated as a top customer pick for LED flashlights
- Superior 1,600mAh capacity means longer runtimes and less frequent battery changes
- Optimized for both high and low drain devices
- State-of-the-art automated production lines ensure the highest quality and safety protections
- Ideal for low-drain applications that require a primary battery to provide constant power
- 10-year shelf life - stock up for emergencies!
- The best choice for consistent power, great in low-drain devices like remotes
- Safe and reliable - capable of performing in high or low temperatures
- 225mAh capacity drives long runtimes for watches and electronics
- CR2032 coin cells packed with 3V of power
- Convenient 6-piece retail card provides backup batteries
- Easily replaceable primary lithium cells
- Top recommended battery for Apple AirTags
- 11-in-1 card sized tool fits in your wallet or on a keychain!
- Packed with handy tools including a screwdriver & 7 wrench settings
- Serrated saw and straight-edge knife for quick cutting jobs
- Can + bottle openers for campsite meals or end-of-shift relaxation
- Independent 4-slot charging for different batteries
- Touch screen control provides user-friendly operation
- 4 working modes for charging, testing batteries, and more
- Compatible with Li-ion, Ni-Cd, & NiMH batteries
- Quick Charge 3.0 technology enables fast and efficient device charging
- USB compatibility supports a wide range of electronic devices
- Compact adapter design makes it ideal for travel and everyday use
- Intelligent charging management helps optimize power delivery
- Universal cable to consolidate chargers for work, home, or EDC use
- USB-C, Micro-USB, and Lightning plugs for various electronics
- USB-C input with USB-A adapter for use with any USB power source
- 3.93ft long cord, allowing you to use your phone during recharging!
- Premium materials for durability and fast charge speeds
- Fits flashlights w/ diameter of 24-32mm & length of 130mm-170mm
- Great for EDCs, tactical lights, slim lights, & more!
- Durable and flexible nylon material keeps lights secure
- 33g weight won't drag you down!
- Portable powerhouse - emits a 1148ft beam from a 3.4in light!
- Strobe and SOS modes accessible for emergencies
- Dual-fuel power - swap in a CR123A when needed
- Strong magnetic tailcap for hands-free repair jobs
- USB-C port offers seamless recharging from anywhere!
- 3,000 lumens and a 250-meter throw - fierce illumination to light up your backyard
- Multiple output modes are accessible via easy side switch operation
- Strobe, SOS, and beacon modes offer distinct signaling capability
- High-capacity battery supports the light with a maximum 227-hour runtime


