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- Size: 18650
- Voltage: 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
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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 |
| MPN | U18-34 |
| UPC | 6925961901569 |
| Size | 18650 |
| Voltage | 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 | 3.7 |
| 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
- Reliable lithium chemistry with a 10 year shelf life
- Regarded as one of the highest quality CR123A batteries on the market
- Used in LED flashlights, alarm systems, ranger finders and more
- Cells are lightweight, durable and ideal for long term storage
- Jacket style may vary
- 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
- 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
- Four-channels saves time by charging multiple batteries at once.
- Capable of charging multiple chemistries by automatic battery detection.
- LCD display reveals the charging progress, battery type, voltage, and charging current.
- Automatic power-off function cuts off the current when charging is complete.
- Extremely compact and powerful EDC
- Max output of 3,000 lumens with a max throw of 229 meters
- Dual fuel and available with extender for use with a 26650
- Equipped with 4 x CREE XPG3 LEDs for maximum illumination
- 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
- 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
- Upgraded to output up to 3,100 lumens with a 1,000ft throw for optimal spotting!
- Offers fast, direct USB-C recharging from outlets, power banks, and more
- Ultra-slim design provides an easy-to-hold, simple EDC lighting solution
- OLED screen monitors performance, including charge level, brightness & beyond
- Pre-shrink wrapped Panasonic CR123A batteries great for OEM use & more
- 1550mAh high capacity keeps lights, alarms & more running longer
- Lithium cells with stable 3V output and strong discharge performance
- Storage life of up to 10 years ensures backups remain ready for use













