
Ultrafire 18650 2500mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk (ULTRAFIRE-18650-2500-PTD)
- Size: 18650
- Voltage: 3.7
- Rechargeable: Yes
- Chemistry: Li-Ion
- Capacity (mAh): 2500
- Terminal Type: Button Top
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Description
Ultrafire 18650 Protected Rechargeable Lithium Battery
Detailed Description:
Protected 18650 2500 mAh rechargeable 3.7 volt battery - charge with the Ultrafire Multi-Battery charger.
The advantage of this cell is that it features a button top making it particularly compatible with many flashlight applications.
Rechargeable Lithium batteries are rapidly becoming a very economical way to lower the operating costs of Lithium-Powered flashlights. We offer a number of different options in order to meet any rechargeable needs. These are Protected batteries.
These fully protected cells simplify usage with their integrated PCB. Perfect for your single cell application these cells are not for pack building as doing so will defeat the PCB protection which is matched to the correct voltage on a single cell. If you are building a pack please choose one of our other cells and the appropriate PCB.
Features and Benefits:
- Unique and New! With integrated PCB Protection!
- Lithium Ion 18650 cylindrical rechargeable batteries
- Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V.
- Unique PCB design and patent pending.
- Higher energy density and lower weight than other types rechargeable batteries
- Manufactured under ISO9001-2000 to assure quality
- Battery tested based on International Electrotechnical Commission (IEC) standard to ensure capacity, quality and life time
- Lighting or other device needing 3.7V power
- Building portable power device needing high energy density and low weight
Product Specifications:
- Capacity: Nominal: 2500 mAh, Minimum: 2250 mAh
- Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V. UNIQUE INTERNAL PCB!
- Dimensions:
- Diameter 18.3+/-0.5 mm
- Height 66.5+/- 0.5mm
- Weight (Typical) Approx. 46 g
- Nominal Voltage: Average 3.7V
- Cut-off Voltage: 2.5V
- Internal Impedance: less or equal to 180 milliohm (with PTC)
- Cycle Performance: 90% of initial capacity at 400 cycles
- Cycle life: 500 cycles
- Charge: Current = 0.5C mA Voltage = 4.2 V End Current = 0.01 mA
- Discharge: Current = 0.5C mA End Voltage = 3.0V
Item Details
| Brand | UltraFire |
| SKU | ULTRAFIRE-18650-2500-PTD |
| MPN | ULTRAFIRE-18650-2500-PTD |
| Size | 18650 |
| Voltage | 3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 2500 |
| Chemistry | Li-Ion |
| Sub-Chemistry | LiCoO2 ICR |
| Shelf Life | 3 Years |
| Packaging | Bulk |
| QTY Per Package | 1 |
| California Residents | see Prop 65 WARNINGS |
Specifications
| Size | 18650 |
| Voltage | 3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 2500 |
| Terminal Type | Button Top |
| Protected | true |
Unit Dimensions
Additional Details
| Packaging | Bulk |
| 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
- 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.
- 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
- 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
- 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
- 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
- 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
- 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



