Description
The Vapcell G68 is a breakthrough 21700 lithium-ion cell that pushes capacity to the absolute limit. With an industry-leading 6800mAh nominal capacity and 24.48Wh of energy, it delivers significantly longer runtime than standard 4000-5000mAh 21700 cells, making it the ultimate choice for high-performance flashlights, power banks, and DIY battery packs where maximum endurance is the priority .
Engineered for reliable everyday performance, the G68 supports a 12.5A maximum continuous discharge (within the 0°C to 35°C temperature range) and features a low internal resistance of ≤24mΩ, ensuring stable output and efficient energy delivery . Its robust construction and ≥1000 cycle life (to 70% capacity) provide exceptional long-term value .
Important Temperature Note: The 12.5A discharge rating applies only when the cell temperature is between 0°C and 35°C. Outside this range, the maximum discharge current must be reduced: 6.8A for temperatures between -20°C to 0°C or 35°C to 45°C, and 3.4A for 45°C to 60°C . Always ensure adequate thermal management in your application.
Available in Flat Top, Button Top, Nickel Tab, Pre-wired, and Protected Top configurations, with 2, 4, 6, 8, and 10 pack options to suit your project needs.
Key Features
6800mAh Ultra-High Capacity: The highest capacity available in the 21700 format, delivering approximately 36% more energy than typical 5000mAh high-capacity cells . Perfect for applications where charging opportunities are limited.
12.5A Maximum Continuous Discharge: Provides sufficient power for most flashlights and portable electronics. Note the temperature-dependent derating (see parameters below).
Low Internal Resistance (≤24mΩ): Ensures efficient energy transfer and stable voltage under load, minimizing heat generation within the rated current range .
Long Cycle Life: Rated for ≥1000 cycles to 70% of initial capacity (at 0.5C charge / 1C discharge), offering excellent long-term value and reducing replacement frequency .
Multiple Terminal Options: Flat Top for standard spring-contact devices and spot-welding; Button Top (adds approximately 2mm in length) for devices requiring a raised positive terminal; Nickel Tab and Pre-wired for custom battery pack assembly; Protected Top for built-in overcharge/over-discharge protection .
Multiple Pack Options: Available in 2, 4, 6, 8, and 10 packs, ideal for power banks, multi-cell flashlight setups, or DIY projects.
Parameters
| Parameter | Specification |
|---|---|
| Model | Vapcell INR21700 G68 |
| Cell Type | INR21700 Rechargeable Lithium-Ion |
| Nominal Capacity | 6800mAh |
| Minimum Capacity | 6600mAh (at 0.2C discharge to 2.50V) |
| Nominal Voltage | 3.60V |
| Nominal Energy | 24.48Wh |
| Charge Cut-off Voltage | 4.20V |
| Discharge Cut-off Voltage | 2.50V |
| Standard Charge Current | 3.4A (0.5C) |
| Max Charge Current | 4.76A (15°C ≤ T < 45°C) |
| Standard Discharge Current | 6.8A (1C) |
| Max Continuous Discharge (0°C ≤ T < 35°C) | 12.5A |
| Max Discharge (-20°C ≤ T < 0°C or 35°C ≤ T < 45°C) | 6.8A |
| Max Discharge (45°C ≤ T < 60°C) | 3.4A |
| Internal Resistance | ≤24mΩ (AC 1kHz) |
| Cycle Life | ≥1000 cycles (to 70% capacity, 0.5C charge / 1C discharge) |
| Operating Temperature (Charge) | 0°C to 45°C |
| Operating Temperature (Discharge) | -20°C to 60°C |
| Dimensions | Approx. 21.4mm diameter x 70.6mm length |
| Weight | Approx. 75g |
| Top Type | Flat Top / Button Top / Nickel Tab / Pre-wired / Protected Top |
| Pack Quantity | 2, 4, 6, 8, 10 Pcs |
Applications
Recommended For:
High-Performance Flashlights & Searchlights: The 6800mAh capacity provides dramatically extended runtime on medium and high modes, ideal for camping, search and rescue, and professional inspection .
High-Capacity Power Banks: Build compact power banks with massive energy reserves. The 12.5A discharge (within temperature limits) supports standard USB-C PD charging protocols.
DIY Battery Packs: Suitable for projects where maximum energy density is the priority, such as portable power stations, solar storage, and backup power systems.
Portable Electronics & Devices: Reliable power for devices that draw less than 12.5A and benefit from extended runtime between charges.
Not Recommended For:
High-Drain Power Tools (>12.5A): This is a capacity-optimized cell, not a high-drain cell. For tools requiring sustained currents above 12.5A, choose dedicated high-drain cells like the Samsung 40T or Molicel P45B.
High-Power Vaping (Sub-Ohm/Mechanical Mods): These applications typically require 20-35A continuous. The G68 is not suitable for this use case.
18650-Only Devices: This is a 21700 cell (21.4mm x 70.6mm) and will not physically fit in 18650 compartments.
FAQ
Q1: What is the actual maximum continuous discharge of the G68?
A: The maximum continuous discharge is 12.5A, but only when the cell temperature is between 0°C and 35°C. At lower temperatures (-20°C to 0°C) or higher temperatures (35°C to 45°C), the limit drops to 6.8A. Above 45°C, it drops further to 3.4A. Always design your application with the appropriate temperature derating in mind .
Q2: Why is the capacity 6800mAh? Is this the highest available?
A: Yes, 6800mAh is currently among the highest capacities available in the 21700 format. This cell prioritizes maximum energy storage over extreme current output. If your device draws less than 12.5A and you want the longest possible runtime between charges, the G68 is an excellent choice .
Q3: What is the difference between the terminal options?
A: Flat Top is standard for spring-contact devices and spot-welding. Button Top has a raised positive terminal (adds approximately 2mm in length) for devices with recessed compartments . Nickel Tab and Pre-wired are for custom pack assembly. Protected Top includes a built-in protection circuit.
Q4: Can I use this battery for high-power flashlights?
A: Yes, for most flashlights. However, if your flashlight's turbo mode pulls more than 12.5A, you should choose a higher-drain cell instead. For medium and high modes that stay within the 12.5A limit, the G68's massive capacity will provide exceptionally long runtime.
Q5: Does this battery have a protection circuit?
A: The standard Flat Top, Button Top, Nickel Tab, and Pre-wired versions are unprotected bare cells. The Protected Top variant includes a built-in protection circuit. For multi-cell packs, always use an external BMS.
Q6: How should I store these cells?
A: Store at approximately 3.6V (40-50% charge) in a cool, dry place. Use non-conductive battery cases to prevent short circuits. Avoid storing fully charged or deeply discharged for extended periods.
Q7: How many batteries come in one pack?
A: This product is available in 2, 4, 6, 8, and 10 pack options. Please select your desired quantity from the dropdown menu before adding to cart.
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