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Is 6970mAh the rated capacity?
No. The nominal rating is 6800mAh and the minimum rating is 6600mAh. The 6970mAh figure is a measured result from the supplied 2A discharge test.
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Vapcell G68 INR21700 6800mAh 12.5A Li-ion Rechargeable Battery
Vapcell G68 INR21700 6800mAh 12.5A Li-ion Rechargeable Battery
WISHLIST
High-capacity 21700 lithium-ion cell designed for longer runtime in compatible flashlights and portable electronics.
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High-capacity 21700 cell
Vapcell G68 6800mAh INR21700 Li‑ion Battery
A high-energy 21700 cell engineered for extended runtime, with 24.48Wh nominal energy and up to 12.5A continuous discharge under the specified temperature conditions.
6800mAh nominal 3.6V nominal 24.48Wh 12.5A max. CDR* 21700 format
High capacity for longer runtime
With 6800mAh nominal capacity and 24.48Wh nominal energy, the G68 is designed for compatible devices where energy density and runtime matter.
Nominal capacity6800mAhMinimum capacity6600mAhNominal voltage3.60VNominal energy24.48Wh
Capacity + current
Balanced everyday output
The G68 combines a 6.8A standard discharge current with a maximum continuous discharge current of 12.5A at cell temperatures from 0°C to below 35°C. Current limits must be reduced outside that temperature range.
Its specified AC internal resistance is ≤24mΩ at 1kHz, supporting efficient delivery when the cell is used within all stated limits.
Discharge performance
The supplied test chart shows delivered capacity at four constant-current loads, using a 4.203V starting voltage and a 2.500V cut-off on an EBC-A40L tester.
Test result highlight: 6602mAh was recorded at 12.5A, while 6970mAh was recorded at 2A. These are test results, not replacement ratings for the 6800mAh nominal specification.
Correct charging
4.20V CC/CV charging
- Standard charge current: 3.4A (0.5C).
- Charge by constant current, then hold 4.20V constant voltage.
- Charge termination current: 136mA (0.02C).
- Use only a compatible charger designed for 4.2V lithium-ion cells.
Temperature-dependent current limits
Cell temperature changes the permitted current. Always follow the current limit that matches the actual cell temperature.
Maximum charge current
0°C ≤ T < 5°C 0.68A 5°C ≤ T < 15°C 3.4A 15°C ≤ T < 45°C 4.76A Maximum discharge current
−20°C ≤ T < 0°C 6.8A 0°C ≤ T < 35°C 12.5A 35°C ≤ T < 45°C 6.8A 45°C ≤ T < 60°C 3.4A 
Technical specifications
Ratings below are transcribed from the supplied nominal specification sheet. Observe every voltage, current and temperature limit.
Model Vapcell G68 Cell type INR21700 rechargeable lithium-ion cell Nominal capacity 6800mAh Minimum capacity 6600mAh at 0.2C discharge to 2.50V Nominal voltage 3.60V Nominal energy 24.48Wh Internal resistance ≤24mΩ (AC impedance, 1kHz) Charge cut-off voltage 4.20V Discharge cut-off voltage 2.50V Charge cut-off current 136mA (0.02C) Standard charge current 3.4A (0.5C) Standard discharge current 6.8A (1C) Maximum continuous discharge Up to 12.5A (1.85C), subject to cell temperature Cycle-life test 1,000 cycles to ≥70% remaining capacity at 0.5C charge / 1C discharge under specified conditions Working temperature Charge: 0°C to 45°C; discharge: −20°C to 60°C Capacity test charge 0.5C (3.4A) CC/CV to 4.20V, 0.02C (136mA) termination 
Frequently asked questions
Quick answers for buyers comparing capacity, output and compatibility.
Can the cell discharge at 12.5A continuously?
Only within the specified temperature range. The 12.5A limit applies from 0°C to below 35°C; lower current limits apply when the cell is colder or hotter.
What charger should I use?
Use a charger made for 4.2V lithium-ion cells. The specified charge method is CC/CV, with a 4.20V limit and 136mA termination current.
Will it fit every device that uses 21700 cells?
Not necessarily. Verify physical fit, terminal style, polarity, current requirement and device protection before purchase or installation.
Important safety notice: Never carry or store loose cells with metal objects. Do not short-circuit, reverse, overcharge, over-discharge, puncture, crush, disassemble, incinerate or expose the cell to water. Do not use a cell with a damaged wrap or insulator ring. If you are not familiar with bare lithium-ion cells, use only manufacturer-approved battery packs.
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