N50 5000mAh 21700 INR Battery with a 15A max continuous discharge current from Vapcell. This is the best option for dual 21700 regulated devices that are intended to be run under or around 70 watts or a single battery regulated device under 50watts.  

The reason this is the best choice using a regulated device at lower than 70w is the 15amp rating. This makes the battery last longer at a lower drain giving it the 5000mAh capacity

If the battery is intended for more intense purposes we recommend the P42 or 4200mah 21700 due to its 30amp rating it is better for mechanical devices that are intended for low resistances or very hight drain.

N50 5000mAh Battery Specs:

• Type: Flat top INR chemistry
• Dimensions: 21.1±0.2 x 70.1±0.3mm
• Capacity: 5000mAh (0.2C discharge)
• Max Continuous Discharge Current: 15A
• End-of-charge voltage: 4.20V
• End-of-discharge Voltage: 2.5V
• Weight: 72g 
• Internal resistance: 16mΩ ( Appr) （AC 1kHz）
• Standard Charge: 1.5A,CCCV 100mA cut-off
• Quick Charge Current: 2.5A

N50 21700 Contents:

1 x Vapcell N50 21700 Battery in safety tube.

Important Lithium Battery information:

Lithium-Ion batteries should never be kept loose in your pocket or purse. Always use the case provided.

• Lithium-Ion cells should be charged on a dedicated charger rated specifically for Lithium-Ion cells. Our selection can be found here.
• Never leave a battery unattended whilst charging. 
• Keep away from animals and children.
• Wraps and insulators should be periodically inspected for tears or damage. If a battery has a damaged wrap, it should be repaired or disposed of immediately.
• Batteries usually have a cycle life of between 200-500 cycles (varies with manufacturer) before noticeable capacity drop off. Batteries should be recycled at this time.
• Do not crush, incinerate or modify.
• Only use within manufacturers specification.

Battery Safety: 

Please make sure your external cells have perfectly intact wraps on them If they have any of the metal showing under the wrap or the insulator on top please either re wrap or buy new cells PS This is not to scare you If you have any doubts about your charging routine just ask. Batteries get warm when they charge but if they are red hot then its time to look into it