If the maximum power of a cell has the highest priority, you are best served with the Hohmech ALONE 18650.
The capacity strongest 18650 battery with constant discharge current of max.19.6A is designed for e-cig and allows operation up to max. 56W.

The HohmTech battery reaches a real 3309mAh at 15A discharge current.

The battery is suitable for all those who have to or want to get by with a battery for several hours. Also suitable for torch use.
However, the cell, which is optimised for performance, has certain disadvantages. The cycle stability of the battery is limited, so the use of the cell for commercial applications such as battery packs for e-bikes, power tools etc. is not suitable.

Technical data of the HohmTech ALONE 18650 rechargeable battery:

HohmTech's precisely stated key figures have become a trademark. The batteries achieved high popularity and breakthrough on the market in the USA, where the company's headquarters are also located. In a survey conducted by the most respected E-zig. Forum on popularity and confidence in the market, HohmTech batteries took first place.

Information on the safety of Hohm Tech batteries:

Hohmtech works with a number of industry companies, certification bodies and industry regulators to ensure that customers are consistently provided safe and reliable high performance cells that meet all safety and transportation regulations.

Comparisons, discharge curves and test runs:

https://www.e-cigarette-forum.com "When new, it is the most powerful 18650 over 3000mAh at low power levels."

Data sheets for the HΩ ALONE:

HΩ ALONE 18650 (Datasheet)

IEC (62133) (international standards organisation).

UN (UN38.3) (summary)

UN (UN38.3) (Report)

MSDS (Safety Data Sheet)

CE (European Conformity)

Safety instructions:

Lithium cells may only be operated with protective electronics!
Please note that lithium cells may only be used by authorised specialist personnel.
Incorrect handling or short-circuiting may result in fire or explosion.

Further characteristics:

Lithium-ion batteries are thermally stable and are not subject to memory effect.
They work on the basis of lithium and are characterised by a high energy density.

Scope of delivery:

1x HΩ ALONE - 3309mAh, lithium-ion rechargeable battery.

Notes:

Charging lithium-ion batteries requires a special charger that charges the batteries according to a special charging procedure. (CCCV = constant current, constant voltage.) The batteries must not be charged above a voltage of 4.2 volts, otherwise there is a risk of fire and explosion. It is advantageous to charge the batteries only up to approx. 4.1 volts, as this significantly increases the service life or the number of charging cycles (possibly up to double). Only lithium-ion chargers may be used for charging. However, the cheap chargers sometimes have the disadvantage that they do not switch off safely at the end of the charging process, but continue to charge the batteries with a small charging current, which can be dangerous.

Furthermore, rechargeable batteries and batteries do not belong in household waste! Please dispose of them as prescribed by law at the municipal collection points or in the [usually green] containers provided by retailers.