This battery is rated at 3000 mAh. This rating is an abbreviation for milliampere hours and is meant to convey the overall capacity of the battery. The higher the mAh, the longer the battery life. Vapers love high mAh in their batteries because they can vape longer without needing to recharge and also reap a greater overall lifespan from their battery.
The Wulf Maxx 18650 40 amp 3000 mAh Battery is an IMR, or Lithium manganese, battery. IMR batteries are universally considered to be the safest battery produced for vaporizers. The chemistry used in the manufacture of these batteries is considered to be safer in comparison to ICR batteries. Because they are composed of safer chemicals, IMR batteries do not mandate the use of protected circuitry and are less likely to vent as a result of battery failure.
These batteries have a high rate of discharge, another important element when vaping at low resistances. Sub ohm vaping has its own particular safety concerns. The lower the resistance, the more strain is placed on the battery. For this reason, it is important that vapers only purchase branded batteries from companies and suppliers that they can trust. Wulf Mods insists on a strict process of quality controls to ensure the safe function of every battery they approve for market. When you buy a generic battery, you run the risk that inferior construction could pose safety risks.