EVE Energy is the highest tier manufacturer, on par with names such as Samsung, Sony or Panasonic. By sales volume, they truly are one of the biggest battery makers in the world. By purchasing EVE Ene more→rgy batteries, you can be assured that the battery will have a capacity, which is stated by the manufacturer. A 2500 mAh will have a capacity of 2450-2550 mAh.
Do not compromise on safety by buying unknow small brand's ' vape ' batteries, which advertise themselves as 3000-3500mAh capacity and 20A discharge current. This is hardly achieveable as even the best brands offer high discharge cells only up to 2500-3000mAh (Sony VTC4 and VTC6, Samsung 25R). EVE energy's best performance cell is this