Nowadays, many pod mod kits are using Buck Chopper to adjust the wattage, the maximum output is totally depending on the power of the battery. If the voltage of the battery is only 3.7v, there is no way to boost the voltage to 4.2v, or 40w for wattage. However, Autopod50 utilizes Buck/Boost DC/DC Chopper, the device supports either buck or boost the wattage so the output is exactly the same as the screen shows. You can vape at real 50W with only 25% of the battery power left.
More details about Freemax Autopod50 double mesh coil pod mod kit here>> https://www.freemaxvape.com/autopod50-pod-mod-kit.