Boost Your Creativity With Efficient Parallel ChargingWith the Dji Mavic 240W Power Adapter, the Mavic 4 Pro Parallel Charging Hub fully charges one battery in 51 minutes and can charge three batteries at the same time via the Mini Sdc port. The Parallel Charging Hub boosts efficiency by prioritizing the battery with the lowest charge. Once all three batteries reach the same charge level, it switches to parallel charging, fully charging all three batteries in just 90 minutes.By leveraging the batteries' stored power, the Parallel Charging Hub can also transform into a 100W power bank, providing a convenient way to fast-charge phones and laptops on location. Additionally, it features a power accumulation function, which allows you to transfer the remaining power of multiple low-power batteries into the battery with the highest remaining power.Time Comparison for Charging 3 Batteries Dji Mavic 4 Pro: Approx. 90 minutes Dji Air 3S: Approx. 180 minutes Dji Mavic 3 Pro: Approx. 210 minutesTime Comparison for Charging 1 Battery Dji Mavic 4 Pro: Approx. 51 minutes Dji Air 3S: Approx. 60 minutes Dji Mavic 3 Pro: Approx.