The Jupio x Pr1me Gear Triple-Charge does a lot more than its name suggests. Yes, it can charge three camera batteries simultaneously - but its designed in such as a way that it can store your spares when you go on location. Each charging bay has an LED indicator which is turned on with a press of a button to see which of your spares still has charge.
Designed by the Swedish YouTuber Peter Lingdren, the other ingenious feature of this interesting accessory, is that it also has slots to store your memory cards. There are eight different slots in total - three for SD format cards, three for CFexpress Type B cards, and two for microSD cards.