When it comes to appliances like wall clocks, batteries are normally needed to power them up for some time. But for the Eco Clock, it makes use of discarded batteries and aims to drain up energy up to the last drop to make sure that they are totally out of juice.
The Eco Clock from Bor-Ru Huang comes with 12 slots, each made to accommodate discarded batteries that will collectively power the timepiece. The design also includes a really fun feature where the different levels of juice in each battery are represented by color.
The beauty lies on helping maximize battery life and of course limiting e-waste as much as possible. On the home improvement end, the batteries to be used can offer either a uniform design or a wacky variant design, depending on the type of batteries you use to place in one of those 12 slots it comes with.