#Rechargeable c batteries plus#

This voltage drops abruptly after 8 hours to stabilize at ~1.1V for half an hour before the battery dies, and then turns on again very briefly 2 hours later. We can see that the battery provides a stable voltage of 1.45V while supplying about 145mA. We discharged them with two 10Ω resistances while we displayed the values measured by the two Yocto-Watt in Yocto-Visualization.

#Rechargeable c batteries plus#

We tested in parallel one of the USB-C batteries, which we call battery A, just out of the charger, with a Duracell PLUS MN1500 alkaline battery. This configuration enables the experiment to live its life quietly in its own corner. The two Yocto-Watt are driven by a YoctoHub-Ethernet powered by a PoE Ethernet cable. To see how these batteries behave, we built a small test bench with two Yocto-Watt batteries, each connected to an AA battery holder and a large power resistance. Therefore, in addition to a charger, the battery also contains a regulator to lower this voltage to 1.5V.

They are based on lithium-ion chemistry, which means that the cell inside has a voltage of around 3.2V. These batteries look like ordinary AA batteries except for the USB-C receptacle on the positive pole side. Rechargeable batteries with built-in charger After some research, we realized that it is a generic product made in Asia and sold under a multitude of brand names. We chose batteries sold in Switzerland by a German company but their real country of origin is not mentioned anywhere. We couldn't resist the temptation to buy a pack, just to check if an AA battery with an integrated charger really works. While shopping at one of our usual suppliers, we came across an intriguing gadget: AA batteries, with an integrated USB-C charging port and which promise a capacity of 1600mAh for a 1.5V voltage.