For those willing to put some elbow grease into it, there is an almost unlimited supply of 18650 lithium ion batteries around for cheap (or free) just waiting to be put into a battery pack of some ...

Large, high-voltage rechargeable battery systems are now common sources of power in applications ranging from electric vehicles to power grid load leveling systems. These large battery stacks are ...

Typically, the individual cells in a battery have somewhat different capacities and may be at different levels of state of charge (SOC). Without balancing, the cell of smallest capacity is a “weak ...

The E-Ducato's battery consists of three or five large battery modules (respectively 47 kWh or 79 kWh total), which are connected in parallel. It's not a typical approach, as usually there are many ...

The Chinese manufacturer has upgraded its commercial application battery with a dissipative balancing technology that, it is claimed, will make the storage system suitable for different load ...

There are still a lot of hand-held tools in use with Ni-Cd or Ni-MH batteries. The simple charger has no switch-off criteria, and you need to measure and adjust the charge time, else you will badly ...

We’re willing to bet most Hackaday readers have accidentally spot welded a few electrical contacts together over the years, complete with the surge of adrenaline that comes with the unexpected pops ...

1. The Chevy Volt HEV contains a 192-cell Li-ion battery housed in a 5.5-foot-long T structure that weighs 183 kg. It’s manufactured by LG Chem and has a capacity of 18.4 kWh. (Courtesy of General ...