Battery

A Koch brothers-funded group says that Tesla's Powerwall battery-storage system will take decades to store enough power to pay for itself.

Volkswagen is developing an architecture for future electric vehicles that will use flat batteries. Up to now VW has shaped packs to fit inside existing cars.

A Vermont utility, Green Mountain Power, is offering Tesla Powerwalls to customers starting in January.

Tesla CEO Elon Musk says that the EV future looks bright as battery-production costs continue to fall.

Companies collaborate on light-rail system that charges without any overhead wires.

Belenos Clean Power is said to make lighter, cheaper batteries, which is a good thing following this diesel scandal.

EV advocate says gas-powered vehicles depreciate a lot faster than plug-in vehicle batteries.

One 2013 Model S owner's battery has issues that dropped capacity quicker than advertised.

Rather than its usual partnership with Panasonic, Tesla is using cells from LG Chem for the upgrades to the Roadster's battery pack.

GM says li-ion battery-pack costs could fall to $100/kWh by the end of the decade.

Daimler CEO says another partnership with his German competitors is possible, this time on electric vehicle batteries.

Formula E electric race cars' batteries will get a boost for second season.

Tesla CEO Elon Musk says that in order to make the lower-cost Model 3 electric sedan it needs a "fully operational" Gigafactory.

Panasonic currently holds the highest market share in the EV battery industry, but LG Chem is rapidly making deals with automakers that could soon give it that crown.

Tesla Motors technology chief JB Straubel forecasts more electric-vehicle popularity from declining costs.

The class-action lawsuit over battery packs in 2011 and 2012 Nissan Leaf EVs in hot climates has been settled. The gist: new, not replacement, batteries.

Volkswagen chairman Martin Winterkorn says the company is prepping a battery with a 186-mile range, which is more than double the current e-Golf. Although, it's less than the projections of potential competitors like the Tesla Model 3, Chevrolet Bolt, and the rumored upcoming Nissan Leaf update.

Jaguar Land Rover CEO Ralf Speth says battery technology will improve, but it's not there yet - and that's why customers aren't ready for electric vehicles.

Nissan will work with the Silicon Valley company Sumitomo to develop stationary-energy-storage set-ups that use old Leaf batteries.

General Motors is making an announcement about the secondary use of batteries from electric vehicles at the 2015 Advanced Automotive Battery Conference on June 16.