Tesla Motors has introduced a new battery pack for the performance versions of its Model S and X models, which will expand the scope and mean faster acceleration.
Elon Musk, chief executive of the electric vehicle maker, praised the upgraded battery as a "far-reaching milestone ".
He said that the chemical composition of the battery is the same, but the reconfigured product stores more energy in the same space.
Tesla, released a bigger one this month-than-
Is expected to lose money, will add a new car in its sports seriesup.
Musk claims the new 100-
KWh battery pack means high
The final version of this model S, called P100D, will be the fastest-producing car in the world. It will do 0-60mph in 2. 5 seconds.
There are faster cars in the market, but the number is limited, he said.
While Tesla's target is the mass market, it still has to run cars, he said.
"These are very deep milestones and I think it will help convince people around the world that electricity is the future," he said in a conference call with reporters . ".
The new battery extends the performance range of the new Model S to 300 miles (482 kilometers) away.
Tesla says it is about 8 km miles (about 290 miles ).
Musk says drivers can travel from San Francisco to Los Angeles when the weather is cool.
Nearly 400 miles by car-
No charge.
In May, Tesla said it is stepping up its upcoming Model 3 production plan --
Market car and will build 500,000
Electric vehicles in 2018, two years ahead of schedule.
Musk said the upgraded S and X cars will help fund the more affordable Model 3 that is still being developed.
Performance versions of S and X without new batteries are currently $108,000 and $115,500, respectively.
But the company also warned that investment would also increase.
Earlier this year, Tesla had a fatal car accident in Florida, involving its driving behavior, and the US security regulator is investigating --
Called the auxiliary function of automatic driving.
Musk said the software update for the feature was about to be completed, adding that it would lead to "substantial improvements in car autonomy ".