One of the biggest concerns for owners of electric cars is that their battery could run out at any moment , leaving them stranded with no recharging station nearby . So-called 'range anxiety ' is a fear that has apparently plagued some owners of Tesla ’ s Model S vehicle , but now CEO Elon Musk has revealed he has a solution . In a tweet he said he would reveal a way to tackle the issue at a conference on Thursday , and while no further details are known , it seems the smart money may be on either navigation software that shows the best route to a charging station or an update that boosts the car 's battery power . California-based Tesla is to announce a software update on Friday . Elon Musk revealed it would be for the 'entire Model S fleet ' in a tweet . This suggests it may be a trick to boost the battery power of the car ( Model S pictured in a promotional shot ) . Others have suggested it could be new turn by turn navigation software . In the Tweet Musk said : ‘ Tesla press conf at 9am [ Pacific Time , 4pm GMT ] on Thurs . ‘ About to end range anxiety … via OTA software update . ‘ Affects entire Model S fleet. ’ Running low on fuel and making a desperate search for the nearest station could soon be a thing of the past . Earlier this month Ford unveiled its latest app that not only shows how far you can travel on the power you have remaining , it bases its predictions on your unique driving style . The MyFord Mobile also lets drivers remotely access their vehicles meaning they can set the cabin temperature on a cold morning before they leave their house . The app was announced at Mobile World Congress in Barcelona and currently works with a selection of Ford ’ s electric and hybrid cars . That Musk says this is a software update seemingly rules out one theory , namely more of Tesla ’ s ‘ supercharger ’ stations being added . However , the fact that it affects the entire Model S fleet may also pour cold water on the ‘ turn by turn navigation ’ theory . This is because not every car has the ability to have such a feature , so unless Musk is planning to upgrade those that are not with new hardware , this may seem unlikely . Several outlets have been reporting that the answer may lie in some trickery with the car ’ s software that can boost the battery power . In a survey for Consumer Reports in 2012 , 77 per cent of respondents said limited range was their biggest concern with electric cars . The official range of the Model S at the moment is up to 310 miles ( 500km ) , which is apparently not enough to quell range anxiety for some drivers . That Musk says in his tweet ( shown ) this is a software update seemingly rules out one theory , namely more of Tesla ’ s ‘ supercharger ’ stations being added . However , the fact that it affects the entire Model S fleet may also pour cold water on the ‘ turn by turn navigation ’ theory - as not all the cars have this ability . Only certain models of Tesla 's Model S car have the ability to charge their car quickly at the company 's supercharger stations , which Tesla lets owners of the Model S use for free . However , the stations are quite few and far between , especially in the UK , at the moment . CNN noted that , last year , Tesla upgraded its Tesla Roadster electric car , increasing its range from 245 to 400 miles ( 395 to 645km ) on a single charge . This was via a lithium battery pack upgrade and , at the time , Musk tellingly tweeted : ‘ Should mention that a battery pack upgrade is not coming soon for the Model S , but it obviously *will* happen long-term. ’ Musk has since deleted that tweet , though - perhaps in anticipation of this latest announcement . ‘ Musk said that all Model S cars will get the update - if so , that points to battery optimisations , a power-saving mode or smarter navigation , ' added Engadget . Software updates to the Model S aren ’ t unprecedented , either ; in January , an update increased the speed of the top-of-the-line P85D via use of ‘ insane mode ’ - enabling the car to go 0 to 60mph ( 97km/h ) in 3.2 seconds , compared to the usual 5.9 seconds . But aside from speculation , there isn ’ t much that can be done except wait to see what exactly Musk will reveal on Friday . Software updates to the Model S aren ’ t unprecedented - in January , an update increased the speed of the top-of-the-line P85D via use of ‘ insane mode ’ - enabling the car to go 0 to 60mph ( 97km/h ) in 3.2 seconds , compared to the usual 5.9 seconds . Shown is a still from a video where people tested out the feature .
Android - based Tesla is to announce a software update on Friday . Elon Musk said it would be for the ' entire Model ##sla fleet ' in a tweet . This suggests it may be a trick to boost the battery power of the car . Others have suggested it may be new turn by turn navigation software . This will direct drivers to charging stations when running low on charge . The goal is to reduce the fear of the car 's dying - known as ' range anxiety '