I'm not a pro with photo voltaic, but what is different from this battery to the other's already available to small solar systems? Capacity, longevity?

This is Li-Ion, if handled improperly fire and explosion is risk, but I guess TESLA has that handled via proper electronic control. It takes decade to decades for good Li-Ion to discharge on its own while stored and not used. It gives considerably higher currents if needed in comparison to any other technology. (With exception of Li-Po which is close in most of parameters.) Solar systems usually have cheap Lead-Acid batteries like cars have since they can survive overvoltage during charging (Li-Ion makes gas which inflates cell and damages contacts in layers) or can be completely discharged without risk of fire (cheap charging discharging control can be used), risk of permanent damage to battery still applies. Li-Ion if used properly can be charged thousands times without significant degradation of capacity. While lead-Acid electrodes degrade quite fast. TESLA promises that they'll have in time batteries which can take in cars 10000 charges. (mind that car battery is charged in matter of minutes with very high current and its life span is shortened by those shocks, solar charges slowly and safely so even today's batteries may last very long time.) http://my.teslamotors.com/en_GB/forum/forums/new-lithium-ion-battery-chemistry

Thanks for the info. I was just thinking of that little solar thing my grand parents have on their garden house for about 14 or so years now, which is about to die more or less (or it's the solar panels, idk), so I was wondering what's new about these.

Nice, now if only I could afford a Tesla Model S!

Then you could charge your Model S with with your Tesla solar filled battery pack.

Then you could charge your Model S with with your Tesla solar filled battery pack.

That's the dream. Until then, I'm loving my Focus and my 3000gt. =]

charge power off the grid and then use that power to charge your car... tesla-incepSHUN!

Nice, now if only I could afford a Tesla Model S!

Same here. 😀

To be success this product need 2 factor 1. price and 2. reliability for reliability... i think it will be based Cobalt Aluminum or Manganese Cobalt based what i read, li-ion based this chemical indeed far more reliable & tolerant to abuse than Cobalt Oxide that widely use in notebook/smartphone

This is Li-Ion, if handled improperly fire and explosion is risk, but I guess TESLA has that handled via proper electronic control. It takes decade to decades for good Li-Ion to discharge on its own while stored and not used. It gives considerably higher currents if needed in comparison to any other technology. (With exception of Li-Po which is close in most of parameters.) Solar systems usually have cheap Lead-Acid batteries like cars have since they can survive overvoltage during charging (Li-Ion makes gas which inflates cell and damages contacts in layers) or can be completely discharged without risk of fire (cheap charging discharging control can be used), risk of permanent damage to battery still applies. Li-Ion if used properly can be charged thousands times without significant degradation of capacity. While lead-Acid electrodes degrade quite fast. TESLA promises that they'll have in time batteries which can take in cars 10000 charges. (mind that car battery is charged in matter of minutes with very high current and its life span is shortened by those shocks, solar charges slowly and safely so even today's batteries may last very long time.) http://my.teslamotors.com/en_GB/forum/forums/new-lithium-ion-battery-chemistry

already read this ? http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries based that article li-ion need to be maintained at charged level when storing because if it deep-sleep it might cause chemical reaction and some can cause making gas, and causing the battery swelling, beside leaking i havent heard that li-ion can be stored for long time because it need to be maintained at charged level, and beside that temperature also seems effect battery lifetime and li-ion degrade fast too although yeah, depends on chemical, some chemical have better lifetime but every battery have limited-lifetime ever since it out factory, thats why u never want to buy and store battery... u buy when u going to use

if it deep-sleep it might cause chemical reaction and some can cause making gas, and causing the battery swelling, beside leaking

Have you been spying on me in bed?

Have you been spying on me in bed?

:D Of course a Tesla S would be great, but to be honest, there's three charging stations for it in the whole of my country. Three. And they are about a full battery apart each.

We have a couple in Toledo, the Art Museum is one place I know of.

already read this ? http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries based that article li-ion need to be maintained at charged level when storing because if it deep-sleep it might cause chemical reaction and some can cause making gas, and causing the battery swelling, beside leaking i havent heard that li-ion can be stored for long time because it need to be maintained at charged level, and beside that temperature also seems effect battery lifetime and li-ion degrade fast too although yeah, depends on chemical, some chemical have better lifetime but every battery have limited-lifetime ever since it out factory, thats why u never want to buy and store battery... u buy when u going to use

Yes, Li-Ion/Po has to be stored at charged state. And you should not ever do full discharge. But since article states that fully charged Li-Ion loses 20% of its total capacity (unrecoverable) in one year... ...my Li-Ion batteries which are 5+ years old are already dead. I'll have to inform them that they should not perform as well as they did when new. And I should inform manufacturer not to write on them that they can be stored for 10 years without recharging once charged. You know, technology changes, My Li-Po in RC car (2S2P 8.4V 5Ah 60C) can give 300A and it is old tech. New battery of same size/weight: 2S2P 8.4V 7.5Ah 90C can give 675A. In past charging current was advised to be 1C at most (1C = current equating capacity 2Ah battery should be charged at highest by 2A ~ 1hour charge time). Turnigy nano-tech types can be charged up to 15C, that means fully charged in 4 minutes.