Tesla to Drucker - The Understatement
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1. Both the coolant pump as well as the fan will draw power as needed to keep the battery pack in optimal storage condition Also the audible and visual warning signals that went off 7 days straight 24 hours a day before being exhausted also performed exactly according to specification TESLA MOTORS INC Based on this clear log of events the decision by the LA Service Center to decline warranty of the needed repairs is correct and justified Since the first deliveries of Roadster in the US all our documentation as well as the handover process when the vehicle was new underscored the need to keep the Roadster plugged into power when leaving the vehicle for extended periods of time You referred to the language on our Model S website regarding taking a trip You must also read this in context with the bullet points below Here are the two bullet points Battery lifetime is affected by two things age and the energy it delivers over the years The Tesla battery is optimized for nightly charging such topping off enhances the longevity of your battery The Model S battery will not lose a significant amount of charge when parked for long periods of time For example Model S owners can park at the airport for extended vacations without plugging in The fact that your battery pack only deteriorated to 0 in 42 days when parked with a charge level of 21 is a testament to how long it is actually possible to keep the Roadster in storage without an e2. Saber Palo Alto 02 14 2012 Concerns Battery pack in Roadster VIN 340 Dear Mr Drucker Thank you very much for allowing us to evaluate your Tesla Roadster We have done a thorough assessment of the events leading up to your battery failure We reviewed the vehicle logs to understand all events leading up to the complete discharge and therefore complete failure of your battery pack The details below Nov 19th Last known charge cycle SOC State of Charge at the end of the charge was 87 no faults Nov 22nd Last known drive SOC at the end of the drive was 21 Vehicle goes into idle mode as it was not placed on charge SOC slowly decreases as expected Both the fan and coolant pump continue to operate as needed to keep the battery pack at its optimal storage temperature Dec 28th Vehicle triggers audible and visual alarm Plug me in due to low SOC This starts at 4 SOC level remaining Jan 3rd SOC hits 0 Jan 17th VMS Vehicle Management System stops recording logs as the battery voltage will no longer support CAN traffic under 250v Feb 3rd Vehicle arrives at the LA Service Center Feb 7th LA Service Center offers to replace the complete battery pack at a price of around 40 000 Warranty was declined as this was a clear case of non charging that caused the failure From a technical perspective a properly functioning Roadster left with only 21 charge will deteriorate in charge level in the pattern we see here
3. ble Sincerely J Joost de Vries Vice President Worldwide Service
4. xternal source of power connected With a fully charged battery pack it would last many months before the 4 threshold and subsequent alarms would be reached Our Quick Reference Guide Battery Charging Guide User Manual as well as the Warranty booklet all identify in clear language to keep the Roadster on external power when parked I have attached copies for your reference Lastly at every service visit our Service Center technicians leave a remember to charge card in the vehicle after service We found one in the boot of your Roadster today We are very sorry for the situation you now find yourself in but looking objectively at this case we cannot provide you any financial subsidy towards the replacement of your battery pack under warranty We stand ready to replace your battery at a moments notice based upon the quote previously provided by the LA Service Center Please let me know if you would like us to do so I remain available at any time to answer any and all questions you may have regarding this situation Please feel free to contact me via email or on my mobile at MM I will be traveling extensively over the next few weeks in Europe so please leave me a message or email if I do not answer immediately It is likely Iam ona plane or different time zone if I do not answer Thanks again for giving us a day to assess this situation We look forward to getting this taken care of for you as soon as possi
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