From what I have read so far the newer cars equipped with a low voltage lithium battery will not boost from a standard 12v booster pack simply because the voltage is too low. The Tesla lithium consists of a 4S setup which is around 16.4v. There is a little more to it however after all the electronics inside the new battery are done with dealing with the output it falls to around 15.5v.
When the tow service shows up and magically boosts the car with his magic booster it is really only another 4s pack capable of higher voltage.
I have a few RC toys and therefor am familiar with lithium packs. I made my own compact booster packs several years ago which will put anything on the market designed for boosting to shame. I did choose to use 4s at the time as I figured a bit more voltage for boosting purposes is a plus. Have a few of these I keep in both cars and on the boat. Have used them more than once to help a stranded car owners in need of a boost, snowmobile, PWC, lawn tractor and have even used it as a 12v power supply for odds and ends such as an inflator and even a 12v transfer pump. Point is they are very useful in many applications.
When your low voltage battery on a Tesla goes too low you may not be able drive it or even get into it. Boosting will possibly solve both or at least get you into the car. This video explains it but shows the older convention lead acid battery where any standard booster pack will work. Again, standard booster packs do not work on a lithium battery equipped Tesla as they output only 12v where 15+ is required. This booster pack will also work on standard lead acid batteries therefor the best of both worlds.
A set of compact booster cables, some EC5 soldered connectors and you have a booster pack. Everything to make one is available on Amazon for those that may want to make their own.
CAUTION, there is no safety on these home made units meaning it will short if the 2 clamps touch and there is a rather large amount of dangerous juice available in them, actually can easily be even more than the Tesla lithium pack which is only 6.9AH! In my case it is 6.5AH so pretty much equivalent to the Tesla battery. Battery is only 5.5" long. There is also no reverse polarity protection so it you hook this up incorrectly to the battery you will be welding something!
There are clamps available that will protect against reverse polarity or short circuit however I have no tried them so cannot say if they work well or not.
When the tow service shows up and magically boosts the car with his magic booster it is really only another 4s pack capable of higher voltage.
I have a few RC toys and therefor am familiar with lithium packs. I made my own compact booster packs several years ago which will put anything on the market designed for boosting to shame. I did choose to use 4s at the time as I figured a bit more voltage for boosting purposes is a plus. Have a few of these I keep in both cars and on the boat. Have used them more than once to help a stranded car owners in need of a boost, snowmobile, PWC, lawn tractor and have even used it as a 12v power supply for odds and ends such as an inflator and even a 12v transfer pump. Point is they are very useful in many applications.
When your low voltage battery on a Tesla goes too low you may not be able drive it or even get into it. Boosting will possibly solve both or at least get you into the car. This video explains it but shows the older convention lead acid battery where any standard booster pack will work. Again, standard booster packs do not work on a lithium battery equipped Tesla as they output only 12v where 15+ is required. This booster pack will also work on standard lead acid batteries therefor the best of both worlds.
A set of compact booster cables, some EC5 soldered connectors and you have a booster pack. Everything to make one is available on Amazon for those that may want to make their own.
CAUTION, there is no safety on these home made units meaning it will short if the 2 clamps touch and there is a rather large amount of dangerous juice available in them, actually can easily be even more than the Tesla lithium pack which is only 6.9AH! In my case it is 6.5AH so pretty much equivalent to the Tesla battery. Battery is only 5.5" long. There is also no reverse polarity protection so it you hook this up incorrectly to the battery you will be welding something!
There are clamps available that will protect against reverse polarity or short circuit however I have no tried them so cannot say if they work well or not.
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