A123 Worlds Smallest VS. "Strongest" 12V Jumpstart battery

In this video i finally decided to show you how IMPRESSIVE are these A123 cells. During the test, when the starter ran for about 2-3sec, the current reached 230A.

The GM volt wanted to use the same A123 brand and chemistry of these cells.

I never saw any smaller booster pack than this one that i built.. even though i searched on the www or in any stores.. so i believe that this is probably the most compact and powerfull boostpack in the world... They dont need to be plugged like 10 or 15 minutes like many "booster" conected to lighter plug....

This one can quick boost in less than 30sec.. just the time to connect it.. no need to wait!

For those who ask about battery mixing.. there is no problem.. their charge voltage is 14.4V (3.6V/cells) and this is the same common voltage of any alternator charging voltage. their charge and discharge profile (graph curve) one of the most similar than SLA (lead acid)... Nicad or NiMh can not do that... they can explode... the A123 can not explode.. just search about: "A123 Nail test" on youtube you will see... they are SAFE battery.. no toxic.. no fire...

In this voideo i'm not trying to sale them.. I repeat: I just want to show people that the NEW Lithium battery are far away from the last that explode (Sony lithium cobalt.. like on the laptop or cellphone..)

Like for the SAFT battery, the army is using them too.

I know these A123 cells perfectly cause i tested them and i know every of their caracteristics. Just ask.. that will be a pleasure to me to tell you about them!

Doc

Category:

Autos & Vehicles

Tags:

• Doctorbass
• A123
• 12V
• Killacycle
• LiFePO4
• Battery
• world
• most
• powerfull
• GM
• Volt
• Jump
• start
• Jumpstart
• Car
• battery
• Boost
• Booster
• Dewalt
• Tesla
• test

[hippyraverocker]

Surely that cannot be good for the cells? Lead acids are built to give huge current short term to start the engine. I would have thought the combination of cracking the engine and then high charge current from the alternator would destroy them.

[Doctorbass]

@hippyraverocker

These kind of lithium cells can last for 2000cycles compare to lead acid ( 200 cycles) they can be cdischarged at 60C ( 140A) each cell and be charged at 4C ( 10A)

but since this pack is not built to stay connected to teh alternator, it does not really matter for the few second it is connected to it

[imfree707]

Gotta' love the low internal resistance of those nicads!!!

[Doctorbass]

@imfree707 These are A123 Liithium Phosphate.. not Nicad

[foxchemdry]

Does anyone realize that voltage alone cannot start a car engine--it takes AMPERAGE, which is something some little tiny battery will not have. It's kind of like the ratio of horsepower vs. torque--if you tried to tow 10,000 pounds with a Subaru WRX with 300 horsepower, you will go nowhere.........but if you hooked up a Chevy truck with only 275 horsepower, you will drive away with no problem because you have TORQUE. Voltage is your horsepower, amperage is your torque.

[Doctorbass]

@foxchemdry

This is another lithium battery starting an integra like me: youtube WkKRqaNPIBE

[Doctorbass]

It's really not ANY 12V battery that can start a car. (BTW All battery are DC...)

It depend on the current capability of that battery.. Power is Voltage time current.. and to start a gas engine you need BOTH.

These cels can produce easy 120A during 10 second and near double during 2-3 sec... not a Makita cordless drill battery!.. The Makita LIthium are using the Sony Lithium manganese 18650V and VT) and they are capable of 30 or 40A max for the bigger pack ( BL1830)

[Doctorbass]

@foxchemdry

This guy you are talking about is ME.. and i can ensure you that it start any 4 cylinder engine no problem. I also tried to disconnect the oem battery and to start the engine ONLY with the tiny battery and it work. Tis battery have a C rate of 60C at 2.3Ah wich is around 143A for 10 second.. but it deliver much more under heavier load like a starter.

Car maker dont want to spend $ on lithium battery to start ICE .. they preffer making an electric car with them as well

[dailypinoyshowbiz]

So where are the improper remarks are?

[majorjam1]

@majorjam1 also these cells can produce huge current (amperage)

[majorjam1]

@foxchemdry another fool! who does not know that horsepower and torque are the same ! look it up on google:)

horsepower is just torque multiplied by the rpm :)

[mathios1]

@foxchemdry Don't mix up everything... Actualy Horsepower refer to Watts, not voltage. Voltage refer to torque and amps refer to speed. You can have as much torque as you want, if nothing moves you don't produce any power also you can have as much voltage as you want you don't produce any watt if you don't have any amps. If you need 200A at 12V to start your engine, this meen that you will need 100A at 24V. Your WRX will just need to rev at a higher speed to do the same work

[gordoncraig410]

This video went viral on Castries

[veryslyfox]

@Doctorbass That's not correct. Lithium batteries won't last 2000 charges if you drain them down below 11V like you're doing here. They only last 2000 charges if shallow-discharged. LA batteries will last 3000 cycles if discharged shallow. Think about it -- the typical car is started 500+ times per year, and the battery can easily last 5+ years in a moderate climate.

[maakjar]

Awesome!!!