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Unread 02-25-2014, 01:38 AM   #31
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Default Re: New battery design help

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Originally Posted by pachanga90 View Post
Old Carts are like Old Cars, Only those who have them understand it,or respect it,The others always think Old= Junk,New= Good.I'll keep my Old Junk!
For the old "junk", i'll keep my old G2, G9, & Marathon sparky
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Unread 02-25-2014, 06:08 PM   #32
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Default Re: New battery design help

Yeah me too, I love it when I am playing golf and go flying by the newer carts!! In my old junk!!!
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Unread 02-26-2014, 10:56 AM   #33
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Default Re: New battery design help

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Originally Posted by cgtech View Post
Only for stock carts? Good for upgraded carts? Max discharge rate? (many Li cells have max discharge rate of 10C = MAX 400 amp controller if using 40ah cells). Also, are you leaving any "buffer" in here? (only using 80% max C, SOC, ect..)
As long as the power ratings are within 400amps (10c) for 30 seconds and 120amps (3c) continuous they will be suitable for any vehicle.

The main reason we are targeting golf courses to begin with is the frequency to which they are being used.

These cells are operating at 90% DOD.

Remember the voltage sag is significantly reduced with these cells in comparison to lead acid, which means the higher amperage of the controller is not necessary. The 48v pack itself is running at 51.2 volts.

leigh
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Unread 02-26-2014, 09:39 PM   #34
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Default Re: New battery design help

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Originally Posted by lnpurnell View Post
As long as the power ratings are within 400amps (10c) for 30 seconds and 120amps (3c) continuous they will be suitable for any vehicle.

The main reason we are targeting golf courses to begin with is the frequency to which they are being used.

These cells are operating at 90% DOD.

Remember the voltage sag is significantly reduced with these cells in comparison to lead acid, which means the higher amperage of the controller is not necessary. The 48v pack itself is running at 51.2 volts.

leigh
True and true, got cha. No huge controllers... The reduced voltage sag is very significant. Building a lipo rxv today and tomorrow. Who's charger are you using?
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Unread 02-26-2014, 10:40 PM   #35
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Default Re: New battery design help

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Building a lipo rxv today and tomorrow.

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Unread 02-27-2014, 01:11 PM   #36
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Default Re: New battery design help

Thats awesome! Who is your electrician?
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Unread 02-27-2014, 02:54 PM   #37
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Default Re: New battery design help

Now THAT is a sparky.
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