Currie Etrailz handle speed control handle 60 amps?

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chuckklr98   1 mW

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Currie Etrailz handle speed control handle 60 amps?

Post by chuckklr98 » Sep 10 2017 10:59am

Thinking of puting 2 chrome gel cell 15amp in the packs for a combined 60 amps at 24 volts. Do ya'll think the stock speed control can handle the amps?

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Chalo   100 GW

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Re: Currie Etrailz handle speed control handle 60 amps?

Post by Chalo » Sep 10 2017 12:00pm

You're conflating amp-hours (charge quantity) with amps (current). At the same voltage, your controller will draw the same current unless the battery voltage sags enough under load to limit it. So you can have 7Ah or 7,000Ah, but the controller will put out the same peak power at 24V.

Also, adding batteries can increase voltage or amp-hours, but not both. Adding two 12V x 15Ah batteries in parallel to a 24V pack that already contains two of the same results in a 24V x 30Ah pack, not 60Ah.

Adding more lead to any bike is a really terrible idea, though. Save your money for lithium.

16 of these (8s2p) contain more usable energy than the two big ole 15Ah lead bricks, and the listing is for 5 times that many:
http://m.ebay.com/itm/351864366128.
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gogo   10 MW

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Re: Currie Etrailz handle speed control handle 60 amps?

Post by gogo » Sep 10 2017 12:30pm

chuckklr98 wrote:Thinking of puting 2 chrome gel cell 15amp in the packs for a combined 60 amps at 24 volts. Do ya'll think the stock speed control can handle the amps?
Yes.

In addition to what chalo wrote, the ezip trailz system is counting on battery weakness to limit the stress on the motor. Anything you do to increase stress on that motor puts it at risk of overheating.
"A conclusion is the place where you got tired of thinking." -Steven Wright

chuckklr98   1 mW

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Re: Currie Etrailz handle speed control handle 60 amps?

Post by chuckklr98 » Sep 10 2017 9:48pm

Chalo wrote:You're conflating amp-hours (charge quantity) with amps (current). At the same voltage, your controller will draw the same current unless the battery voltage sags enough under load to limit it. So you can have 7Ah or 7,000Ah, but the controller will put out the same peak power at 24V.

Also, adding batteries can increase voltage or amp-hours, but not both. Adding two 12V x 15Ah batteries in parallel to a 24V pack that already contains two of the same results in a 24V x 30Ah pack, not 60Ah.

Adding more lead to any bike is a really terrible idea, though. Save your money for lithium.

16 of these (8s2p) contain more usable energy than the two big ole 15Ah lead bricks, and the listing is for 5 times that many:
http://m.ebay.com/itm/351864366128.

I dont have the money for Lithium . packs are currently 2x10amp each side wired parallel, so 2x10, x 2 at 24volts for 20 amps. I can get 4 - 15 amp agm chrome batts for 100 shipped and just use longer bolts in case to make it work.

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amberwolf   100 GW

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Re: Currie Etrailz handle speed control handle 60 amps?

Post by amberwolf » Sep 10 2017 10:09pm

Those aren't "amps".

They are "Amp-hours", commonly abbreviated Ah.

They do not mean the same thing at all.

If you don't use the right terms, it's confusing to everyone, including you.

chuckklr98   1 mW

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Re: Currie Etrailz handle speed control handle 60 amps?

Post by chuckklr98 » Sep 10 2017 10:14pm

amberwolf wrote:Those aren't "amps".

They are "Amp-hours", commonly abbreviated Ah.

They do not mean the same thing at all.

If you don't use the right terms, it's confusing to everyone, including you.
just describing as the retailer does,

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amberwolf   100 GW

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Re: Currie Etrailz handle speed control handle 60 amps?

Post by amberwolf » Sep 10 2017 10:21pm

Better to use the correct terms, and to notify the retailer that they're using the wrong ones, too, so neither of you perpetuates the problem and confusion among yet more people. ;)

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