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#1 |
Gone Wild
Join Date: Jul 2018
Posts: 255
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![]() Getting ready to install my new lithium. I keep reading where people say their top speed goes up after install. Question is why or how? If I have the rpms topped out at say 4k, then cart should stop power flow or kick in Regen correct? So how does a stock cart have a higher top speed by changing battery?
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#2 |
Gone Wild
Join Date: Nov 2023
Posts: 1,960
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![]() Approx 300 lbs less weight
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#3 |
Happy Carting
![]() ![]() Join Date: Dec 2007
Location: Southern California
Posts: 73,962
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![]() Decreased weight does decrease the load on the motor for sure.
Another key factor is the higher voltage of lithium vs lead acid and importantly the decreased voltage sag under load vs lead acid. Basically you have reduced the load and increased the voltage with lithium. Voltage, even a few volts, at top speed influences motor rpms. If there is a rpm limit set in your sepex controller and the motor reaches that limit then the controller will limit the rpms to the setting regardless of the battery type or voltage. |
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#4 | |
Gone Wild
![]() Join Date: Jan 2013
Location: Wandering the Country
Posts: 164
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![]() Quote:
By the way, the cart is 275 lbs lighter after the switch to lithium. |
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#5 |
Gone Wild
![]() Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,798
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![]() On my carts with Alltrax controllers Lithium does yield a higher top speed due to the slightly higher voltage. Acceleration is vastly improved due to the significant weight reduction. :-)
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