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Old 05-18-2022, 08:34 AM   #11
Volt_Ampere
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Default Re: 2011 RXV LiFePo Upgrade Taking Out Solenoids

I have seen plenty of Lithium RXV's here - mostly directly from dealers either new or refirbs. I don't think they do anything special but I have never talked to the dealers about it.
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Old 05-18-2022, 11:56 AM   #12
Bama Brad
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Default Re: 2011 RXV LiFePo Upgrade Taking Out Solenoids

I think Pat is referring to the BMS shutdown that locks up the brakes....
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Old 05-18-2022, 03:02 PM   #13
cyberduk
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Default Re: 2011 RXV LiFePo Upgrade Taking Out Solenoids

I appreciate the info with the battery issue, everyone. I picked up a single 48v 150ah 200/600. Comes with a 20amp charger. Hopefully, this will solve the cut-out.

I wasn't too irritated to discover I researched and still purchased insufficient batteries. Lesson learned. What really gets me is finding the possibility of that brake locking up the rear-end at 30+ with my elderly Mother driving it. She just healed up from a broken femur. Not going through that again.
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Old 05-18-2022, 05:51 PM   #14
Pat911
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Default Re: 2011 RXV LiFePo Upgrade Taking Out Solenoids

Iím thinking out aloud here and any mods will need to be thoroughly tested but it would need something to keep the ebrake disengaged on a BMS shutdown AND a way of bringing the cart to a controlled stop at the same time.

There must be mods to the factory lithium otherwise EZGO is exposing themselves to lawsuits in the event of injury or worse, death if a lockup occurs.
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Old 05-18-2022, 06:04 PM   #15
cyberduk
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Default Re: 2011 RXV LiFePo Upgrade Taking Out Solenoids

I'm putting disk brakes on the front before I mess with the motor brake.

One idea I'm still playing with is a relay or two that will supply power to the e-brake in the event power is cut by the controller. Shouldn't be more than a fraction of a second before the brake comes back off.

I haven't tried powering it up yet with the brake removed from the motor but still connected. Do you know if it will fail the start-up tests like that?

-Don
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Old 05-18-2022, 07:27 PM   #16
Pat911
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Default Re: 2011 RXV LiFePo Upgrade Taking Out Solenoids

No I donít Don, try it and let us all know please.

Cheers
Pat.
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