GoldenMotor.com Forum

General Category => Magic Pie & Smart Pie Discussions => Topic started by: MagneticMotorE on February 03, 2012, 06:59:04 PM

Title: What's The Default Voltage Settings of Magic Pie 2.0?
Post by: MagneticMotorE on February 03, 2012, 06:59:04 PM

What Is The Default Voltage Settings of Magic Pie 2.0?
I bought mine back in September of 2011...

Title: Re: What's The Default Voltage Settings of Magic Pie 2.0?
Post by: e-lmer on February 04, 2012, 02:13:45 PM

I believe that  you  chose it. 

The settings are programmed
when you place your order.

Title: Re: What's The Default Voltage Settings of Magic Pie 2.0?
Post by: MagneticMotorE on February 05, 2012, 09:12:13 AM

but someone said it's set at 24 volts even when you buy a 48v

im just asking around to make sure of it. if so, I want to change it to 48v but have no UBS cord to do so. LOL!

Title: Re: What's The Default Voltage Settings of Magic Pie 2?
Post by: Bikemad on February 15, 2012, 04:45:27 PM

I'm pretty sure that most controllers were pre-set by default to 24V, which allowed them to be used with 24, 36 or 48V. Your controller will run fine on 48V, as the voltage setting is mainly for the Low Voltage Cut-off, which is used to prevent the battery from becoming overdischarged, but most ebike batteries nowadays come with their own Battery Management Systems (BMS) which also does the same job. So unless you're using Sealed Lead Acid (sla) batteries or a Lithium Polymer (LiPo) pack there is not much point in changing the voltage setting.

Saying that, I use a LiPo pack which I often change between 25.9V 10Ah and 51.8V 5Ah for use with my Pie. Although I don't have a BMS, I do use an external plug in battery monitor unit which beeps if the voltage starts to fall too low.

Alan