Repurpose IZIP E3 Dash Battery/Charger

[topaz024]

Hi All,

So my lovely IZIP E3 Dash just got stolen

I was thinking of getting the REI Novara Gotham because of the Gates Carbon Belt Drive + Nuvinci N360 CV transmission, and eventually converting it one day (when I have a house and a garage to protect the bike!)

My question is, I still have the IZIP Battery + Charger--would these be compatible with a Bafang BBS02 or BBSHD conversion kit?

Thanks for reading

 

[harryS]

Sure, the motor will work with most any 48V battery. You will need to find a battery cradle.

 

[topaz024]

Sure, the motor will work with most any 48V battery. You will need to find a battery cradle.

Thanks!

 

[John Daley]

Thanks!

Or, you could sell your battery and charger to someone who could use it, like me, for instance

 

[topaz024]

Or, you could sell your battery and charger to someone who could use it, like me, for instance

unfortunately it's already been sold, but thanks for inquiring, and stay safe out there!

 

[Trail Cruiser]

The battery of my 2015 IZIP Dash has four terminals with the following voltage. The control panel has 4 assist levels. Can any body figure out what terminals are used on different assist levels?

Possible scenarios are the following:
level 1 = terminal A, 14 volts
level 2 = terminal C, 24 volts
level 3 = A+B, 34 volts
level 4 = B+C, 44 volts
I assume on throttle mode, all terminals are open and then amp is controlled by degree of twist on the throttle.

Another scenarios would be;
level 1 = terminal C, 24v
level 2 = A+B, 34v
level 3 = A+C, 38v
level 4 = B+C, 44v
And ;
level 1 = terminal B, 20v
level 2 = A+B, 34v
level 3 = A+C, 38v
level 4 = B+C, 44v

And lastly;
level 1 = C, 24v
level 2 = A+B, 34v
level 3 = B+C, 44v
level 4 = A+B+C, =/> 48v (whatever max output the battery can provide)

This will give me a good idea on what assist levels to alternate so all the cells will be equally used (for balanced consumption). Or I could use the throttle every now and then to balance the battery.

I know there is a built in BMS that also balances the battery but I don't think it can balance that quick when you are actively using only some group of cells in the battery.

 

[harryS]

I wonder why the three extra voltages appear, but I do doubt that the EZIP uses specific cell groups at different voltage levels to run its four PAS levels. Bike controllers use frequency not voltage to control motor speed.

Taking a different higher level view, running one PAS level on only selected cell group(s) wouldn't use all the battery watt-hours available for use. You would get less range riding slow on PAS 1 for example, and wear out the battery sooner.

Are there perhaps a set of accessory lights on the bike that run at 14 volts?

 

[Trail Cruiser]

I wonder why the three extra voltages appear, but I do doubt that the EZIP uses specific cell groups at different voltage levels to run its four PAS levels. Bike controllers use frequency not voltage to control motor speed.

Taking a different higher level view, running one PAS level on only selected cell group(s), wouldn't use all the battery watt-hours available for use, and would impair range.

Are there perhaps a set of accessory lights on the bike that run at 14 volts?

I would guess that this is obsolete method of power modulation. It looks like it uses a switching mechanism to choose among the terminals. Not as sophisticated and efficient as the current PWM/MOSFET systems.

I don't get a huge difference in range. PAS 1 = 20 miles, PAS 3-4 = 14 miles.

 

[Trail Cruiser]

I hope I am wrong with my assumption. I hope all battery cells are used on all three terminals through voltage step down. I wonder what method, simple resistor or mosfets.

 

[Chris Nolte]

Sorry to hear about the theft. I actually have several parts from a iZip Dash that got damaged in shipping. I believe I have the motor, battery dock, bottom bracket and some other parts. I sold the battery already and the display was broken. Let me know if you might be interested. I could let it go pretty cheap. Or if you want I could just sell you the battery dock and you can use it with a Bafang motor.