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How do the LEGO MINDSTORMS Education EV3 Motors compare with the NXT Motors?
Large Motor specifications are the same as on NXT; however, the build interface is optimized for faster and more complex building possibilities. 

The Medium Motor is a completely new motor, providing new possibilities. 

For detailed information on the LEGO MINDSTORMS Education EV3 Motors see the Product Sheets. 
Are the LEGO MINDSTORMS Education EV3 Motors interchangeable with the NXT Motors?
Technically, yes, but the designs of the LEGO MINDSTORMS Education EV3 Large Motor and the NXT Motor are different. The LEGO MINDSTORMS Education EV3 Large Motor allows for a better building experience.  
Can LEGO MINDSTORMS Education EV3 and NXT motors be used together?
Yes.  
Can you use the LEGO MINDSTORMS Education EV3 Motors with the NXT Brick?
Yes. You can use both the Large and the Medium Motor with the NXT Brick. 
Can you use power-function motors with the LEGO MINDSTORMS Education EV3 Brick?
 No. The connectors do not match. 
What does "daisy-chain" mean?
To daisy-chain is the ability to link up to four LEGO MINDSTORMS Education EV3 Bricks using a USB cable and thereby enabling your robot to have sixteen output ports and sixteen input ports, all controlled from the main LEGO MINDSTORMS Education EV3 Brick. 
What does a daisy chain require?
Multiple LEGO MINDSTORMS Education EV3 Bricks, sensors, and motors, plus additional standard USB cable for LEGO MINDSTORMS Education EV3.  
How many LEGO MINDSTORMS Education EV3 Bricks can I daisy-chain?
You can daisy-chain up to four LEGO MINDSTORMS Education EV3 Bricks. 
Are daisy chains supported between Wi-Fi and Bluetooth?
No. Daisy chains require a USB cable connection between the LEGO MINDSTORMS Education EV3 Bricks. 
How is the LEGO MINDSTORMS Education EV3 Brick different from the NXT?
The LEGO MINDSTORMS Education EV3 Brick is a completely new EV3 Brick: It’s the most powerful EV3 Brick ever created by LEGO Education. The LEGO MINDSTORMS Education EV3 Brick is built up around a faster and stronger processor, which not only increases performance on all parameters compared to the NXT Brick but also introduces new possibilities not available with NXT. 
 
For detailed information on the LEGO MINDSTORMS Education EV3 Brick, see the Product Sheet. 
Will the LEGO MINDSTORMS Education EV3 Brick and NXT Brick use the same firmware?
No.
What are the charge times and conditions for the rechargeable battery?
The same as MINDSTORMS’ NXT. The full charge time is four hours and requires a LEGO DC charger (product 8887).  
Can you exchange the batteries between the LEGO MINDSTORMS Education EV3 Brick and the NXT Brick?
No, but the charger is the same between the two platforms, and you can therefore reuse your current charger. 
What are my battery options? AA vs. lithium vs. rechargeables
Recommended use is either AA alkaline batteries or a LEGO MINDSTORMS Education EV3 rechargeable battery.
Will there be an upgrade/conversion kit from NXT to LEGO MINDSTORMS Education EV3?
No, but the LEGO MINDSTORMS Education EV3 solution offers backward compatibility to NXT. You can therefore use your NXT solution together with EV3 Bricks in many situations. 
 
However, if you want the full benefit of the LEGO MINDSTORMS Education EV3 solution, you will need to transition to EV3 Bricks. 
What can Bluetooth in the LEGO MINDSTORMS Education EV3 Brick be used for?
The Bluetooth allows for communication to the programming environment or for EV3 Brick-to-Brick communication. 
Why use a USB cable to connect the LEGO MINDSTORMS Education EV3 Brick to the computer when there is Bluetooth communication?
USB connection is faster, and some PCs do not have Bluetooth. 
Can LEGO MINDSTORMS Education EV3 Bricks be daisy-chained through Bluetooth?
No. A daisy chain uses the USB cable to connect EV3 Bricks. 
What is the difference between Wi-Fi and Bluetooth?
Wi-Fi and Bluetooth serve different purposes. Bluetooth is for close-range communication between two devices. Wi-Fi is for network communication on a wider range, requires a Wi-Fi access point–router, and will consume more battery power than Bluetooth. 
What does made for iPod, iPhone and iPad mean?
The Bluetooth communication on the EV3 will support the same protocol that iOS devices use, e.g., you can communicate with iPod, iPhone and iPad. (That is not possible in the NXT Brick).


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