Hello
My first post....
I have Magic Pie internal controller and I have the 5 beeps of death. I am assuming I am looking at a new controller. It would appear the GM controller is inferior due to overvoltage troubles. I wonder about putting in a third party controller such as an Infineon Controller 40 amp. Has anyone done this? How do I remove the old internal controller of the Magic Pie?
Any help appreciated?
Just make sure you get an Infineon that will match your batteries max continuous C rating or you could kill it!
I think the best battery for the pie with a 40 amp Infineon is a Ping battery 48v 20ah! (cheap enough and easy to charge)
LiPo from hobbyking.com is worth serious consideration but you have to do a lot of study on LiPo on connecting up and charging, they don't come with a bms but can output some massive currents, even from a small pack. And chargers can be expensive, but that's a once off!
Lipo is very unforgiving of mistakes, and charge discharge cycles range from 500- over 800 if you follow the simple rules of LiPo, I.E not to charge or discharge to full capacity.
But the cool thing is you can add more batteries later to make higher capacity, only thing is to charge you have to disconnect your series parallel configuration and charge in parallel!
There are better LiFePo4 batteries available too that have higher C ratings in a smaller pack. The pie is a Hungry motor on hills and on acceleration @ 40 amps it really has got some up hill pull and acceleration is fantastic! @ 80 amps it's scary!
Mark
