eiprol
1 mW
- Joined
- Oct 7, 2015
- Messages
- 18
Hi everybody!
I've been half a month reading and learning about how to do my own electric board, and I finally decided to sign up here and start building my own!
I'm thinking on a single motor configuration, to achieve speeds of around 30Km/h (I don't mind more, but I don't really need it), and a range of 10/15Km (I prefer keeping a thin board and being able to charge the whole thing faster... my commutes are not long after all).
I'm trying to choose the right components, but everytime I think I have it, some component is sold out and I have to start again; to be honest, part of my problem is my lack of knowledge... and there are so many posibilities, that I'm really confused!
I have also some basic questions about electronics; If you could give me a hint, I would appreciate it!
1) When is a BMS needed? what is it exactly? This leads me to the next question...Do I need it for laptop-style charging, right? I really want my board to be charged using a "laptop" style charger, (As I said, I prefer smaller batteries for shorter commutes, and I want to be able to carry a laptop size charger with me). Is there any tutorial about BMS, or any pre-built BMS I can buy to achieve this?
2) Sensored motors: Does it mean I can track the rpm of the motor (and maybe calculate the speed/distance somehow?). If yes, what else do I need? ESC's can store this information to retrieve it afterwards? I plan using my phone as remote (bluetooth), so maybe I could send the data (speed,miles, etc) in real time to my phone and store it there...
I was thinking of, maybe, this motor:
http://alienpowersystem.com/shop/brushless-motors/alien-5065-sensored-outrunner-brushless-motor-270kv-2200w-2/
Again, the problem here, is that it's only available for backorder...
3) ECS: which ECS should I use for this APS motor, taking into account that I want to be able to track distance/speed? I've been reading about "open source" VESC, but I don't know enough to build it from scratch, and I can't find any available unit on sale right now.
4) Battery: I guess that, with only one motor and my needs, using a 6S battery should be enough. Am I right? How long would I ride with 5000mAh 6S battery? And 10000mAh?
I also have the concern of safety; most of the batteries used around here are Lipo I think, but then I read that BoostedBoards decided to use LifePo4 batteries because they are safer, and since I plan charging the battery attached to the board with a laptop charger, I don't need to remove it...
- Lipo: http://alienpowersystem.com/shop/batteries/alien-6s-10000mah-35c-lipo-battery-flat-configuration-size-a/
- Life4po: (how many? only 2 to achieve 5000mAh, and 4 to achieve 10000mAh? I think boosted was using 12 A123... I'm missing something!): http://www.hobbyking.com/hobbyking/store/__83316__A123_3_3V_Lithium_Ion_2500mAh_Single_Cell_Battery_EU_Warehouse_.html
I think these are my main concerns; I'm sure they are all pretty basic questions, but I've just started reading and learning and I feel overwhelmed and confused!
Thank you in advance!
I've been half a month reading and learning about how to do my own electric board, and I finally decided to sign up here and start building my own!
I'm thinking on a single motor configuration, to achieve speeds of around 30Km/h (I don't mind more, but I don't really need it), and a range of 10/15Km (I prefer keeping a thin board and being able to charge the whole thing faster... my commutes are not long after all).
I'm trying to choose the right components, but everytime I think I have it, some component is sold out and I have to start again; to be honest, part of my problem is my lack of knowledge... and there are so many posibilities, that I'm really confused!
I have also some basic questions about electronics; If you could give me a hint, I would appreciate it!
1) When is a BMS needed? what is it exactly? This leads me to the next question...Do I need it for laptop-style charging, right? I really want my board to be charged using a "laptop" style charger, (As I said, I prefer smaller batteries for shorter commutes, and I want to be able to carry a laptop size charger with me). Is there any tutorial about BMS, or any pre-built BMS I can buy to achieve this?
2) Sensored motors: Does it mean I can track the rpm of the motor (and maybe calculate the speed/distance somehow?). If yes, what else do I need? ESC's can store this information to retrieve it afterwards? I plan using my phone as remote (bluetooth), so maybe I could send the data (speed,miles, etc) in real time to my phone and store it there...
I was thinking of, maybe, this motor:
http://alienpowersystem.com/shop/brushless-motors/alien-5065-sensored-outrunner-brushless-motor-270kv-2200w-2/
Again, the problem here, is that it's only available for backorder...
3) ECS: which ECS should I use for this APS motor, taking into account that I want to be able to track distance/speed? I've been reading about "open source" VESC, but I don't know enough to build it from scratch, and I can't find any available unit on sale right now.
4) Battery: I guess that, with only one motor and my needs, using a 6S battery should be enough. Am I right? How long would I ride with 5000mAh 6S battery? And 10000mAh?
I also have the concern of safety; most of the batteries used around here are Lipo I think, but then I read that BoostedBoards decided to use LifePo4 batteries because they are safer, and since I plan charging the battery attached to the board with a laptop charger, I don't need to remove it...
- Lipo: http://alienpowersystem.com/shop/batteries/alien-6s-10000mah-35c-lipo-battery-flat-configuration-size-a/
- Life4po: (how many? only 2 to achieve 5000mAh, and 4 to achieve 10000mAh? I think boosted was using 12 A123... I'm missing something!): http://www.hobbyking.com/hobbyking/store/__83316__A123_3_3V_Lithium_Ion_2500mAh_Single_Cell_Battery_EU_Warehouse_.html
I think these are my main concerns; I'm sure they are all pretty basic questions, but I've just started reading and learning and I feel overwhelmed and confused!
Thank you in advance!