What's up this is going to be my electric motorcycle build thread. Here is the plan:
So I have been interested in electric motorcycles for a couple years. My first and so far only electric bike was a Razor MX500 I moddified three years ago. Now with more cash saved up, I am in the position to build a full sized electric bike. So, I made a budget for this build and it looks something like this;
$3000 for main parts
$500 or so for shipping
1. Motorcycle chassis: Graduation gift from parents (a year in advance!)
2. Motor: ME0913 Brushless double stack $550
3. Batteries: 30 x T50004S-20HC - Turnigy 5000mAh 4S1P 14.8v 20C hardcase $642
4. Controller: Kelly 72701 $995
5. Charger: iCharger 3010B 1000W 10s Balance/Charger $177
6. Throttle: Twist Throttle Cable with 48 Volt LED Meter $10
7. Balancer: Battery Medic $20
8. Thermal lipo bags: $20
9. Monitor: High Current Cycle Analyst: $120
10. Wires+sprockets+chain about: $200
11. Contactor PTX 200 Amp 72VDC Coils SW180 Type On/Off: $80
12. Other: $176
Total Shipping: $467
That means I will have $533 left for anything else. Ok good, under budget! Good news!
Here is the potential donor bike http://nanaimo.en.craigslist.ca/mcy/2464036941.html
Here in BC, dual sport converted dirt bikes are illegal on the street. So my only option would be to go for one of those which are already street legal. I have to sort out some registration issues with the guy before I can buy it though.
Oh and something I want to point out before I forget is Hobby King's (or HK) shipping. What is up with that bull46#t? First of all it's hella expensive, second its broken. "You ship 55000mah of battery just fine" states the rule when I enter 11 5000mah Turnigys in my shopping cart. But as I add a charger, suddenly "you have entered 55000mah worth of battery to be shipped. This is over the law limit (or something) and you must ship you order in pieces." WTF?! Kinda loled a bit after that. Did anyone else go through this too?
So as my pack will be configured as a 20s6p pack, I am in a bit of a dillema. First, no commercial smart chargers on the market (that I know of) that will charge that size of a series pack. Second, I can't just split the pack into two 10s6p banks, parallel them to make a 10s12p pack and charge them with a big ass 1000w HK charger because i'm buying the batteries in 4s packs that can't be split into two equal batteries without individually disassembly.
So, my plan is to have a series/parallel switch wiring setup so I can switch the battery from riding mode, 20s6p, to charging mode, 4s30p. So the 1000w HK charger will charge the pack as if it were a massive 4s pack. At 30 charging amps, it would charge the 80% d.o.ded (i said that right, right?) 150ah 4s battery in about 4 hours. I acknowledge that the particular battery has a 5c max charge rate and that i'm not using its full potential but its cool with me because that charging time suits my needs.
The dangers of accidentally flicking the wrong switches at the wrong time are substantial, I know that. But I believe that if I invested enough time and money to design a professional switching system that ensures I never can accidentally leave a series switch closed while I close the open series ones, I will be fine. Plus i've got thermal bags
Btw I kind of don't like the bulk charging method as I think that these smart chargers pose less of a risk of failing and are better designed to charge those specific batteries.
. How long does it take to ship HK turnigy batteries? I am shipping them to the US not Canada where I live btw.
. Do you see anything major missing from my list (i'm sure there's something)?
. Does anyone see an overpriced item on my list? Please do tell if someone is selling them cheaper than I have listed...
. What do you think of my charging system #coolio or #outofhismind and #chargethatthingoutside and please comment about your opinion if you got one.
I will keep updating when I need to, thanks for your comments!
oh btw here is a pic of the money I got when I sold my 07 Yam ttr230 last week...it is kind of douchy but I never have had so much money in my hands at one time so I had to take a picture. And yes I did roll around in it. And don't come over here and rob my house expecting to get any; I have already deposited it in the RBC bank. All you will be met with is a golf club to the shins