Search found 313 matches

by CometBoy
Sun, 29 Jun 2008, 19:00
Forum: Electric motors and controllers
Topic: 72 volt motor choice?
Replies: 15
Views: 4883

72 volt motor choice?

Stupid question now Matt.... The spec sheet at http://www.everspring.net/product-battery-LFP90AHA.htm states: For the Model: TS-LFP90AHA an Operating Voltage: 2.5-4.2V and a Nominal Voltage: 3.2V In addition the following is given: - CHARGING For best charging, use special Solid State Lithium ion Po...
by CometBoy
Sun, 29 Jun 2008, 01:07
Forum: Electric motors and controllers
Topic: 72 volt motor choice?
Replies: 15
Views: 4883

72 volt motor choice?

I will talk to Rod early next week... I have checked the everspring.net site and looked at the data on the LFP90AHA cells - they seem best suited but think 18xcells@4.0v might be over of the budget this year. Looks like they would give me longer range (40-50km min maybe??) and at least 5 times the l...
by CometBoy
Sat, 28 Jun 2008, 21:39
Forum: Electric motors and controllers
Topic: 72 volt motor choice?
Replies: 15
Views: 4883

72 volt motor choice?

Thanks for that Matt, Yes I am familiar with the no no of mixing of batteries and the other lead acid issues. But I am trying to get my head around the current LiFePO4 products that are actual on the market. I have looked at http://www.zeva.com.au and data like http://www.zeva.com.au/tech/headway/ a...
by CometBoy
Sat, 28 Jun 2008, 20:45
Forum: AEVA SA Branch
Topic: Where are all the SA EV heads?
Replies: 79
Views: 10309

Where are all the SA EV heads?

Good luck with it Nick! BTW Just watched the movie/documentary “Who killed the Electric Car?” the story about General Motors lovely EV1 vehicle. If you haven’t seen it do so! (For you computer guys, there is a bit torrent for the movie or failing that contact me if you can’t find or download it and ...
by CometBoy
Fri, 27 Jun 2008, 13:37
Forum: Electric motors and controllers
Topic: 72 volt motor choice?
Replies: 15
Views: 4883

72 volt motor choice?

Thanks Matt, Yes, I think you are “spot on” with your calculations, given the light weight of the vehicle (kerb weight of 600kg) and only 162kg of battery weight. I was hoping for 20km. Based on its power to weight ratio I think this should be the case. The battery box will allow for twice the numbe...
by CometBoy
Fri, 27 Jun 2008, 03:20
Forum: AEVA SA Branch
Topic: Where are all the SA EV heads?
Replies: 79
Views: 10309

Where are all the SA EV heads?

I have no idea what’s going on!

Rod from Strath Steam in Goolwa (the electric car guy down there) forwarded the email about the meeting and asked if I was going??? First I’ve heard about it....

Thought you guys would know.
by CometBoy
Fri, 27 Jun 2008, 02:05
Forum: AEVA SA Branch
Topic: Where are all the SA EV heads?
Replies: 79
Views: 10309

Where are all the SA EV heads?

Image Sorry Don I see you have posted about this earlier!!!!!!!!!!!
by CometBoy
Fri, 27 Jun 2008, 02:01
Forum: AEVA SA Branch
Topic: Where are all the SA EV heads?
Replies: 79
Views: 10309

Where are all the SA EV heads?

http://forums.aeva.asn.au/smileys/smiley23.gif You guy know about this? ___________________ I am proud to announce the first meeting of the reformed Australian Electric Vehicles Association of South Australia (AEVA). The first meeting will be in association with the Alternative Technology Associati...
by CometBoy
Thu, 26 Jun 2008, 14:31
Forum: Electric motors and controllers
Topic: 72 volt motor choice?
Replies: 15
Views: 4883

72 volt motor choice?

Thanks for the useful advice Richo… The ADC 8” model 203-06-4001 (72 volt version) was my original choice but the $ made me look at the D&D product. I had thought the efficiency curve would have been better for the SepEx motor in the comparison. So I will forgo the regeneration feature in favour of ...
by CometBoy
Thu, 26 Jun 2008, 03:49
Forum: Electric motors and controllers
Topic: 72 volt motor choice?
Replies: 15
Views: 4883

72 volt motor choice?

Any Advice? I was just reviewing my choice of DC motors and perhaps I have under rated my need. My conversion project is a small light 2 seater Suzuki “Mightyboy” vehicle. It weights 600kg and has a load capacity of 350kg giving a gross weight of 950kg. I was planning on using a heavy duty version o...
by CometBoy
Mon, 23 Jun 2008, 00:24
Forum: Technical and conversion discussion
Topic: Clutch and Aux Battery Question
Replies: 1
Views: 633

Clutch and Aux Battery Question

I am in the final planning stages of a MightBoy conversion (using a 72volt D & D SepEx conversion from the US) is there any wisdom in still using the clutch and putting up with the extra weight? I would have thought only say 4th and reverse would be the only gears needed for 99% of the driving? Any ...
by CometBoy
Fri, 20 Jun 2008, 03:59
Forum: AEVA SA Branch
Topic: Where are all the SA EV heads?
Replies: 79
Views: 10309

Where are all the SA EV heads?

Thanks Don I would love a copy of what you have; I went through this about 3 years ago and gave it away in frustration. Let’s hope some common sense prevails now. I will contact Motor Registration before tomorrow night and see what the current view is. I was planning on using a donor vehicle that is...
by CometBoy
Fri, 20 Jun 2008, 03:26
Forum: AEVA SA Branch
Topic: Where are all the SA EV heads?
Replies: 79
Views: 10309

Where are all the SA EV heads?

Hi all.... Just found this great SA forum! I am also interested in a DIY EV project and would like to be included in your group if possible? I am an electronics guy that was involved in the original Flinders University Electric car project away back when (I think the car or maybe the van is up at Bi...