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  1. New Member Introductions
    Hi, I'm an older guy with lots of electronics experience, some solar experience and 2 electric cars. I'm looking for help solving the following global environmental problem, starting with our own little problem: Sounds simple, and done-that-already, but it's not, unless I'm just wrong, it's...
  2. New Member Introductions
    I love electric vehicles but I have never had one. I have often thought of building one someday. For the last 7 years, I have been on the road full time in a diesel sprinter RV - currently I've been camped in a nice spot for a few weeks to a few months. I started looking around for a vehicle I...
  3. All EV Conversions and Builds
    I've not spent much time lurking, apologys for that. I've got a tragic wagon named Putt, it can't pass emissions anymore, I want the car to be part of the house's battery bank and charge system. There's room on the roof rack of the car for 1kw of solar panel. (house is already solar) I...
  4. Classifieds
    Valence Lithium Battery U27-12XP | 12V 138AH 1.766 kWh. Condition is Used pictures are provided to show quality of battery. These batteries weigh about 40 pounds each and shipping can be arranged via courier service, delivery from me or you can opt for the fedex delivery. Contact me for...
  5. All EV Conversions and Builds
    Y'all, I live down here in New Orleans. My Daisy is a 2004 New Beatle. I am her second owner, and her first owner is Chaya owner of Bywater Bakery. Sometimes parts fall off of Daisy, LOL, but she drives soooooo good. Never gives me trouble starting. No trouble with this girl. I want to ride her...
  6. Batteries and Charging
    Hey DIYEVers, I need help/direction with my project kicking off this summer 2018. If you visit my projects webpage you will find most of the details for where the project is standing, which is all just plans at the moment. Currently I am looking for professional/experienced DIYer help to...
  7. All EV Conversions and Builds
    I would like to use [this](http://www.evwest.com/catalog/product_info.php?cPath=8&products_id=297) motor to run my jeep. I don't know how the voltage works for these motors and have not been able to find information on what to do for a battery. Do I need a battery capable of outputting 360v to...
  8. Batteries and Charging
    So this is not a car but it is the same concept. I am working on a solar powered boat for a competition and am looking at batteries. We are limited to 100 lbs of lead acid batteries so i am trying to get the most power for the weight. I was wondering what the difference between a cheap battery...
  9. All EV Conversions and Builds
    Hi everyone, I've been fantasising for some time about the possibility to convert a diesel powered boat into a series hybrid, using a diesel generator and a LiFePo battery pack connected to an electric car motor. It would be a semi stationary live-aboard, so run time requirements are pretty...
  10. Batteries and Charging
    Hello all, I am hoping I can get some info./assistance/guidance from some of you kind and knowledgeable folks... I do realize this is an EV forum, but I know you can still give me good advice. THE SHORT: BALQON = NO USER MANUAL or USER GUIDE = NO COMMUNICATION = MY 27kwh LiFEPo4 Battery...
  11. Classifieds
    It solar-charges and drives but it still needs work and I'm out of time: -Headlights, brake lights, and turn signals are not hooked up yet -Something about my design is flawed; either the motor, the controller, or the battery pack is underpowered so it only drives on flat ground. It's a simple...
  12. Batteries and Charging
    Is just impossible to find a BMS for LiFePO4 so I decided to design one for my Off Grid house. It is specific for my needs so max 8 cells in series and can use solar PV panels up to 40A to charge the battery. I have 8 cells 100Ah GBS not that great in therm of discharge rate but more than enough...
  13. Electric Motors
    Dear all , I am trying to build dual axis solar tracker . I need help to select proper guide motor relevant motor driver. 1)Selection of worm gear boxes. what are points it included for selection. 2) selection of motor like linear actuator, stepper motor, dc motor, servo motor etc 3)motor...
  14. Technical Discussion
    Hi! I'm new to this forum. I signed up because I have an idea, but I need help figuring out if it will even work the way I would hope. My idea is to build a solar-electric powered sheep wagon, such as the one pictured below: The reason being, I love the idea of camping in one of these, but I...
  15. All EV Conversions and Builds
    I converted a 13hp gas lawn tractor into a electric forklift:) I installed a 2hp 36v motor and electric winch, I can remove the forklift attachment with only four bolts. Forklift can lift up to 500 lbs 54 inches. I charge the forklift with solar panels and wind generator. link to video...
  16. Batteries and Charging
    I'd like to convert my geo metro hatchback. From what I've read while it is a light car it is not necessarily ideal since it can not hold as much battery weight. I've read that the tesla uses 6000 or so aa similar lithium batteries. Why can't I use 1000 -1500 or so little AA lithium...
  17. eBay EV-Related Auctions
    As also posted on eBay: The Nomad is a light weight solar powered pleasure boat for 4 to 6 persons (3 rooms) measuring 14.90 x 5 metres with a height of 3.30m and draught of 1.30m. The living room has ample space of 27 m2 and extends under favourable weather conditions to 37 m2. A panoramic...
  18. All EV Conversions and Builds
    Hello everybody, I am new here.... I am a 2nd Year Automotive Engineering Student in India. I am planning to build a Solar powered Electric Vehicle as my Project. I dont know which motor should I use or how large a solar panel would I need. The Details i am sure about are as follows: 1...
  19. Electric Motors
    Hi All! So I'm building the 2nd version of my Alternative energy showpiece vehicle, know as Sustainable Sound or lowRes (for low resource). (sustainablesound.org) It's an electric vehicle with pedal power and solar generation. for various reasons the drive train is electric. Last year I had...
  20. Technical Discussion
    I want to put some solar cells on my EV (120V VW) to charge the accessory battery. However, the Acc Batt doesn’t need much charging since I don’t often drive at night, so it’s just running the contactor and blinker/brake lights. I would like to create a switching charger that will use a bunch...
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