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  1. Batteries and Charging
    Hello all. I work in a data center, and we recently replaced our UPS systems. As part of this project, I was given the opportunity to take the old UPS/ATS system home. Unfortunately, the system was a 3-phase 480 volt system and there was no means of connecting it to my 220v home power. I did...
  2. Batteries and Charging
    I'm looking into using a Tesla motor for a time attack car and are having questions regarding what batteries and how many it is going to require. My current plan is to use the batteries from a Chevy Volt to run the motor but I am looking for other options. The Chevy Volts battery bank is a...
  3. Batteries and Charging
    So I am looking to get 6 40v packs, each 18.4Ah. I plan to make 3 sets of 2 pairs, so I get 120v and 36ish Ah. Now I see a few chargers that are capable of this 120v charging for these lithium batteries, but they are fairly pricey. I was wondering if it was possible to use three 40v chargers...
  4. Batteries and Charging
    Hey everyone! I am currently working on a conversion and spotted these packs for sale on eBay. Now I know the dollar per kilowatt isn't that great on these, but I am trying to keep the costs low, so I plan to start out with a few of these for a proof of concept and then upgrade down the road...
  5. 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...
  6. Classifieds
    I am parting out (or selling whole if interested) an electric boat that is almost complete, there is a control system problem which might very well come down to a loose connection in a wiring harness. LOCATION is SF BAY AREA (Oakland) Video of boat - https://www.youtube.com/watch?v=rq-uGTXVDb4...
  7. Batteries and Charging
    Hi all, For my electric trike I had been using Lead Acid 48V 100Ah batteries which I now intend to replace with Lithium ion. I have two manufacturers near my place that have this type of batteries in stock: http://www.cnchaowei.com/en/upload/BN4820CI.pdf Would this battery be able to deliver a...
  8. Batteries and Charging
    Hello, I am the recipient of a 2009 Kandi Coco from a relative who purchased it due to the major tax credits and never drove it. It has the original Trojan T-1275 Plus batteries with a single point watering system. It has sat in storage after being drive off the lot. I recently saw the...
  9. Batteries and Charging
    Hello all, I've got a bit of a question. I'm looking to upgrade my battery pack to a home-made 18650 pack, but I know in the future I'm going to be doubling my voltage and upgrading the motor, controller etc. I can't afford to do this now, but I'm wondering if I can build half my pack now to...
  10. eBay EV-Related Auctions
    6 x 138ah 12v LiFeMgPO4 Valence Batteries U27-12XP 720 USD Cheap or expensive? http://www.ebay.fr/itm/262740921195?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 LiFeMgPo4 720 USD I am based in Paris, France and have a camping car for which I need auxiliary batteries and later plan to...
  11. New Member Introductions
    I need badly to see more charts and graphs and equations to help me understand the relationships between all these units of measurement I hear related to ev conversions. We need like a master chart for every known usable component on the market or in a salvage yard. starting with battery...
  12. All EV Conversions and Builds
    Hello, I am new here so if this thread is not in the right place my bad. I recently bought a 1992 Suzuki GSX with a bad motor with the intent to convert it to electric. I found a 5 kw 72V BLDC motor from golden motor used online for a very reasonable price. total i have spent around 400...
  13. Batteries and Charging
    Hey everyone, Here is my story, and my situation. (I will keep this part short) I have been working on converting a 1985 pontiac fiero for 9 years. 9 YEARS!! I know that is a long time but I wasn't going to give up. I actually ended up restoring the fiero because the further I dug, the more I...
  14. Classifieds
    Hey folks.**A friend and I are trying to resurrect a neglected electric car, unfortunately ~16 of the cells in the pack appear to be discharged beyond hope. The cells are ThunderSky TS-LFP160AHA.**Anyone have a tip on where we might find some used cells affordably? Alternatively we may swap...
  15. Batteries and Charging
    Before I begin I want to just clarify that I am new to the EV conversion scene. In fact, I am pretty new to car specifications in general whether it’s regular combustion or electric engines so please give me some slack when it comes to terms and all. I am a nooby. The other week I was looking...
  16. Batteries and Charging
    Does anyone have any expertise in working with lithium batteries and is willing to answer some questions regarding how to connect them to controllers and cell modules? We’re using 4 GBS 12V (4-Cell) 100Ah LiFeMnPO4 batteries, an EMUS BMS Control Unit, EMUS BMS Cell modules, and Emus BMS Control...
  17. Parts Vendors
    Hello! I am in China and have a friend who is looking for clients to export batteries to. Any potential buyers here? Next year, I will be buying some a123 20Ah pouches myself for an electric motorcycle project. PM me if you are interested! We can negotiate prices later.
  18. Batteries and Charging
    Hello - Obviously I'm new to the forum. That said, I am not new electric vehicles, mechanics, or electricity. I got stuck on the battery configuration, so thought to share my design and get some feedback. The battery bank makes the price of the vehicle go through the roof, so I'm looking...
  19. New Member Introductions
    just joined, so a short introduction. 35 yrs. in engineering, marketing, sales and quality in the automotive aftermarket/hot rod and EV industry. Was with AC Propulsion for several years, including working on the BMW Mini-E project. Continuing to work on my own in the EV industry - marketing...
  20. Batteries and Charging
    Volt batteries safe parallel Wiring I would like some suggestions on options for connecting Volt batteries into a safe parallel pack configuration. The pack will be for a golf/utility cart. The following are some specs I would like from the pack. 48V 200Ah approx. The physical size of 4...
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