Charger Inbound

After a few months of searching, I finally have purchased another key to the puzzle. The charger for the batteries. I talked about this in my post before this, but I am taking a bit of a different approach to begin. 

I ordered the 72 volt 12 amp Delta Q Qui-Q Charger. Now this might sound odd, as I am going for a 144 volt system. Well the nice thing about this is it’s perfectly half of my total end goal voltage, meaning I can hook this one up to half of the battery pack, and purchase a second one down the road for the other 6 batteries. This allows me the flexibility of starting off at 72 volts and saving the extra cost in doubling the battery system, mainly to validate everything works and get a moving car. Once I get to that stage, I’ll be much more comfortable investing in this all over again and getting it up to it’s full potential. 

That has been the whole premise of my research regarding this build, is how to do it in stages that involve the least amount of changing parts. So I can buy inexpensive lesser options over time and slowly build up to my final goal. And so far, it seems like that will work perfectly. 

And this charger runs on both 120v and 240v, so I am currently concocting a plan to allow the car to adapt to multiple charge ports. One for 120 AC wall power, like a normal extension cord, one for 240 volt appliance home power, and then a J1772 connector so I can charge at local stations, as they just run on 240 volts as well. I am basically designing the USB-C of charge ports. 

I could buy an EVSE charging station for my home and just install a J1772 port on the car, but the issue arises if I am ever at a friends house and need to charge up. I would have no way to plug it in at their house without buying another portable EVSE cable, all of which are hundreds of dollars. My design should be accomplished through just simple Home Depot wiring tools, and maybe a $50 J1772 port from or something. Who knows, Alibaba might even have it less expensive. 

Either way, almost every large component is purchased. And I potentially have the controller being rebuilt, so when that’s all said and done, we should be in a great spot. More to come!

About the author

Jameson Toper

I am a Computer Science Student at the Rochester Institute of Technology, and I have a strong passion towards the field of electric vehicles. When I am not working on this project, I teach a Computer Science course and make music.

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  • for god’s sake don’t invest in lead acid batteries, even the cables will be stranded assets, they work fine but only for 2 years, ask me how I know. for the same money you can get a salvage Chevy volt battery or Nissan leaf battery on e-bay.
    the leaf battery will be more degraded then the volt battery which hold up much better, and will likely give you those amp your looking for.
    but the leaf battery’s are really easy to work with, check out wolftronix on you tube,
    I have bin driving an old conversion since 2010, and regret the three years I used lead. I have Nissan leaf batteries now and will upgrade to volt batteries soon, so I can also get thermal management and longer lasting results. also your math fails to account for voltage drop under load, if you pull 1000 amps your voltage will drop and watts should reflect this, you will find lifting slightly off the accelerator will return some voltage and lower the amp load, but give you the same watts, I call these free watts as the stored medium is the “amp hours”
    please do the engineering needed to get you a clutch, LOL
    life is better with one.
    david b

  • I’d only like to add:
    I currently drive a 2013 nissan leaf I got 1/28/2017 with 39,000 miles on it
    an SV trim with everything!
    for only $7,995.00
    conversions are fun, but you might spend more and end up with less.
    yes I still have my 84 and 86 chevy s-10 conversions. but have more money sunk in each than in the leaf.
    something to consider

    • Hi There,

      I’m very curious about your S-10 conversions. Do you have any resources you used that you can recommend? As you pointed out, there are many new vehicles that can be purchased for less than a conversion, but this one has a fairly tired (albeit, fun) V8 and I have quite an attachment to the truck.

      Many thanks!

  • Do you have a second 72V Charger? I have one if needed.

    Also PM’d you on DIY, I’ve got a 144V charger you can have free.

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