Search results for query: volts amps

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  1. Y

    How does Dynamic R series R50 controller Boost Amps & Volts?

    My mobility scooter has a Dynamic R-series R50 model, 24V 50A controller. My scooter has a 24V battery system. The controller has a Maximum Current setting 40A, plus Boost Current setting 10A for 8 seconds. How does controller (briefly) boost current +10A? Does it use a capacitor to boost the...
  2. T

    Battery Amps for 48 volts

    I'm looking for a backup battery for longer distance riding. I have a 48 volt motor and wonder if I can use a 10 amp battery. My primary is 52 volt 20 amp, looking for minimum size and weight so I can limp home. Thanking you in advance.
  3. Sparfuchs

    Less volts means more range, amps and torque ?

    Hello EV friends, We know that volts x amps = watts. But that means it could be 100v and 10a or 10v and 100a and you get the same watts but different motor behaviour. So if your bike frame allows space for 120 cells you have different options of parallel and serial connections and also the...
  4. B

    How to determine power (volts/amps) needed for top speed.

    I'm currently an armchair enthusiast looking to learn more about the relationship between a motors power and the controller driving it. For example if I wanted to put a Nissan leaf motor in a small SUV like a ford escape, I can calculate the rpms needed after the read diff. to get the top speed...
  5. liveforphysics

    Driving motors, more amps or more volts?

    moderator edit: this thread was split-off from an evolving discussion in the Emrax motor thread, found here: https://endless-sphere.com/forums/viewtopic.php?f=30&t=88884 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx I didn't realize I had a spokesman who preaches confusion in my name for me. If you...
  6. L

    more amps less volts or reverse

    hi im having 2 battery made 1 to ride 1 as backup or extra range. im slightly confused on setup hoping for guidance. firstly my bike setup is a 24" rim with 3000w DD hub with 60 amp controller. my cells are Panasonic ncr18650b 3300mah at 2c i have 200 of them to split between 2 power packs and 2...
  7. LI-ghtcycle

    High Volts Vs Amps and controller options

    Ok, I have used LiPo for years, and I just don't care for all the extra concerns/maintenance, so now that I am foraging into higher voltage Li-Ion, I have noticed a trend. It would seem lots high powered builds go to about 20 - 24s and then make up the rest in amps. Is it just not practical to...
  8. Bigbikebob

    amps, volts and top speed

    I am thinking to build a new bike and decided to dive deeper this time regarding the motor and Wattage :) I have read a few posts about volts/Amps and in my understanding volts are the pressure in the pipe and amps are the amount of "water" that are going via the exit surface aria of the pipe...
  9. motomoto

    So 1 volt at 1000 amps = 1000 volts at 1 amp...really?

    It seems that volts and amps are interchangeable? The math says they are as far as calculating power goes. When I look at the Astroflight chart it says all the winds make the exact same horsepower at the same RPM. With R/C racing or slot cars the lower turn motors were always faster and that...
  10. J

    More volts less amps ? Im slightly confused.

    So 5T mxus at 120v with 45amps vs 5T mxus at 60v 90amps. I would think the motor would be much hotter on the 90amp setup right ? On the grin simulator they heat up at the same rate ? power in = heat , but i would have thought the amount of amps would effect this. surely 90amps is going to...
  11. M

    Question - more volts or more amps ?

    Like everyone, I'm trying to get the most RANGE out of my battery pack which consists of (so far) 91 Samsung 29E batteries in a 13S, 7P configuration (at 45 kph - 28mph). Yesterday I was running a smaller 13S Panasonic test pack at the low end of its charge capacity and producing only 42V. It...
  12. A

    How important is volts vs amps?

    On a hub motor, what would be the difference between a 48v 40a setup when compared to a 72v 30a. They're both roughly 2000w (give or take a little bit). I from what I've read while lurking here over the last few months that higher volts lead to top speed and amps lead to torque, but I don't know...
  13. Seya

    Infineon- Possible to program amps@ X volts

    Im using a bafang 750 watt mid drive and a rear 500 wattDD hub with a single battery Hub will use an infineon 30 amp controller from em3ev. Can i adjust the amps to volts curve? Im looking to limit the hub to low amps while the middrive handles acceleration. Then the mid drive will shut off...
  14. teslanv

    Volts, Amps, Speed & Torque as they relate the DD Hub

    SO I have spent a bit of time here and on the ebikes.ca simulator (http://www.ebikes.ca/tools/simulator.html) and I think I understand the basics of how all of these concepts relate. Here is how I might try explain this to a "NOOB" : Concept 1: A Direct Drive Hub is configured with copper...
  15. boppinbob

    Changing volts and amps

    I have a sensor less HS 3540 with a 7240a Crystalyte controller and an APM display. You can change voltages and amp setting on the controller with the APM. I have 4 zippy 5s8Ah packs in series for 72v 40amps, which is what I normally set it to. Today I reduced the voltage to 60v and 30amps...
  16. BATFINK

    Lost in Translation - Volts and amps to series and parralel

    Hey guys anybody have a decent chart for reference when comparing voltage and amps to series and parallel packs. Thanks. Sent using Endless-Sphere Mobile app
  17. EVDragRacer

    Amps / Volts Dual Motors, Dual Controllers

    I know there are many engineers that post on this forum, maybe not all with EV experience, but my question relates to all DC Motors and Controllers. My two questions: Two DC motors connected by a coupler, but wired seperately. Each motors is wired to a seperate controller, so we have two...
  18. veloman

    Throttle control - amps or volts? (solar power too)

    Do throttles (hall) regulate the amps or volts the motor pulls? Is it some other form of regulation? Well, it most convert something... But anyway, to change 'gears' a bit, So I'm thinking of wiring up about 140watts of solar cells to my bike. It will have 40volts and 3.5amps - realistic...
  19. K

    Volts Times Amps = WHAT?

    Math is GOOD! For all the noobs ... Think of your motor as a "black box". Think of your controller as a "black box". Think of your battery as a "black box". Then just use ONE simple rule ... VOLTS x AMPS = WATTS. Topics to discuss ... motors controllers batteries :roll: A...
  20. R

    Cyclone 1500 watt at 48 volts 35 amps > 60amps

    Just rigged my kit up and guess what..... I have a Motor Bike.. I will write a bigger review soon but just a quick note for everybody thinking of using the cyclone kits YOU NEED A 10C RATED BATTERY TO DISH OUT 60 AMPS PLUS CONTINOUSLY. A MOTORBIKE HELMET AND GLOVES, A SKI MASK SO KNOWBODY...
  21. ryan

    Amps vs. Volts clarification...

    In general, if one adds Amps to their battery pack, what should they expect to change? In general, if one adds Volts to their battery pack, what should they expect to change? Assuming one could travel 50km a consistent 30kph (unassisted) on level ground with their current battery pack, how far...
  22. Kiwi

    Volts or Amps. Wheres the fun at!

    Here is the scenario. You have 2 36v packs with a continuous discharge rate of 30 amps. (we can ignore ah and max discharge for this exercise). Now, we could run them in parallel, 36v capable of 60amps continuous. or, we could run them in series 72v at 30amp continuous. Either configuration...
  23. A

    volts/Amps...help with different efects.

    I have been thinking about the build I'm starting and am wondering the effects of raising volts and amps.specifically what would be the difference between raising the volts Vs amps.Say I'm running 48 volts and 40 amps vs 72 volts 20 amps.Mainly i am curious as to what diferent effects it has on...
  24. safe

    Volts, Amps and Efficiency

    Volts, Amps and Efficiency This is more or less a basic information thread for most of the old timers, but a nice little review for some. All these charts are for a standard Unite 250 watt motor. What I'm doing is showing that the SAME MOTOR can have very different behavior depending upon how...
  25. truckerzero

    volts and amps on a stock crystalyte 4110 controller

    just wondering how many volts and amps i can run on a stock 72 volt 50 amp crystalyte controller from ebikes with the 4110 fets already in it?
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