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  1. T

    Knocking a battery pack together on the cheap

    Dogman You have helped me before thank you. I need a new battery for my fat tire off road bike. I wanted to know if LIFEPO4 is a good option. I got a Mxus V3 DD motor and a power velocity 18 mosfet programmable controller. Battery current up to 70a and phase up to 200a. My current battery is...
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    Controller 60a or 80a Recommendation Advice for Build

    Thank you for the reply The Kelly Controller KLS7218S has configurable motor temperature range (4) and the motor has a white wire for temp probe. http://kellycontroller.com/kls7218s24v-72v200asinusoidal-brushless-motor-controller-p-1401.html This should be OK for my needs without the need for...
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    Controller 60a or 80a Recommendation Advice for Build

    Here is what I got and here is what I am trying to do. I got a fat tire build with 20s 4p 26650 cells. The BMS is 40a continuous 120a peak. The motor is a Mxus V3 3000w- 5000w 4T. I am on my third no good controller. Don't ask. I am currently running it on a Luna Cycle 72v 40a Cyclone...
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    60A bluthooth controller Help

    Got the link Luna Cycle Cyclone 60a Blutooth Controller made by Yuyang King https://drive.google.com/file/d/0B9KXttJ6nbz6Zk1aMnA1S19fZzQ/view
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    Parallel Two 72v 20ah Battery Packs Increase Amps Available

    Thanks I'm done with chinese controllers. Next one a kelly. I got a luna cyclone 60a coming and currently running the bike on a luna 40a controller. The bike needs a little more power thru deep sand. Maybe this will do it. Otherwise Kelly. We will see. I got the blutooth app installed on...
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    60A bluthooth controller Help

    I need help accessing the programming features. I downloaded the XPD opensource files but can't get the program to open. Any help would be appreciated Thank you
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    60A bluthooth controller Help

    Did you have any luck with this controller. I have the 40a controller and just ordered this one for another bike. Please let me know.Thanks
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    Parallel Two 72v 20ah Battery Packs Increase Amps Available

    bill von Your right both volt meters read the same. One was 79.8 one was 80.1 before plugging them into controller in parallel then both read 80.1. I thought with the connection right out of the batteries I would get the volt readings before the Y harness in parallel. Wrong. Hopefully the new...
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    Parallel Two 72v 20ah Battery Packs Increase Amps Available

    That 80 amp huge controller got to be shit hesitant at start, motor makes wierd start noice motor gets hot and not pushing it Well guy I fired it up. 1st issue seems throttle a slow and hesitant at start of then power up smooth . Throttle the whole time The motor seemed to make a weird wind...
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    Parallel Two 72v 20ah Battery Packs Increase Amps Available

    Thanks The cable lengths are the same and the meters are wired directly to the batteries before the Y connection. It should give me a correct volt reading correct ? Dogman a watt meter ? I got to look into that. Above my pay grade for now. But for now we are going to fire up what I got this...
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    Parallel Two 72v 20ah Battery Packs Increase Amps Available

    dogman dan With your previous suggestion I ordered a second voltmeter and I am mounting both on the handle bars one for each battery. I have used these before they are great cheap and put out a cool blue neon like digital light that looks hi tech. I recommend them Check it out...
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    Parallel Two 72v 20ah Battery Packs Increase Amps Available

    At this point we will find out soon. I think the motor can handle it. Gut your right we will see if A pulls More than B etc. I tried to eliminate that possibility. One battery is about 5 mos old and has probably 75 charges. The other one is new. Here is the controller it is huge and heavy...
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    Parallel Two 72v 20ah Battery Packs Increase Amps Available

    Dogman and Sonder Thanks. Alright one more reply please Lets keep it back to basics simple KISS. From the start I almost had my goal with a single battery and a little shitty 72v 40a probably 12 fet controller. 3000w motor The 2.5 in hookworm tires would sink in the soft sugar sand and me...
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    Parallel Two 72v 20ah Battery Packs Increase Amps Available

    voltron and dogman dan We are almost there. i want you guys to understand that both of these packs are identical and both have a 40a continuous bms. I want to hook them together paralley to power my bigger controller. 80 amps. Are the amps cumulative with the bms or is the bms going to hold...
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    Parallel Two 72v 20ah Battery Packs Increase Amps Available

    I am getting mixed answers about combining two battery packs. I have two 72v 20ah with a 40a continuous 120a instant BMS. They are 3.7v 26650 5000ma LiNiMnCoO2 cells configured 20s 4p. I want to power a 24 fet 80a controller. I want to connect these two packs in parallel to give me more amps...
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    How to connect ignition wire?

    I know this is a old post but I am in the same situation now about how to connect the ignition wire. I have a chinese minimal instructionws and bad wiring diagram that matches some wires while others are not listed at all. All labels in chinese. It is supposed to be a 72v-120v 24 fet 80 amp...
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    New Hi Power Off Road Fat Tire Build Need Advice

    We will leave the 26" wheels since they are already built. Now I got to figure out where to mount the second battery. Hopefully I can construct some sort of mount to fit inside the triangle. Both in the back is too much. Thanks for your advise I will let you know how it turned out and send a...
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    New Hi Power Off Road Fat Tire Build Need Advice

    Thanks for the reply Here is my scenario with the links for motor controller battery or two batteries Advise or Opinion greatly appreciated My current bike 72v 40a controller 3000w motor with 2.5 in balloon Maxxis tires was struggling to power thru the soft sand. It was almost where I needed...
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    Fat Tire Hi Power Off Road Spec Opinion or Advise

    Mistermnt That is a good idea I thought of that but I can tell from my current bike 72v 40a controller 3000w motor with 2.5 in balloon Maxxis tires it was struggling to power thru the soft sand. It would bury deeper and require more power to pull thru it. If this bike was like The bike can...
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    New Hi Power Off Road Fat Tire Build Need Advice

    MadRhino Thank you for your reply. That was my concern too. The battery. Here is what I hope will happen. I not talking plowing up and down sand dunes just patchy sugar sand places on trail 50-100 yards. I plan to use use the extra power to get momentum thru the stuff, some float speed , then...
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    Fat Tire Hi Power Off Road Spec Opinion or Advise

    Thanks My concern was a mid drive and or chain would get hung up on brush tall grass sticks logs etc. Second issue in Florida is water.The battery / controller on my bikes is stored high in a rear rack waterproof lock box. The rear DD motor and axle is sealed with rubber silicone...
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    Planning my first build, lightweight + 1000W double-torque

    I do not know if you are done yet but I have used this motor kit mfg before with very high quality and works perfectly. Great customer support. Ask for Jun Liu. It is 1500 watt and the controller is 45 amp. Great LCD display. Plenty for your desired top speed and 50 % more hill climbing power...
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    Fat Tire Hi Power Off Road Spec Opinion or Advise

    Need advise or opinion please read. You guys are the experts. Not me. I am building a new fat tire hi power off road machine. My goal is to have enough power to tackle most terrain including Florida sugar sand. I want to be able to get deep in the woods for hunting and possibly pull a hog out...
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    New Hi Power Off Road Fat Tire Build Need Advice

    Need advise or opinion please read. You guys are the experts. Not me. I am building a new fat tire hi power off road machine. My goal is to have enough power to tackle most terrain including Florida sugar sand. I want to be able to get deep in the woods for hunting and possibly pull a hog out...
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    greentime controller 24 fet 48-84v 65a Need Wiring Help

    I am at a loss I hooked hall phase throttle battery little green stripe to main batt positive cant seem to get it to turn on. It seems I got 78v going to it and tested phase at first got power there cant seem to get power thru throttle or hall red black now seems no power going to phase. I'm...
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