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    Ant BMS short circuit error

    Guys I am using an ANT BMS with a 18 AMP 48 V battery pack to drive a 1000 w bicycle motor. If I start and run the motor in the air I have no problem running it. However when I sit on the bicycle and try to power up my BMS errors out with a short circuit message. (And no comments about me being...
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    FM Antenna

    OK, you are a bunch of smart techies, I have an old radio in my office that has a really lovely sound to it. Unfortunately the FM reception where is is sucks. Can anyone recommend some kind of way to boost the FM signal without having a bunch of cords lying around. All advice appreciated.
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    ANT BMS Setting

    I need help with My ANT BNS Settings. Specifically these 2 screens. One is the connect resistance and one is the Hall speed sensor. For the resistance I presume I shoudl measure each cell and use that or use the spec supplied by manufacturer. On the hall sensor I have no idea All help appeciated
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    Diode for Charging

    Guys, I would like to put a Diode in series for charging my 48V Bank. Charger will be a Xantrex XFR 60-20 pushing out 20 Amps. Can anyone give me the specs of the diode I should use ?
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    Balancing Questions

    Couple of novice questions regarding balancing 1) Im balancing 20 cells in parallel. Surely the voltage at the furthest terminal from my power supply will end up with less voltage due to resistance on my busbars. How do i solve for this? 2) Related to this, how tight do I need to make my...
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    24S ANT BMS wiring for 16S

    Guys, On the ANT BMS the left hand balance connector has 10 white wires and 2 red wires. The right hand one has 1 black and 13 white. This gives me a total of 23 white. I know that the black is the neg and the final red is supposedly power for BMS. I'm presuming the second to last red is the...
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    Capacity test Problem

    So I charged an individual 200AH Eve cell to 3.595 volts to do cacity test. I used the cheap tester as tested by Will (I've used it before so I know it works) Connected my battery and then attempted to run test. As soon as I tried to increase the amperage it dropped the voltage to below 2 .6v...
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    Eve cell busbar optimal connection

    Good Morning Everyone. One of my anticipated hurdles in the build of my marine bank is the tendency of the Eve cells connections to strip upon assembly. Here is my plan for assembly. Comments appreciated I am going to use Loctite Threadlocker 272 to install 20mm studs into batteries. Tighten...
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    Variable Power Supply and MPPT for charging LifePO4 bank

    Im building a 200 Ah 48v supply for my boat. I want to use the following to charge it. Does anyone see any issues? Power Supply =Xantrex XFR 60-20 DC Power Supply (60v 20A adjustable) MPPT = Victron Energy SmartSolar MPPT 100V 20 amp 12/24/48-Volt Solar Charge Controller (Bluetooth) Main...
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    Capacity Testing Starting Voltage

    Guys I just received my shipment of 202 AH cells from Xuba and I want to capacity test using the tester Will lays out here. Question is I cannot find out at what SOC or voltage on the battery I should begin the test. Can anyone help? All input appreciated
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    Draft Schematic-Please give input

    First Draft of Schematic. Using Lishen 202Ah. I decided to go with the BMS only actively controlling the charge side of the circuit and opted for passive monitoring on the load side. Using a victron 712 for monitoring and hopefully can connect it to a relay to shut off charge circuit at...
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    Cell Redundancy

    Im building a 16S 200AH bank to power my yacht electric motor. I have bought a few spare batteries to keep as spares. I was anticipating building 2 12v house banks out of these and then if I have a failure in one cell in my 16s bank I can break apart the house bank and use a spare. Obviously...
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    Optocoupler/SSR recommendations

    Looking for an optocoupler/SSR that has a control voltage upper range of 60+ volts and a load voltage range of around 24 volts. Needs to handle surge of about 1.3 amps on load.
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    Coil Economiser Help

    Good day everyone, need help from electrical guru's I am looking at using a TYCO EV200ADAANA contactor with a BMS to allow the BMS to do a high current break on my electric motor . Only problem is I believe i need a coil economizer to stop an EMF backflow and reduce current consumption to...
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    BMS Question

    I need a BMS capable of handing power for my yacht motor (10KW). All the reasonably priced good quality ones recommended seem to tap out at 100A (eg overkill). My other alternative is to go with a Daly or similar or drop a lot of money Is it possible to go with an overkill and run the l BMS...
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