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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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    Variable Power Supply and MPPT for charging LifePO4 bank

    I have not made much progress, hopefully over the next few weeks.
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    the easy way to keep your cells balanced is...active balancing

    This where my understanding of electricity gets hazy. By my understanding a resistor is a load and therefore theoretically would not short. However I presume a low value resistor is really not a load at all and this is when a short occurs. I'm sure there is some fancy math to determine when a...
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    the easy way to keep your cells balanced is...active balancing

    Ok so this is what I am thinking of doing 16S pack Connect all positive leads of active balancer to each cell (Sam as BMS) Connect negative lead of cell to resistor I have a 6.8 ohm at hand. Is that too low Connect negative lead to battery Let me know if this sounds right
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    the easy way to keep your cells balanced is...active balancing

    Can you share details of how you pre-charge the capacitors. Did you use a power supply and what value resistor? How did you set up the wiring?.
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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

    Mike, How would a a battery charger be different and provide a better alternative? I imagine a battery charger would also have a a hard time determining SOC.
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    Diode for Charging

    Hi Mike, I'm intending to use it as a battery charger as I like if for the following Reasons 1) You can set a high voltage cutoff independent of the use selectable high voltage 2) I intend to use it to charge my 48 v to power my yacht motor. As such I want to be able use it to top the...
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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

    So what is the best way to top balance based on this understanding?
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    Balancing Questions

    Im using a Xantrax XHR 20-50. Max Amps is 50. Batteries are 200AH with 1C. Am I right in that .2c would be 40 Amps multiplied by 20 batteries = 800Amps?
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    Balancing Questions

    Makes sense, thank you
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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

    I'm gonna assume it should be white and move forward, thank you
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    24S ANT BMS wiring for 16S

    Yup. Anyway to check what it might be for?
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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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    Variable Power Supply and MPPT for charging LifePO4 bank

    Ok so I have a further question I have been testing a Xantrex Power Supply. You can set voltage and current as well as activate the over voltage protection on the power Supply. Why would I not just use this as my charger. Do I need an MPPT or PWM at all?
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    Capacity test Problem

    Thanks, this is a good lesson in importance of good connections
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    Capacity test Problem

    So it looks as though the culprit is my connection at the cell. See voltages below on Display = 3.06 at Load tester terminals =3.168 At Battery-on top of connectors = 3.188 On Battery Terminals = 3.275
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    Capacity test Problem

    Mine seems to disconnect at 2.6 v
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    Capacity test Problem

    Images below. Wire is 12AWG
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    Capacity test Problem

    It was on display. Voltage at battery was about 3.2V
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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

    Thanks Guys. I will digest and let you know if I have more questions
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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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    Power supply and an mppt VS a dedicated ac lithium battery charger?

    You do you dude :) I have no skin in this game, Moderator please let me know forum etiquette.
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    Power supply and an mppt VS a dedicated ac lithium battery charger?

    Down Karen :) Similar question, prevents multiple threads, Don't be that guy
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    Power supply and an mppt VS a dedicated ac lithium battery charger?

    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)
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    Cheap charger destroyed the $1,699 renogy battery

    Can you send me details of your setup? What 60V 8A power supply did you use?
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    Capacity Testing Starting Voltage

    Awesome, thanks, that's what I thought
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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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