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  • Post in thread: JBD 4S 200A BMS

    To be honest your confusing me. you applied a load of 124 amps. that's a discharge, so why would you expect it to cut out at 3c? thats a charge cutout, not a discharge cutout, they are different settings. on the 3rd attempt you were at 11c, I believe(don't quote me) the default low cut off for...
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    to each their own. I find cash and checks a royal pain, my ccs autopay, and i get a documented breakdown of everything i bought, and i get a decent amount of cash back a year.
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    thanks Mike, i think its pointless for me. I'm looking at an RV, I will never hit these cycle counts. will prolly run 95-5 to be honest. even if i get 500 cycle It will prolly take me years. Jenny is talking to me in PM now, thanks everyone
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    Thanks for the quick response, how do you determine if you get the higher cycle count and weld studs? just ask her as well?
  • Post in thread: JBD 4S 200A BMS

    does anyone know the max amperage of the heating option? and what heating pads are most people going with?
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    did you do the catl or the 304 cell? what carrier are they using?
  • Post in thread: JBD 4S 200A BMS

    can you link your pads please? and do you know if these would work as well...
  • Post in thread: Thought I understood LAB charging, guess I don't

    how is that any different then a ac or microwave load?
  • Post in thread: JBD 4S 200A BMS

    Doesn't that make the heating function useless? Why are there 2 toggles then Think about this, the only time you need heat is when your under freezing. but then you can't use the battery? so say it hits 32F i want charging to turn on on heat and go up to 40F etc. So I need to go in and and...
  • Post in thread: JBD 4S 200A BMS

    looking at this more, it appears based on the pc tool, there are 2 fets, a charge section and a discharge section https://cdn.hackaday.io/files/1628066965491904/User%20manual%20for%20v1.1.pdf page 4 and 5 show this separate charge and discharge setting?
  • Post in thread: Thought I understood LAB charging, guess I don't

    the agm battery is prolly 8+ years old at this point its a blue top optima. I may have saved it a bit. ( im struggling to buy another agm or go down the life path) not sure what to do yet. I think i woke it up, from being hooked in parallel to another agm, which almost had thermal runaway. that...
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    credit card fee or no?
  • Post in thread: Heltec (JK) 200A Smart BMS with 2A Active Balance

    Does anyone know if the 8s model will run at 4s?
  • Post in thread: Electrodacus: are my expectations unreasonable?

    honestly i rather a robot build it, if you think they are matching components your nuts, prolly the lowest paid guy builds them, with a build sheet, and if its a Friday, his work is prolly 10 times worse.
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    can someone explain shipping to me. they both show 80 dollars for me if i pick china or usa
  • Post in thread: First battery build and props to Jenny at Docan Technology

    where did you get your flexibars from, and what did they cost?
  • Post in thread: Thought I understood LAB charging, guess I don't

    I guess I will throw a clamp on meter on it and see what it says.
  • Post in thread: JBD 4S 200A BMS

    So I understand this correctly, the battery will disconnect at the under temp? in discharge mode? that makes no sense, should be the cutout temp. discharge shouldn't matter, I thought @DJSmiley confirmed nothing happened, only special things happen at charge, not discharge
  • Post in thread: DC-DC Converter instead of DC-DC Charger

    for lithium its simple, set what ever voltage you want to charge too and be done. you don't need stages. it will start CC to CV. its an extremely simple charge setup unless you want bluetooth, the other unit has no connectivity just a pot to adjust voltage.
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    is there a higher cycle count in the 300 304 etc? thanks for the rest of the info
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    do you guys know if they are selling the jbd200 bms yet ?
  • Post in thread: New 200 amp rated JBD

    any updates guys? figure out the heating app, etc?
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    @Jenny Wu Can you give me a quote for 4 300/304 cells to zip 18411, both via usa and china, and a rough eta for delivery for both?
  • Post in thread: DC-DC Converter instead of DC-DC Charger

    In a vehicle setting though, when is there every 0 load. i read this alot and when i did my rc stuff it made sense since there was only a battery, but my RV is never at 0 load, literally impossible unless i disconnect it, and if i am running the engine, I have other systems running.
  • Post in thread: New 200 amp rated JBD

    so has anyone tested the heating? its configurable through the app? wiring seems confusing between documents, some show the connector side + and -, but then there is that separate negative pad?
  • Post in thread: JBD 4S 200A BMS

    cant you just use a volt meter and ohm the connections and see if they disconnected?, how are you testing it now? a psu?
  • Post in thread: JBD 4S 200A BMS

    what kind of wiring do you have going up to your start battery. Pretty much going to guarantee your not going to see 560A through whatever wiring the motorhome put in. mine was 4 gauge. Hold the button for 30 seconds, it will recharge it. why is your chassis battery going to be stone dead in the...
  • Post in thread: JBD 4S 200A BMS

    Does anyone know if they make a bluetooth monitor that works with these jdb BMS, I'm not a huge fan of having everything tied to a phone.
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    the heated optioned one?
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    this is shipped to your door via what carrier?
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