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  1. M

    ?'s related to switching from JBD 120 to 200 bms

    can you provide links or something?
  2. M

    New 200 amp rated JBD

    guys how have these been working out? I have a camping trip this week and may go down this path if the battery doesn't last.
  3. M

    New 200 amp rated JBD

    that does seem like quite a step back. I wonder if they were getting returns due to breaking the tab off the board
  4. M

    Thought I understood LAB charging, guess I don't

    Yea it is, I had a bad mishap the other day, almost lost the rv to a fire, so this has been side barred for a bit. yea its expensive, I spent over 500 just for a suppressor and autoformer for ac power so i hear ya. i just don't know how much we will use some of this stuff. 6 times a year is...
  5. M

    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.
  6. M

    Thought I understood LAB charging, guess I don't

    how is that any different then a ac or microwave load?
  7. M

    JBD 4S 200A BMS

    can you link your pads please? and do you know if these would work as well...
  8. M

    JBD 4S 200A BMS

    does anyone know the max amperage of the heating option? and what heating pads are most people going with?
  9. M

    Thought I understood LAB charging, guess I don't

    im getting a 200 amp bms, i think they surge to 400, i doubt the starter comes past 100. i am considering leaving in a crap 24 group flooded, and just isolate, also trying to decide if i care enough to get the alternator connected in the new place as well. we only camp for 4 days on average. if...
  10. M

    Thought I understood LAB charging, guess I don't

    its for an rv class c, one battery inside on out, so agm is easiest. the 230ah models with a bms are only about 100 more then the 2 agms, and it gives me the equivalent of 3 agms. looking at Xantrex Freedom XC 2000, but also may need dc-dc charger for engine. IDK its a ton of work to...
  11. M

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    may i ask how you contacted them, I would like to ask if they have this model.
  12. M

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    https://diysolarforum.com/threads/jbd-4s-200a-bms.27012/ not this one?
  13. M

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    the heated optioned one?
  14. M

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    do you guys know if they are selling the jbd200 bms yet ?
  15. M

    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...
  16. M

    Thought I understood LAB charging, guess I don't

    this is what i understand https://chargetek.com/basic-information.html amperage goes maxxed out, until it hits voltage cutoff, then it tapers amperage, until it goes into float/storage mode. I have never seen a battery drop the amperage before the voltage reached the set point
  17. M

    Thought I understood LAB charging, guess I don't

    Chris, I don't want to come off like I am fighting you, but you need to help me here. the charger will push the voltage higher, if the battery doesn't want amperage the voltage will just climb. i have seen this multiple times with my other chargers, it goes to 14.4 etc then the amperage starts...
  18. M

    Thought I understood LAB charging, guess I don't

    if it was the resistance, then why isn't the voltage shooting up then? I understand voltage will not match battery terminals, but why is the amperage dropping while the voltage is still low like at 13.6 volts? i can force my charger modes, it was not dropping out of 14.4, had a meter on it the...
  19. M

    Thought I understood LAB charging, guess I don't

    so this has got me perplex. i have a 3 stage pd92145 battery charger that can do 45 amps. it is connected to a single agm battery about 15+ feet away with roughly 6 gauge wire. there is a shunt wired in on the negative side. chargers are cc to cv i understand this my issue after diagnosing a...
  20. M

    JBD 4S 200A BMS

    what size wire is running from the alternator to the battery's? and how far is it?
  21. M

    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...
  22. M

    JBD 4S 200A BMS

    prolly missed it somewhere, but does anyone have the manual?
  23. M

    JBD 4S 200A BMS

    that looks pretty nice, Looks better then mine, but at the end of the day I only really need to see how power is left. even though yours is even cheaper then what i paid.
  24. M

    First battery build and props to Jenny at Docan Technology

    oh i see you cut them and drill them? what did you drill them with?
  25. M

    JBD 4S 200A BMS

    appreciate the link i use one of these https://amzn.to/3268Zti actually sell a surface mount box for it, do you know if they offer a bluetooth version? but yea your comment makes sense, i figure i shouldn't need to touch it.
  26. M

    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.
  27. M

    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.
  28. M

    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.
  29. M

    First battery build and props to Jenny at Docan Technology

    where did you get your flexibars from, and what did they cost?
  30. M

    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
  31. M

    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.
  32. M

    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.
  33. M

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    credit card fee or no?
  34. M

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    did you do the catl or the 304 cell? what carrier are they using?
  35. M

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    The price is negotiable?
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