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  1. Z

    Using rooftop grid-tie solar during a power outage.

    Thanks. When the power goes off I can turn off the main breaker at the panel. That will prevent the microinverters from turning back on while I am tapping into dc power. (Is it a good idea to turn off each individual breaker as well when I do that and then turn them back on one by one? Is that...
  2. Z

    Using rooftop grid-tie solar during a power outage.

    Yes, exactly.
  3. Z

    Using rooftop grid-tie solar during a power outage.

    I have a small system that consists of eight rooftop mounted 250 Watt solar panels with individual enphase micro inverters. Generally, when the power is on, that feeds into a PG&E electrical grid. I am planning to install new iq8 micro inverters, one for each panel. I believe the connection...
  4. Z

    Charging a Li battery from a 4Runner alternator.

    It is a 10s3p from Sanyo I bought from Grin pretty recently. 36 volts 10 Ah. So far I have mostly charged it from the Jackery 1000 or from occasional random shore power using a 2 amp charger I got from grin.
  5. Z

    Li Time mini LiFePO4 battery made with pouch cells. Charging? Voltage measurement?

    Thanks very much. I ordered t mini.
  6. Z

    Charging a Li battery from a 4Runner alternator.

    Thanks very much. I guess having the battery right behind the front seat of the forerunner will make the distance pretty short, so maybe that will help. I’m hoping for 30 A but I’d be pretty happy with 20 A . That’s still four times the power that you get typically from cigarette lighter port...
  7. Z

    Charging a Li battery from a 4Runner alternator.

    Thanks very much Hillhater. That is a really accurate and concise summary. I read those things you posted regarding isolated and non isolated. (Thank you !!) It seems like they’re really different in design. Much more different than I would have imagined. I’m noting that the non-isolated is...
  8. Z

    Charging a Li battery from a 4Runner alternator.

    The thing I’m most unsure about now is whether the DC DC converter* should be isolated or non-isolated. * specifically I am thinking probably a Victron Orion tr smart 12-12 30 amp. They make two kinds: isolated and non-isolated. And I don’t really understand what that means or which one I...
  9. Z

    Charging a Li battery from a 4Runner alternator.

    Thanks for all the advice. Really helpful! I think I am going to get the li time mini 12 volt as you suggested. And then I’m also planning to get an Orion- TR smart 12/12 30 amp converter for charging from my alternator. should I get the isolated or non-isolated.?
  10. Z

    Li Time mini LiFePO4 battery made with pouch cells. Charging? Voltage measurement?

    I am thinking about getting a LiFePO4 battery from a company called Li Time (I think it used to be called ampere time). The specific battery is the 12.8 V, 100 Ah, 1280 Wh mini. It’s a bit smaller than their regular battery of the same capacity, and it’s made with pouch cells. Does anyone have...
  11. Z

    Charging 12volt 100amp hr Litime

    I know this is an old thread here, and maybe I should just start a new one. My question is: how well can one infer state of charge for LiFePO4 batteries, like this one from LiTime? I use voltage measurement quite a bit with lithium ion bike batteries, and I feel like if you know when to...
  12. Z

    Charging a Li battery from a 4Runner alternator.

    Thanks very much Hillhater. Victron and Red arc look good for dc-dc. Regarding batteries, what do you think about SOK? I am thinking particularly about the 24 volt 100 aH SOK. I think I can charge that from the 4runner alternator with a Victron Orion tr smart 12-24 which is 15 amps on the 24...
  13. Z

    Charging a Li battery from a 4Runner alternator.

    Thanks, and yes, I agree that that is the best way to charge the bike battery. I have a Jackery 1000 already in the 4Runner which has a 110 V inverter; but it doesn't hold enough total energy. It charges very slowly when I am driving; just 72 Watts as the input current is limited to 6 amps. A...
  14. Z

    Charging a Li battery from a 4Runner alternator.

    I do a lot of camping and biking from a 2008 4Runner. Unless I can find 110 volt power somewhere, it is hard to keep bike batteries charged. I was thinking of getting a 12 or 24 volt Li battery with a capacity around 1300 to 2000 Watt-hours that I can charge from the 4Runner alternator through a...
  15. Z

    Baserunner controller inside a downtube mount: heat generation and other issues?

    Well, it could be loose connectors. That seems reasonable and might be the most likely thing. It is a pretty tight set-up. The controller was wired into the Hailong base at Grin when both were purchased new a couple years ago. Then the Hailong battery slides onto the 4 blade connector. So I am...
  16. Z

    Baserunner controller inside a downtube mount: heat generation and other issues?

    Thanks Amberwolf. Based on your comment and the one after I am starting to think that it may not be due to temperature after all. That was my first guess since the controller is in a confined space, so I wondered if it might not cool as well as a baserunner out on the frame. I have used...
  17. Z

    Baserunner controller inside a downtube mount: heat generation and other issues?

    I have a Baserunner (aka Phaserunner) controller mounted inside a Hailong 01 downtube mount. I am using that with 36 volt battery to power a Bafang G311 motor. Since I have moved the Baserunner controller inside the battery mount, I find that the controller stops working briefly fairly...
  18. Z

    Using 3 LIGO batteries to power a 24 volt converter

    I have 3 LIGO batteries from Grin that I haven't been using very much recently. In series, as you all know, they make a nominal 110 volt dc source. I would like to ask if I can use that as the power source for a 24 volt converter which normally plugs into a 110 AC wall outlet? I already have an...
  19. Z

    40 amp fuse question; blade vs bolt down

    Thank you. This is really helpful
  20. Z

    40 amp fuse question; blade vs bolt down

    Blue Sea Systems fuse Box
  21. Z

    40 amp fuse question; blade vs bolt down

    Thanks a lot! I see what you mean. The distance between the 14 volt source and the fuse is a concern. Maybe I need to mount the ANL fuse box by itself right by the 14 volt source, and then have the switch and precharge resistor in a separate box a foot or two away? I illustrated that here in...
  22. Z

    40 amp fuse question; blade vs bolt down

    Thanks Amberwolf. Yes, the only the positive side goes through the switch box, and, as you said, current goes through the power resistor only briefly when the capacitors in the inverter are being charged. I am thinking I may try putting the power resistor on top of the ANL fuse box cover (as...
  23. Z

    40 amp fuse question; blade vs bolt down

    As I novice, I have no clear idea what kind of box to use (or how to mount the power resistor)? What is the best thing to put on the floor of a car that will stay cool and be safe. The components I have are: 1) a 4.8 " long ANL fuse block 2) a 3"x3" Switch 3) a 2 Ohm 100 Watt power resistor...
  24. Z

    40 amp fuse question; blade vs bolt down

    Thanks all for the excellent advice. I just ordered a Blue Sea 5005 ANL fuse block and a Blue Sea 5165 ANL fuse from Peter Kennedy Yacht Services (PKYS) in Maryland. I also got a New Zealand made switch from them: a BEP 701S, so that I can switch from from a 2 Ohm precharge resistor to a direct...
  25. Z

    40 amp fuse question; blade vs bolt down

    This shows a picture of the fuse holder that got somewhat warm and which held the 30 amp blade fuse which blew after about 30 minutes of operation at 26 amps or so.
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