Recent content by zacksc

  1. 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.
  2. 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...
  3. 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...
  4. 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...
  5. 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.?
  6. 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...
  7. 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...
  8. 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...
  9. 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...
  10. 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...
  11. 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...
  12. 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...
  13. 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...
  14. 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...
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