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CAN HV BE CHARGED WITH A CAR CHARGER?

Discussion in 'Gen 2 Prius Technical Discussion' started by Dxta, Sep 1, 2017.

  1. ILuvMyPriusToo

    ILuvMyPriusToo Senior Member

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    Once I had a mechanic who worked like those guys . . .
     
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  2. Dxta

    Dxta Senior Member

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    Jerry.
    I have these chargers that I have being using for my packs, temporarily until I get enough $..to get a more standard NIMH charger.
    But in the meantime, I use them interchangeable to complete the cycles.

    1. Battery charger type: BCC
    Input 230V/50Hz
    Output 9V/2A/18VA

    2. Panasonic video AC adaptor
    Has discharge and discharge function.
    Input 100-240V/50-60Hz
    Output 6V/1.3A

    All these chargers give me what I want, but it's just that I'd have to be the "apart charger" during the process. I mean, I'd have to be monitoring the modules for heat or pressure build up.

    None of the batteries has ever heated up though.

    Please do advice, if you think there's something I'd need to do, during charging.

    Thanks
     
  3. Dxta

    Dxta Senior Member

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    Hehehe! ...and we kind of like get interesting results, but its just the much time you'd ha e to put in there.
     
  4. Dxta

    Dxta Senior Member

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    I'm really appreciative of your help, @Beach-Prius, that's the something I do, but a different kind of charger though.

    PS: How did you arrive at the 1hr calculation?
    You got that calculation from this?

    Battery capacity/charger current=hour to check modules?
    If its YES, from my calculations, here's what I got:

    Capacity of module(6500MA)/output current of charger you're using(420MA)

    === 15.5hrs or 1.5days(approx 2days).

    Correct me if I'm wrong please.
     
  5. Dxta

    Dxta Senior Member

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    ...andthats
    ...and that's even for a single module.

    So, for the whole pack, you'd get,
    15.5hrs ×28

    ==434hrs or 18days.
     
  6. Beachbummm

    Beachbummm Senior Member

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    no, I use a meter, the cells are not at zero when I charge them, this is just to get the charge full when they are sitting on the shelf.. ..
     
  7. Dxta

    Dxta Senior Member

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    It would work over here, if I get a step up/step down transformer to stepdown the voltage 220V/50-60Hz to 110V.
     
  8. Dxta

    Dxta Senior Member

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    Yo
    You're right sir!
     
  9. ericbecky

    ericbecky Hybrid Battery Hero

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    In an emergency with limited tools, if you worked carefully, yes you could charge modules with a just about any charger.

    Keep them under pressure.
    Don't charge them with too high of amps. Especially when reaching higher State of Charge.

    For charging an entire pack at once..

    Another emergency idea, which I have done is If you have one good working Prius, you could rig up a set of jumper cables from the running hybrid to the hybrid battery that needs to be charged. Very dangerous, but possible. Wear high voltage protective equipment, maybe add in a safety fuse, switch, or switch would help decrease the dangerousness somewhat.

    Just about anything can be accomplished with otherwise incompatible tools. May not be a good long term solution but it would get you out of a bind.

    Do you have access to a electropherisis power supply? Say adjustable 0-500vdc. Sometimes these can be repurposed as HV battery chargers. You may need to pit a diode in line on the positive side to make it work.
     
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  10. Dxta

    Dxta Senior Member

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    @Fuzzy
     
  11. Dxta

    Dxta Senior Member

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    Thanks so much for the response.

    I think this platform is where lots of people, who have being in this field for long interface with people from countries or regions that have got no opportunities like you guys over in the USA, Europe, etc do.

    You've being so helpful on this flat form.
    If I had the resources, like maybe @fotomoto does, I wouldn't bother asking such questions, and even want to improvise.
     
  12. Dxta

    Dxta Senior Member

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    I think it all depends on taking appropriate safety measures.

    Same thing with hybrid cars.
    If one messes with them, they're gonna ha e themselves to blame
     
  13. Dxta

    Dxta Senior Member

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    Hehehehhe
    Heheheheh! I have being waiting for your reply a thousand years ago! What kept you for so long?

    Thanks a thousand for the reply sir!
     
  14. Dxta

    Dxta Senior Member

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    Proposition!

    Low SOC like this?
    Can I start with say, 5A for charging, and maybe, 4.5 or 4.0A discharge (using 55W bulb)?

    High SOC like this?
    500mA-2A charging, and 4.5, or 4A discharging?

    Would use a DVM for voltage monitoring.

    I'm I correct on this?
     
  15. MelonPrius

    MelonPrius Senior Member

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    Wow, and I thought the mechanics in Cuba were good at improvising!
     
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  16. Dxta

    Dxta Senior Member

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    Please as regards the emergency pack recharge using a known working hybrid, could you PLEASE, give a schematics or pictuees , or anything that could assist me? I can send you my email here, if you want to.

    For the electrophoresis, well, I'm just hearing of that term, today. That's not funny, but that's the truth.
    I don't have such. But maybe would look out for it here, in any of the used electronic parts stores.

    I would be very grateful, if parts needed for converting the electrophoresis to a hybrid charger can be listed here Sir.

    Thanks for your time.
     
  17. Dxta

    Dxta Senior Member

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    Here's what I got online.
    You're very correct. That stuff would be OK for a hybrid charger.

    Specific output control for both voltage and current speicifications:

    Ability to change the voltage from 10 - 300 V as minimum of 250 volts will be required for electrophoresis run;

    Current to be adjusted from 4-400 mA 5

    The supply must be integrated with digital displays to provide error free and precise output settings.

    To be provided with 3 digit display 6
    It must have built in timer for unattended runs. This prevents the need for continous monitoring and eliminates risk of sample over runs.
    It should be programmable from 1 minute to 999 minute with digital display 7

    Provision for running multiple gels at single time. To serve this purpose it should be provided with four outputs and power of 75 W.

    Thanks
     
  18. ericbecky

    ericbecky Hybrid Battery Hero

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    Basically to use an existing hybrid to charge another hybrid pack it is the same concept as jumpstarting a 12v battery from a working car's 12v battery. Except waaaaay more dangerous. positive to positive. Negative to negative.

    When jumpstarting the 12v system you are not likely to kill yourself when you accidentally touch the positive and negative cables and shock yourself. But if you make this mistake when jumpstarting the HV system, you will likely die. Seriously. Dead. I have only done this one time in an extreme situation while wearing plenty of protective equipment. So it is possible. But just because it is possible, does not mean it is safe, nor does it mean it is something you should do on a regular basis.

    An electrophoresis power supply is simply a power supply that is made for medical or lab use. For use with electophorisis. Take a look on eBay and you will find quite a few, such as this one Thermo EC 570-90 & Bio Rad | eBay

    Nothing special to convert them. Just make sure it has the input and output voltage you want. Some only have 200vdc output. You would want up to 300vdc or higher.

    Really you could buy a bare power supply and make it work for you. Meanwell is a good company. Add a fuse, a switch, a diode, some leads, and enclose it in a box. If you can't find one that fits your needs (say 300vdc) you could add two in series (2 150vdc).

    You could even try putting bunch of cheap LED power supplies in series until you reach the voltage you need. For example these 50W Constant Current LED Driver DC65-90V 520mA 50W LED Power Supply input 100v-240vac output 50—90vdc

    Search for "grid charger" and you may find results for a schematic for a lower voltage version. (under 200vdc) Change out the lower voltage supply(s) for higher ones.

    Ask someone familiar with electricity if you are not sure how to wire things in series or how to add in safeties such as fuses, switches or diodes.

    Above all be safe. Buy yourself some high voltage safety equipment like High Voltage electric class 00 safety gloves.
    https://www.amazon.com/gp/aw/d/B00BAZYVN6/
     
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  19. jerrymildred

    jerrymildred Senior Member

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    I would think you'd have to keep a very close eye on the temperature and switch the charger off and on. Also, good point by @ericbecky about keeping pressure on the cells so they don't swell up.
     
  20. ericbecky

    ericbecky Hybrid Battery Hero

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    If you are going to charge the entire pack at once have you considered simply buying a pre-made system from Hybrid Automotive?

    I don't know if they ship to your country but you may want to at least contact them and find out.

    They are more expensive than making it yourself but they are easy to use and have all the safeties built in. A Deluxe reconditioning system costs about $760 USD plus shipping, etc.
    Online Store – Hybrid Automotive
     
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