How can I get 110ac from a ZENN runs at 69-80v dc

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MitchJi   1 GW

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How can I get 110ac from a ZENN runs at 69-80v dc

Post by MitchJi » Oct 30 2019 12:28pm

I can’t find an invertor that converts 70-80 volt dc to 110 ac. Lots of units that do 12-48v dc.


I need to run a snall boiler and the associated pump that supplies radiant radiators for a small house.

I’m cold due to a power outage 4th day.





M
Best Wishes!

Mitch


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TPA   10 kW

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Re: How can I get 110ac from a ZENN runs at 69-80v dc

Post by TPA » Oct 30 2019 1:09pm

EDIT
Ok, so my feeble mind just realized that this is a Zenn Auto. Please disregard the comments below. Connecting a battery to the inputs of a charge controller will cause damage to the controller, and I don't know of a DC-DC buck converter that can handle large amounts of power.


Knowing the DC source and the amount of power it provides would be very useful in working out a solution.

For example a DC-DC buck converter could be used if power level is low, like maybe less than 1000W.

You could connect your dc source to an MPPT charge controller like the Midnite Classic or Schneider MPPT60-150 or even an Outback FM80. They can take up to 150V at 60A and turn it into just about anything else. You would likely have to connect the charge controller to a 12 or 24V battery and then connect the inverter to that.

I think the MPP Solar GK series inverters will take your DC source and convert it to AC without batteries and without a charge controller (just depends on what the DC source is). The MPP inverters will only output 240V, so you would need a transformer (there's always something isn't there?). Here is a link to MPP GK info https://www.mppsolar.com/v3/pip-gk-series/
Here is the 24V 3000W version on Ebay (you can find a 48V 5000W version there also) https://www.ebay.com/itm/GK-3kva-3000w- ... SwRzZcRW2x

Here is the kind of transformer that I mean for this application https://www.ebay.com/itm/2000W-Step-Up- ... SwVmNdTTZ8


Hope it helps
Last edited by TPA on Oct 31 2019 12:25pm, edited 1 time in total.
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Balmorhea   100 W

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Re: How can I get 110ac from a ZENN runs at 69-80v dc

Post by Balmorhea » Oct 30 2019 2:23pm

Any little simple space heater that uses an AC/DC motor for its fan should work on 70-90VDC, just at a lower maximum output. If you have one of those, try it. At least all the energy you use will turn into heat right where you want it.

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MJSfoto1956   10 kW

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Re: How can I get 110ac from a ZENN runs at 69-80v dc

Post by MJSfoto1956 » Oct 30 2019 4:09pm

Probably not going to help your immediate situation, but they are available on AliExpress.
Here's one: https://www.aliexpress.com/item/1000001 ... 2e0evK6Xuw
fullsizeoutput_15f6.jpeg
fullsizeoutput_15f6.jpeg (177.92 KiB) Viewed 213 times
M

P.S. I have had the exact same thoughts myself: during an emergency run my essentials off my EV.
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MitchJi   1 GW

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Re: How can I get 110ac from a ZENN runs at 69-80v dc

Post by MitchJi » Nov 02 2019 3:58pm

Change of plans. I am now planning on using inexpensive EVs for DIY powerwalls. I think the cheapest way to do DC to AC conversion is to use 12v DC to 110v AC inverters.

So now I need a recommendation for an affordable 72-96v DC to 12v DC converter.


I can use the ZENNs 12 v dc output if its sufficient.
Best Wishes!

Mitch


Buying a new Tesla? Please consider using our referral code https://ts.la/lynnem96959 to get one thousand miles of free Supercharging.

The best quality batteries and lowest priced batteries for DIY EV's are tier 1 OEM Quality Cells from salvaged (wrecked) EV packs. Three examples are Chevy Volt and Nissan Leaf and Tesla Model 3 packs.

Nissan Leaf Module specs are here
Chevy Volt Pack Info - Salvage 16kwh Packs Under $2k here

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TPA   10 kW

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Re: How can I get 110ac from a ZENN runs at 69-80v dc

Post by TPA » Nov 04 2019 1:37pm

Watch this video for how this guy is trying to access the 12V system on a Tesla model S. It may give you a few ideas.

https://www.youtube.com/watch?v=2nMs_DwveqA
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MitchJi   1 GW

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Re: How can I get 110ac from a ZENN runs at 69-80v dc

Post by MitchJi » Nov 07 2019 11:34am

TPA wrote:
Nov 04 2019 1:37pm
Watch this video for how this guy is trying to access the 12V system on a Tesla model S. It may give you a few ideas.

https://www.youtube.com/watch?v=2nMs_DwveqA
Thank you!

I’m currently planning to buy either one or two 50amp 70-80v to 12v dc/dc converters from thunderstruck motors for $125 each. If I need more than 50a they can be run in parallel. I’ll use them with 12v to 110v inverters which are available for affordable prices.

I’m planning to have thunderstruck install the converters because I can’t do anything.
Best Wishes!

Mitch


Buying a new Tesla? Please consider using our referral code https://ts.la/lynnem96959 to get one thousand miles of free Supercharging.

The best quality batteries and lowest priced batteries for DIY EV's are tier 1 OEM Quality Cells from salvaged (wrecked) EV packs. Three examples are Chevy Volt and Nissan Leaf and Tesla Model 3 packs.

Nissan Leaf Module specs are here
Chevy Volt Pack Info - Salvage 16kwh Packs Under $2k here

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