Woeo

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But that was nothing compared to my old Dodge Journey that had the battery in the front fender, right between the front wheel and the bumper.
Need to remove the wheel & tire and partially remove fender liner on a Subaru to swap a headlamp bulb.
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highland58

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Need to remove the wheel & tire and partially remove fender liner on a Subaru to swap a headlamp bulb.
My Subaru dealer would replace the bulb for me with no charge for labor, they managed to do it without removing the wheel and tire (2010 legacy outback).
 
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NoMoShocks

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Shrek is for adults only ?
Screen Shot 2021-01-11 at 11.20.15 AM.png
It's because Shrek implies that King Farquaad is compensating for something. I had to have "The Talk" with my kids when they were 4.5 years old. That movie was OBSCENE! Better watch before it is gone!
 
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This points to another specification I have yet to see: what is the charging rate on this system that charges the low voltage battery off the high voltage battery. On my Leaf it is 1kW.
I would be super interested to know what dc-dc converter is being used, and what the thruput is. I'd also like to know if the dc-dc is 'always on' to keep the 12v battery up, or if it only comes on with key-on

Related info I'd like is to know what the actual HV range is from end-of-charge upper limit to lowest allowable DOD.
 

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I would be super interested to know what dc-dc converter is being used, and what the thruput is. I'd also like to know if the dc-dc is 'always on' to keep the 12v battery up, or if it only comes on with key-on

Related info I'd like is to know what the actual HV range is from end-of-charge upper limit to lowest allowable DOD.
If it operates similarly to the Focus Electric DCDC converter is on for key on and while charging.
 


dtbaker61

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If it operates similarly to the Focus Electric DCDC converter is on for key on and while charging.
mmmmm, ok, I'll be VERY curious to see what's under that Frunk, and how hard/easy it might be to get direct access to either battery pack voltage or the 12vDC output.
 

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mmmmm, ok, I'll be VERY curious to see what's under that Frunk, and how hard/easy it might be to get direct access to either battery pack voltage or the 12vDC output.
Um? why?

2nd it may be easier to read that off the OBD-II port.
 

dtbaker61

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Um? why?

2nd it may be easier to read that off the OBD-II port.
I don't want to just read the voltage, I want to export energy to an Inverter for camping and at Job Sites to power hand tools and chargers..... instead of a gas powered generator.

Its easy to find good Inverters to run on 12, 24, 36, or 48 volts.... but the amount of power I can pull depends a little on the thruput of the stock dc-dc converter unless I have decent access to the HV so I could connect higher power dc-dc converters if needed.
 
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NoMoShocks

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mmmmm, ok, I'll be VERY curious to see what's under that Frunk, and how hard/easy it might be to get direct access to either battery pack voltage or the 12vDC output.
There is an access panel to get to the 12V battery. Should be no issue connecting a 1500W 12Vdc to 120Vac invertor. If any concern, upgrade to a larger battery but be sure it is same type so as not to freak out the on board computer's charging curve, i.e. don't exchange Lead Acid for AGM or visa versa. The 400+ Vdc battery should keep the 12V dc battery topped off if the car is on.
 

dtbaker61

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There is an access panel to get to the 12V battery. Should be no issue connecting a 1500W 12Vdc to 120Vac invertor. If any concern, upgrade to a larger battery but be sure it is same type so as not to freak out the on board computer's charging curve, i.e. don't exchange Lead Acid for AGM or visa versa. The 400+ Vdc battery should keep the 12V dc battery topped off if the car is on.
yup, a little 1500w inverter pulling from the existing 12vDC would be Step 1.
Step 2 may be adding a 3000watt Meanwell dc-dc converter to pull directly from the HV to 48vDC so I can run a 3000watt inverter for the bigger loads at construction sites, and approach whole home 'critical loads' backup.
 

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There is an access panel to get to the 12V battery. Should be no issue connecting a 1500W 12Vdc to 120Vac invertor. If any concern, upgrade to a larger battery but be sure it is same type so as not to freak out the on board computer's charging curve, i.e. don't exchange Lead Acid for AGM or visa versa. The 400+ Vdc battery should keep the 12V dc battery topped off if the car is on.
There is a sensor in the negative cable of the LVB so dont change the battery size or that sensor's calibrations could be skewed. Would also immediately void the warranty.
 
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NoMoShocks

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There is a sensor in the negative cable of the LVB so dont change the battery size or that sensor's calibrations could be skewed. Would also immediately void the warranty.
Reminds me of the time I had to pay $110 on my brand new Dodge for them to tell me the Fram Locking gas cap was faulty. Assuming they used the OBD2 scan tool, pretty good racket $110 fo 1/4 hour of work.
 

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Reminds me of the time I had to pay $110 on my brand new Dodge for them to tell me the Fram Locking gas cap was faulty. Assuming they used the OBD2 scan tool, pretty good racket $110 fo 1/4 hour of work.
Yeah. I have had many Standt replacement fuel caps not hold pressure right out of the box. For something like that....OEM is the best choice.

Let me see if I can cut and paste the text regarding the BMS. You might find it helpful....

Battery Monitoring Sensor
The Battery Monitoring Sensor continuously monitors the condition and the state of charge of the 12V battery and
provides the BCM with this information. The Battery Monitoring Sensor also estimates losses in the battery
capacity over time. The Battery Monitoring Sensor should only be reset when the battery is replaced. It is urgently
recommended that the replacement battery has the exact same specification as the original battery. If it does not,
the accuracy of the Battery Monitoring Sensor outputs will be compromised.
The Battery Monitoring Sensor is clamped directly to the negative terminal of the battery and grounds to the
vehicle at the chassis ground connection point through the negative battery cable and eyelet. It is part of the
negative battery cable and cannot be serviced separately. For more information,
Refer to: Battery and Cables - System Operation and Component Description (414-01 Battery, Mounting and
Cables, Description and Operation).
External customer loads must only be connected to the vehicle at the customer battery connection point. If an
external customer load is connected at the negative battery post, the Battery Monitoring Sensor accuracy cannot
be guaranteed. It is recommended that the Battery Monitoring Sensor pole clamp is not removed unless a battery
replacement is required. Should the battery need to be isolated, this should be done by disconnecting the ground
eyelet at the chassis ground.
 

JamieGeek

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Yeah. I have had many Standt replacement fuel caps not hold pressure right out of the box. For something like that....OEM is the best choice.

Let me see if I can cut and paste the text regarding the BMS. You might find it helpful....

Battery Monitoring Sensor
The Battery Monitoring Sensor continuously monitors the condition and the state of charge of the 12V battery and
provides the BCM with this information. The Battery Monitoring Sensor also estimates losses in the battery
capacity over time. The Battery Monitoring Sensor should only be reset when the battery is replaced. It is urgently
recommended that the replacement battery has the exact same specification as the original battery. If it does not,
the accuracy of the Battery Monitoring Sensor outputs will be compromised.
The Battery Monitoring Sensor is clamped directly to the negative terminal of the battery and grounds to the
vehicle at the chassis ground connection point through the negative battery cable and eyelet. It is part of the
negative battery cable and cannot be serviced separately. For more information,
Refer to: Battery and Cables - System Operation and Component Description (414-01 Battery, Mounting and
Cables, Description and Operation).
External customer loads must only be connected to the vehicle at the customer battery connection point. If an
external customer load is connected at the negative battery post, the Battery Monitoring Sensor accuracy cannot
be guaranteed. It is recommended that the Battery Monitoring Sensor pole clamp is not removed unless a battery
replacement is required. Should the battery need to be isolated, this should be done by disconnecting the ground
eyelet at the chassis ground.
Wow! So much for putting a knife switch disconnect on the - post.

Not that I would but its common practice (I have one on the Bolt for towing it around).
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