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Salesfolks, are not reliable enough to determine the safety or possible damage that may occur when frigging with the electronics of a car. Interesting but not earth shattering.
agreed there. there are definitely some very knowledgeable folks at some dealers but working there alone doesn't mean I'd trust what they say.
 

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It is difficult for me to believe one can damage ecu by using portable car jumper on a hybrid.

It’s more probable when jumping a regular ICE model car. In this case partable jumper provides briefly hundreds of amps of current in order to spin the engine.

In a hybrid jumper provides couple of amps to energize computer, relays and lights.
 

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It is difficult for me to believe one can damage ecu by using portable car jumper on a hybrid.

It’s more probable when jumping a regular ICE model car. In this case partable jumper provides briefly hundreds of amps of current in order to spin the engine.

In a hybrid jumper provides couple of amps to energize computer, relays and lights.
I'm not sure that that kind of common sense thinking really applies to frying electronics. similarly I can destroy electronics by taking off a sweater or scuffing my feet on a carpet and then touching an electrical component. I'd hope the ECU is better protected than that but my point is just that it can potentially take very little to fry electronics.
 

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Based on this, maybe a jump starter isn't the right tool - we just need enough power for the computer, not the high current to jump the engine, and some jump starters may not power up without a big power pull. Maybe what we need is a basic small battery pack, like one used run a laptop, with 12V outputs? I have an EcoFlow River Mini that I use for lots of things, and it has a 12V out connector and I already have a cable that has alligator clips on the other end.
 

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Based on this, maybe a jump starter isn't the right tool - we just need enough power for the computer, not the high current to jump the engine, and some jump starters may not power up without a big power pull. Maybe what we need is a basic small battery pack, like one used run a laptop, with 12V outputs? I have an EcoFlow River Mini that I use for lots of things, and it has a 12V out connector and I already have a cable that has alligator clips on the other end.
that does, by the description of what the 12V battery does in the prime, sound like it might work.
 

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Based on this, maybe a jump starter isn't the right tool - we just need enough power for the computer, not the high current to jump the engine, and some jump starters may not power up without a big power pull. Maybe what we need is a basic small battery pack, like one used run a laptop, with 12V outputs? I have an EcoFlow River Mini that I use for lots of things, and it has a 12V out connector and I already have a cable that has alligator clips on the other end.
😜
Multipurpose battery Battery Font Cylinder Tints and shades

But in all seriousness, I'm certain that your idea "EcoFlow River Mini " would work just fine.

dp
 

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😜
View attachment 192111
But in all seriousness, I'm certain that your idea "EcoFlow River Mini " would work just fine.

dp
Actually, a bunch of these connected in parallel may do the trick too!
Anyone know how much current the system needs to kick in the HV system?
 

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Based on this, maybe a jump starter isn't the right tool - we just need enough power for the computer, not the high current to jump the engine, and some jump starters may not power up without a big power pull. Maybe what we need is a basic small battery pack, like one used run a laptop, with 12V outputs? I have an EcoFlow River Mini that I use for lots of things, and it has a 12V out connector and I already have a cable that has alligator clips on the other end.
so one thing is that the 12V does do more than just power the CPU based on earlier descriptions in this thread. I think we'd need to know what kind of loads the EcoFlow device can handle and if this aligns with what the Rav4Prime needs at start up.
 

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LOL Ecoflow.

I have one of those too, btw, this isn't a hate post. It's a positively ginormous battery bank meant for powering 12v and 5v(USB) devices. Buy EcoFlow RIVER mini Portable Power Station - EcoFlow US

I have the river, and I use it to power a fridge. Positively overkill tbh for automotive. Nah, seriously, I do have several 12v automotive power banks, including one of the above mentioned Type Ss (which I used to jump my TDI with) .. it can totally provide current enough to run the computers if you hook it to either the 12v hood/fuse box or rear/battery terminals.

...

Btw a 'jump starter' basically just provides 12V non sagging power for long enough to start a car. The older lead acid ones worked by having a literal car battery inside of them. The newer lithium ion ones work by having a capacitor in the cabling which has a power reserve enough to make sure you can crank a vehicle before sagging (and being recharged).
 

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LOL Ecoflow.

I have one of those too, btw, this isn't a hate post. It's a positively ginormous battery bank meant for powering 12v and 5v(USB) devices. Buy EcoFlow RIVER mini Portable Power Station - EcoFlow US
Btw a 'jump starter' basically just provides 12V non sagging power for long enough to start a car. The older lead acid ones worked by having a literal car battery inside of them. The newer lithium ion ones work by having a capacitor in the cabling which has a power reserve enough to make sure you can crank a vehicle before sagging (and being recharged).
The River Mini is my small one (only 210WH) - I have several other larger River products from the same company, and a pair of their 1024WH Delta 2 units (plus solar panels to charge them). To me, the usefulness of the River Mini over a jump starter is that you can connect it with a long cable and leave it connected for a while, if needed, not just the few seconds that a jump starter provides power. Plus some jump starters shutdown instantly if they don't detect a big power pull and so won't work to power the computer.

By the way, I've estimated that one of my bigger units (Delta 2) can top up the EV battery 110 V enough to get roughly 3 miles. Note much, but enough if I find myself out of gas with a dead EV battery (hopefully that won't ever happen).
 

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so one thing is that the 12V does do more than just power the CPU based on earlier descriptions in this thread. I think we'd need to know what kind of loads the EcoFlow device can handle and if this aligns with what the Rav4Prime needs at start up.
Absolutely agree. I'd love to know how many Watts are needed - assuming all non-critical electronics (lights, radio, etc.) are turned off.
 

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The big draw happens when you first open the driver door. This kicks in the ABS brake pump to pressurize the ABS system. If the battery is low, the ABS pump finishes it off. Not sure how much power is required there. There are a bunch of things that turn on automatically unless you disable them (like interior lights). Then when you turn the ignition on, you are also booting up the infotainment system in addition to starting the myriad of computers in the car - there are a bunch. You also need enough power to operate the contactor that connects the traction battery to the high voltage electrical system. Not sure if the 10 amp output will do it. But maybe if you connect it for 15 minutes or so, there will be enough in the battery to start the car. Another issue is the Ecoflow has strict power management in place to prevent overloading the outputs. I know the USB outputs cut out if you draw more than the rated 2.4 amps. It seems like the best thing to do is try it, but you would need a low battery first.
 

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The big draw happens when you first open the driver door. This kicks in the ABS brake pump to pressurize the ABS system. If the battery is low, the ABS pump finishes it off. Not sure how much power is required there. There are a bunch of things that turn on automatically unless you disable them (like interior lights). Then when you turn the ignition on, you are also booting up the infotainment system in addition to starting the myriad of computers in the car - there are a bunch. You also need enough power to operate the contactor that connects the traction battery to the high voltage electrical system. Not sure if the 10 amp output will do it. But maybe if you connect it for 15 minutes or so, there will be enough in the battery to start the car. Another issue is the Ecoflow has strict power management in place to prevent overloading the outputs. I know the USB outputs cut out if you draw more than the rated 2.4 amps. It seems like the best thing to do is try it, but you would need a low battery first.
Thanks. But to try it, I would need a RAV4 Prime too! Hopefully next month.

Now, I could certainly do it with the higher end battery systems (from EcoFlow or others) that have a high current DC Anderson port, but the bigger, 60lb-and-up, units aren't quite practical for this use!
 

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I wonder if one of these will work with any power station...


The cable would have to have some electronics built in to manage charging. First, many of this type of power station regulate the DC out below 13V, which is too low to charge a 12V battery. Second, a 12V charger should regulate the charging voltage/power depending on the state of the battery. Finally, the capacity of the smaller ones (like the Jackery 300 in this image) is small compared to a car battery.
 
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