OFT Keep plugged in without killing battery? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Axion · 01-18-2015, 01:02 PM

My OFT Tablet I leave plugged into my BRZ but it seems if I don't start it for 24-48 hours it will kill my entire battery.

Is there anyway to make it timeout after X amount of hours?

phrosty · 01-18-2015, 01:15 PM

Someone could make a small amount of money creating cables with an on/off switch.

Phantobe · 01-21-2015, 01:55 PM

Wondering the same thing, its annoying to have to plug/unplug the OFT.

Sam86 · 06-04-2020, 09:50 AM

Sorry for the bump, just wanted to know if leaving the OFT ecu cable plugged in still draws from your battery- just the cable, tablet is unplugged from it

Trying to narrow down possible causes for almost being unable to start my car today (took about 4-5 cranks) which I suspect is from the battery being close to drained- Granted I was in accessory mode with the radio/ heater/ lights on but regardless I was only in it for 10-15minutes before trying to leave and facing that issue which I doubt is normal.

So either my battery is due for replacing, or having the oft cable by itself is still drawing power and has dwindled away my battery over the past few weeks

solidONE · 06-04-2020, 02:26 PM

You have 3 solutions. Use the adapter that has a power switch, unplug each time, get a battery big enough where it has a lot of excess power.

I went with an OBD2 adapter with a switch purchased from Jeff Bezos

Sam86 · 06-05-2020, 02:42 AM

Quote:

Originally Posted by solidONE

You have 3 solutions. Use the adapter that has a power switch, unplug each time, get a battery big enough where it has a lot of excess power.

I went with an OBD2 adapter with a switch purchased from Jeff Bezos

So you're saying the cable plugged in by itself (no OFT tablet connected to it) does infact still draw power?

solidONE · 06-05-2020, 02:48 AM

Just get this: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

It's self explanatory

You switch it off, it gets no power. So no power draw while off.

solidONE · 06-05-2020, 03:00 AM

In case you guys weren't familiar with who Mr. Bezos is.

Yoshoobaroo · 06-05-2020, 07:54 AM

Quote:

Originally Posted by Sam86

So you're saying the cable plugged in by itself (no OFT tablet connected to it) does infact still draw power?

No it doesn’t, I leave the cable plugged in over the weekend but undo the OFT from the cable. No drain.

NoHaveMSG · 06-05-2020, 12:34 PM

Why do you leave your OFT in all the time? Seems pretty pointless.

Yoshoobaroo · 06-05-2020, 02:30 PM

To watch temps and fuel trims.

RToyo86 · 06-05-2020, 02:42 PM

Quote:

Originally Posted by Yoshoobaroo

To watch temps and fuel trims.

Does the torque app not accomplish the same thing?

That is what I use for temps and AFR

NoHaveMSG · 06-05-2020, 03:25 PM

Quote:

Originally Posted by Yoshoobaroo

To watch temps and fuel trims.

I understand doing that on occasion or when making a change, but all the time

Yoshoobaroo · 06-05-2020, 03:28 PM

Quote:

Originally Posted by NoHaveMSG

I understand doing that on occasion or when making a change, but all the time

I usually have it in the car for ~3 weeks after flashing something new, then I take it out if all is well

Quote:

Originally Posted by RToyo86

Does the torque app not accomplish the same thing?

That is what I use for temps and AFR

Torque can’t read IAM

01-18-2015, 01:02 PM	#1
Axion Axion Join Date: Oct 2013 Drives: 2013 BRZ (Dark Grey Metallic) Location: Nashville, TN Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	OFT Keep plugged in without killing battery? My OFT Tablet I leave plugged into my BRZ but it seems if I don't start it for 24-48 hours it will kill my entire battery. Is there anyway to make it timeout after X amount of hours?

01-18-2015, 01:15 PM	#2
phrosty Senior Member Join Date: Apr 2013 Drives: 2013 FR-S Location: Seattle Posts: 806 Thanks: 202 Thanked 320 Times in 199 Posts Mentioned: 18 Post(s) Tagged: 1 Thread(s)	Someone could make a small amount of money creating cables with an on/off switch. __________________ 2013 Whiteout 6AT FR-S \| Perrin Inlet Tube + 2.75" CAI \| OpenFlash Header \| P&L Catback \| 4.88 Final Drive \| Dialed in OFT 2.0x Stage 2 E85 \| 18x8 Enkei Raijin + 225/40 Michelin Pilot Super Sport \| 17x7 Stock + 215/45 Michelin X-Ice Xi-2

01-21-2015, 01:55 PM	#3
Phantobe Senior Member Join Date: Aug 2013 Drives: 14 Ultramarine FR-S Location: SOCAL Posts: 795 Thanks: 381 Thanked 413 Times in 231 Posts Mentioned: 14 Post(s) Tagged: 1 Thread(s)	Wondering the same thing, its annoying to have to plug/unplug the OFT. __________________ 2014 Ultramarine Scion FR-S 2000 Integra LS - SOLD

06-04-2020, 02:26 PM	#5
solidONE Senior Member Join Date: Dec 2012 Drives: FR-S Whiteout Location: California Posts: 2,863 Thanks: 1,808 Thanked 790 Times in 611 Posts Mentioned: 42 Post(s) Tagged: 0 Thread(s)	You have 3 solutions. Use the adapter that has a power switch, unplug each time, get a battery big enough where it has a lot of excess power. I went with an OBD2 adapter with a switch purchased from Jeff Bezos __________________ Intent > Content cowardice is the mother of cruelty.

06-05-2020, 02:48 AM	#7
solidONE Senior Member Join Date: Dec 2012 Drives: FR-S Whiteout Location: California Posts: 2,863 Thanks: 1,808 Thanked 790 Times in 611 Posts Mentioned: 42 Post(s) Tagged: 0 Thread(s)	Just get this: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 It's self explanatory You switch it off, it gets no power. So no power draw while off. __________________ Intent > Content cowardice is the mother of cruelty. Last edited by solidONE; 06-05-2020 at 02:58 AM.

06-04-2020, 09:50 AM	#4
Sam86 Senior Member Join Date: Apr 2020 Drives: Toyota 86 GTS Location: VIC Posts: 376 Thanks: 108 Thanked 100 Times in 64 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	Sorry for the bump, just wanted to know if leaving the OFT ecu cable plugged in still draws from your battery- just the cable, tablet is unplugged from it Trying to narrow down possible causes for almost being unable to start my car today (took about 4-5 cranks) which I suspect is from the battery being close to drained- Granted I was in accessory mode with the radio/ heater/ lights on but regardless I was only in it for 10-15minutes before trying to leave and facing that issue which I doubt is normal. So either my battery is due for replacing, or having the oft cable by itself is still drawing power and has dwindled away my battery over the past few weeks

06-05-2020, 03:00 AM	#8
solidONE Senior Member Join Date: Dec 2012 Drives: FR-S Whiteout Location: California Posts: 2,863 Thanks: 1,808 Thanked 790 Times in 611 Posts Mentioned: 42 Post(s) Tagged: 0 Thread(s)	In case you guys weren't familiar with who Mr. Bezos is. __________________ Intent > Content cowardice is the mother of cruelty.

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