TurboToad Posted September 3, 2017 Report Share Posted September 3, 2017 This is my first tech question here so bear with me. We have a new 2017 Edge SEL w/ Sync and no Navigation. We've had to store it in the garage at our primary home for about 7 weeks while in Oregon and I wonder how long a new fully charged battery will last? I didn't put a battery tender on it after a faulty tender ruined two deep cycle marine batteries on my boat. I have no idea what the parasitic load is during storage since the Edge electronics are much more complex than our old 07 Highlander (that one had about a 8 week limit on storage). Will we return in 2 weeks to a dead battery? I've had cars that the parasitic load was so high would drain down in 3 weeks (Infiniti Q45). TIA Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted September 3, 2017 Report Share Posted September 3, 2017 A battery cutoff switch/kill switch is the surest way to make sure that the battery stays charged. OR disconnect the neg terminal entirely. Of course, either way means a PCM relearn of your driving style. A battery tender is the best way to maintain charge. Which ones did you have the bad experience with? Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted September 4, 2017 Report Share Posted September 4, 2017 (edited) Parasitic load is only a few milliamps but a battery will continue to discharge even there no load connected. Seven weeks is pushing the envelope, as WWW stated, install a cutoff or connect a battery tender. Either way will prolong the life of the battery. Example: https://www.amazon.com/dp/B001N729FS/ref=cm_sw_r_cp_apa_SekRzbFTH7TCN Edited September 4, 2017 by enigma-2 1 Quote Link to comment Share on other sites More sharing options...
TurboToad Posted September 4, 2017 Author Report Share Posted September 4, 2017 Thanks! I guess I'll find out when I get back how long it has held a charge. I'll put a small tender I have on it next time but being away bothers me if something were to fail in the garage. If it's only a few mA it's no problem. I've had one car with about a 75mA drain (aftermarket alarm) and it was a real issue. The battery tender that failed was a well known brand permanent on-board marine charger/tender that didn't shift into 'maintain' mode, ruined the batteries in two weeks. Luckily no fire and the boat was outside. 1 Quote Link to comment Share on other sites More sharing options...
Quila Posted September 5, 2017 Report Share Posted September 5, 2017 Thanks! I guess I'll find out when I get back how long it has held a charge. I'll put a small tender I have on it next time but being away bothers me if something were to fail in the garage. If it's only a few mA it's no problem. I've had one car with about a 75mA drain (aftermarket alarm) and it was a real issue. The battery tender that failed was a well known brand permanent on-board marine charger/tender that didn't shift into 'maintain' mode, ruined the batteries in two weeks. Luckily no fire and the boat was outside. I parked my Edge Titanium with Sync, navigation and Ford's perimeter alarm system for about three and a half weeks in June while on vacation and came home to a dead battery. To be fair, I probably made a couple short trips before I left so the battery might not have been quite fully charged. By short, I mean 5 to 10 minute drive, park, 5 to 10 minute drive, park again, then 10 minutes to home and park for 3.5 weeks. This was a problem for me with my previous vehicle as well, so I keep one of those Li-Ion battery boosters in the center console. It's probably not the best solution, but at least it only takes a minute or two to get the car started again when the battery is dead. It actually took me longer to get the door open using the key than it did to get the car started after I got in. 1 Quote Link to comment Share on other sites More sharing options...
TurboToad Posted September 17, 2017 Author Report Share Posted September 17, 2017 Update: I got back today after 8 weeks and am totally amazed. The battery was only down to 12.08V and it started right up. What's odd is we left the car doors locked while in the garage, with both fobs stored over 30' away, and it was unlocked when we returned. Is this some sort of default program that unlocks the doors if voltage gets too low? That might be an issue if the battery ran down for some reason while parked at the airport, etc. No complaints from me though, I was sure it would be stone cold dead! 2 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted September 17, 2017 Report Share Posted September 17, 2017 (edited) Did anyone else has access to the fobs or car during your absence? Even if you pull out the battery, the doors will remain locked. Low voltage can cause all kinds of problems, but I doubt it would allow the doors to unlock. (But if it can, your right that would be a real problem). Edited September 17, 2017 by enigma-2 1 Quote Link to comment Share on other sites More sharing options...
TurboToad Posted September 17, 2017 Author Report Share Posted September 17, 2017 Did anyone else has access to the fobs or car during your absence? Even if you pull out the battery, the doors will remain locked. Low voltage can cause all kinds of problems, but I doubt it would allow the doors to unlock. (But if it can, your right that would be a real problem). Nope, no one had access to the fobs during that time (locked in the gun safe). Maybe I'm missing something but the car auto-locks when we park it and walk away with the fob right? If not the salesman explained it wrong but I doubt we somehow accidentally unlocked it before storing the fobs. I'll have to check that out tomorrow, we only had the car 3 days before we left so I have a lot to learn still. I am still surprised the battery stayed above 12V that long, I'll have to put a .01 ohm shunt on the negative cable and see what the parasitic load actually is. Quote Link to comment Share on other sites More sharing options...
akirby Posted September 17, 2017 Report Share Posted September 17, 2017 NO! The car does not auto lock that way. It only locks if you use the button inside or on the fob or touch the top of the door handle. Your salesman is wrong. Auto lock means the doors lock while driving above 5 mph. 2 Quote Link to comment Share on other sites More sharing options...
TurboToad Posted September 17, 2017 Author Report Share Posted September 17, 2017 NO! The car does not auto lock that way. It only locks if you use the button inside or on the fob or touch the top of the door handle. Your salesman is wrong. Auto lock means the doors lock while driving above 5 mph. Thanks for the correct info. Well so much for car the salesmen knowledge of the car LOL It's my wife's car and shes a technophobe so this well be a slow uphill learning curve for her and I'm not a very patient instructor. Her 07 Highlander had 'real knobs' not buttons to work most accessories. For parking lot security reasons I need to find out how to make it unlock only the drivers door with the fob or door handle rather than all of them. Most remotes have you hit unlock twice to unlock all the doors. The owners manual isn't clear on this but I suppose it's in there somewhere. Quote Link to comment Share on other sites More sharing options...
akirby Posted September 17, 2017 Report Share Posted September 17, 2017 It should be an option in the left hand menu. Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted September 17, 2017 Report Share Posted September 17, 2017 Salesmen. Ha. Mine told me the Vista Moonroof only popped up, did not slide open. Said none of them did that any more. Quote Link to comment Share on other sites More sharing options...
TurboToad Posted September 17, 2017 Author Report Share Posted September 17, 2017 (edited) It should be an option in the left hand menu. Found it, thanks Edited September 18, 2017 by TurboToad Quote Link to comment Share on other sites More sharing options...
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