Where to keep a battery jumper?

Scottmcll

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Like many, I have a battery jumper starter brick. In my old ICE car, I kept it in the car and plugged into a USB. I was doing the same in my beloved Mach-E since getting her in Jan., But after reading posts here re 12v battery failures, it finally dawned on me that keeping it in the car would do me no good since in all likelihood, I would be outside of the car when a battery failure occurs, right? So is the best option to leave it in my garage and hope that if a LVB failure happens I'm home? Am I missing something or is there a work-around? Just wondering what you guys are doing.
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RickMachE

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That's it. And it needs to have a boost mode to work. You also get 5 years / 60,000 miles free roadside assistance...
 

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Like many, I have a battery jumper starter brick. In my old ICE car, I kept it in the car and plugged into a USB. I was doing the same in my beloved Mach-E since getting her in Jan., But after reading posts here re 12v battery failures, it finally dawned on me that keeping it in the car would do me no good since in all likelihood, I would be outside of the car when a battery failure occurs, right? So is the best option to leave it in my garage and hope that if a LVB failure happens I'm home? Am I missing something or is there a work-around? Just wondering what you guys are doing.
Replace the battery at 3 years
 

markboris

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Only if the car was LOCKED when the battery dies are you unable to get in (after 12 minutes). If the car is unlocked, there is no problem opening any of the doors with a dead battery, even if the battery has been removed.
 


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There was a post a few years ago about leaving it in the trunk and then making a AA battery stick to jump the trunk, and THEN hiding the 8AAs under the access to the frunk leads.
Not sure if anyone did it but it was talked about.
 

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There was a post a few years ago about leaving it in the trunk and then making a AA battery stick to jump the trunk, and THEN hiding the 8AAs under the access to the frunk leads.
Not sure if anyone did it but it was talked about.
I think I might have gotten the holder for that, but I definitely never tested it out...
 

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This predicament is why you should focus on the maintenance and replacement of the 12V battery instead. As the old saying goes, "An ounce of prevention is worth a pound of cure." Replace the 12V battery every 3-5 years or as soon as the app tells you. Then your chance of failure is very low.

My jump pack stays at home (not in the car). In the rare event my 12V were to die away from home, I would:
  1. Ask around if anyone has jumper cables or a jump pack.
  2. Call roadside assistance for a jump.
  3. Call a friend or Uber for a ride home, and return later with my jump pack, cables, and/or spare battery.
  4. If I'm in an area with no cell service (rare), use satellite SOS on my phone to summon roadside assistance or text a friend to come help.
The 8x AA's in series will work, but it's sort of a pain and I would not even bother with that. Your chance of needing it is slim to none if you replace your battery on time.
 
 







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