# 2019 Ford Focus - Can I jump start this car

**URL:** <https://community.cartalk.com/t/2019-ford-focus-can-i-jump-start-this-car/185993>\
**Category:** Maintenance/Repairs\
**Tags:** ford\
**Created:** [August 24, 2022, 8:23am UTC](https://community.cartalk.com/t/2019-ford-focus-can-i-jump-start-this-car/185993 "2022-08-24T08:23:50Z")\
**Posts on this page:** 5\
**Page:** 2

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [August 28, 2022, 1:52pm UTC](https://community.cartalk.com/t/2019-ford-focus-can-i-jump-start-this-car/185993/21 "2022-08-28T13:52:54Z")

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Maybe he is stuck in the Wonderful 90s. 1890s?  
Just could not stop myself🤪

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**Author:** ![TheWonderful90s](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thewonderful90s/32/29584_2.png) [@TheWonderful90s](https://community.cartalk.com/u/TheWonderful90s)\
**Post date:** [August 29, 2022, 1:30am UTC](https://community.cartalk.com/t/2019-ford-focus-can-i-jump-start-this-car/185993/22 "2022-08-29T01:30:44Z")

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> [@Purebred](#):
>
> Yes, electronic systems are much more fragile.

Any car with a warranty wouldn’t be sold with electronics that are this fragile. Batteries fail open circuit all the time, and if this damaged electronics there would be a lot of money lost to warranty claims.

> [@vipergg](#):
>
> In my car (A) it has two batteries . One normal one and a second one for the stupid stop/start system ,

I never thought of that. There would have to be a second battery as running the starter will bring a battery down to as low as 8 Volts. This would dim all the lights and upset most of the electronics in the vehicle.

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [August 29, 2022, 12:55pm UTC](https://community.cartalk.com/t/2019-ford-focus-can-i-jump-start-this-car/185993/23 "2022-08-29T12:55:12Z")

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Really? These electronics rarely fail, extremely rare during the warranty phase. But **damage** can be caused by the consumer attempting ‘repairs’ or improper jump starting.  
Do not read the various threads about ECM failures?  
Home electronics are the same. Though I have not yet had a problem due to a power surge, it does happen.

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**Author:** ![TheWonderful90s](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thewonderful90s/32/29584_2.png) [@TheWonderful90s](https://community.cartalk.com/u/TheWonderful90s)\
**Post date:** [August 30, 2022, 12:39am UTC](https://community.cartalk.com/t/2019-ford-focus-can-i-jump-start-this-car/185993/24 "2022-08-30T00:39:12Z")

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> [@Purebred](#):
>
> improper jump starting.

What do you consider to be improper jump starting?

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [August 30, 2022, 4:41am UTC](https://community.cartalk.com/t/2019-ford-focus-can-i-jump-start-this-car/185993/25 "2022-08-30T04:41:41Z")

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When the AAA wrecker driver connects the jumper clamps reversed. These are the problems I see, vehicle electronics are much better protected today than they were 30 years ago.

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