# Ford Focus Battery light issues

**URL:** <https://community.cartalk.com/t/ford-focus-battery-light-issues/52240>\
**Category:** Maintenance/Repairs\
**Tags:** focus, batteries, ford, lights\
**Created:** [July 21, 2010, 7:35pm UTC](https://community.cartalk.com/t/ford-focus-battery-light-issues/52240 "2010-07-21T19:35:47Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Soccercop](https://avatars.discourse-cdn.com/v4/letter/s/7feea3/32.png) [@Soccercop](https://community.cartalk.com/u/Soccercop)\
**Post date:** [July 21, 2010, 7:35pm UTC](https://community.cartalk.com/t/ford-focus-battery-light-issues/52240/1 "2010-07-21T19:35:47Z")

</div>

Check Battery light came on, initially only when it was very hot (of course for the past few weeks it’s only been very hot). Had the charging system checked-they said I needed a new battery-replaced the battery-light’s still on. Before and after changing the battery-the systems’ voltage has been around 14.2 whether the light is on or not.  
  
  
  
 Anyone have any thoughts?

---

<div class="post-metadata">

**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\
**Post date:** [July 21, 2010, 8:40pm UTC](https://community.cartalk.com/t/ford-focus-battery-light-issues/52240/2 "2010-07-21T20:40:59Z")

</div>

This kind of trouble is usually related to a problem with the alternator. There may be a bad diode inside it causing the trouble.

---

<div class="post-metadata">

**Author:** ![waterboy](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/waterboy/32/764_2.png) [@waterboy](https://community.cartalk.com/u/waterboy)\
**Post date:** [July 21, 2010, 11:16pm UTC](https://community.cartalk.com/t/ford-focus-battery-light-issues/52240/3 "2010-07-21T23:16:33Z")

</div>

A check of the ground connections, and cables, and connections is the first place to start.