# 2005 Mazda6 battery **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** mazda6, mazda\ **Created:** [May 14, 2010, 6:57pm UTC](https://community.cartalk.com/t/2005-mazda6-battery/48851 "2010-05-14T18:57:51Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![fjnelle](https://avatars.discourse-cdn.com/v4/letter/f/9e8a1a/32.png) [@fjnelle](https://community.cartalk.com/u/fjnelle)\ **Post date:** [May 14, 2010, 6:57pm UTC](https://community.cartalk.com/t/2005-mazda6-battery/48851/1 "2010-05-14T18:57:51Z")
The battery in my 2005 Mazda6 has never lasted more than around two and a half years. I have had to replace the most recent battery after 19 months. I have never left the headlights on nor any interior light. What could be going on? ---
**Author:** ![Roadrunner](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Roadrunner](https://community.cartalk.com/u/Roadrunner)\ **Post date:** [May 14, 2010, 8:23pm UTC](https://community.cartalk.com/t/2005-mazda6-battery/48851/2 "2010-05-14T20:23:07Z")
Have you had a full load test done? The test involves turning on all electrical devices to load the system while the alternator is checked. There MAY be a parasitic drain causing the battery to drain slightly and the charging system may not be able to recharge the battery causing a drop over a period of time. Perhaps even a bad ground connection somewhere. ---
**Author:** ![fjnelle](https://avatars.discourse-cdn.com/v4/letter/f/9e8a1a/32.png) [@fjnelle](https://community.cartalk.com/u/fjnelle)\ **Post date:** [May 14, 2010, 8:31pm UTC](https://community.cartalk.com/t/2005-mazda6-battery/48851/3 "2010-05-14T20:31:08Z")
Thanks. I’ll talk to my mechanic about getting this test done. ---
**Author:** ![lion9car](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@lion9car](https://community.cartalk.com/u/lion9car)\ **Post date:** [May 14, 2010, 10:19pm UTC](https://community.cartalk.com/t/2005-mazda6-battery/48851/4 "2010-05-14T22:19:52Z")
Maybe your alternator isn’t charging properly. If the battery is getting discharged more than expected, that will reduce its lifespan. ---
**Author:** ![Goldwing](https://avatars.discourse-cdn.com/v4/letter/g/e68b1a/32.png) [@Goldwing](https://community.cartalk.com/u/Goldwing)\ **Post date:** [May 15, 2010, 2:37am UTC](https://community.cartalk.com/t/2005-mazda6-battery/48851/5 "2010-05-15T02:37:05Z")
Where do you live? Is it very hot there? Batteries don’t like heat. ---
**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\ **Post date:** [May 15, 2010, 2:03pm UTC](https://community.cartalk.com/t/2005-mazda6-battery/48851/6 "2010-05-15T14:03:42Z")
I will add one that may be overlooked. Your battery may be being over charged. How often do you check the electrolyte level? How often is it low? If you never check it, or if you do and need to add water (how often?) then it may be overcharged and you may need a repair to the charging system. ---
**Author:** ![RBSiciliano](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/rbsiciliano/32/1752_2.png) [@RBSiciliano](https://community.cartalk.com/u/RBSiciliano)\ **Post date:** [May 26, 2010, 1:37am UTC](https://community.cartalk.com/t/2005-mazda6-battery/48851/7 "2010-05-26T01:37:25Z")
i have the same issue. i have a 2006 model and i’m on the third battery. i drive mostly long trips and live in the southwest and don’t put a lot of strain on the battery. other than that the car is holding up well at 131,000 miles so i’m not overly concerned about the battery…in fact this last one was free because it went out soon enuf that it was still under full warrenty. my suggestion is get your batteries with a warrenty and as soon as it starts dragging to start the car immediatly replace it because in my experience it’s dead at that point.