# 2018 Hyundai Santa Fe Sport battery won’t hold a charge **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** hyundai, santa-fe-sport\ **Created:** [April 10, 2020, 7:47pm UTC](https://community.cartalk.com/t/2018-hyundai-santa-fe-sport-battery-won-t-hold-a-charge/162704 "2020-04-10T19:47:45Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![JimMcQuillen](https://avatars.discourse-cdn.com/v4/letter/j/8e7dd6/32.png) [@JimMcQuillen](https://community.cartalk.com/u/JimMcQuillen)\ **Post date:** [April 10, 2020, 7:47pm UTC](https://community.cartalk.com/t/2018-hyundai-santa-fe-sport-battery-won-t-hold-a-charge/162704/1 "2020-04-10T19:47:45Z")
Our 2018 Hyundai Santa Fe battery won’t hold a charge. Replaced the battery couple of weeks ago and we get the same thing. Something is eating up the charge with some sneaky current thievery. ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [April 10, 2020, 10:25pm UTC](https://community.cartalk.com/t/2018-hyundai-santa-fe-sport-battery-won-t-hold-a-charge/162704/2 "2020-04-10T22:25:56Z")
Have you had the alternator tested? ---
**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:** [April 10, 2020, 11:01pm UTC](https://community.cartalk.com/t/2018-hyundai-santa-fe-sport-battery-won-t-hold-a-charge/162704/3 "2020-04-10T23:01:14Z")
You should still be under warranty. Has the dealer check for parasitic drain? Do you drive it enough to fully recharge the battery? Any aftermarket electronic devices? ---
**Author:** ![JimMcQuillen](https://avatars.discourse-cdn.com/v4/letter/j/8e7dd6/32.png) [@JimMcQuillen](https://community.cartalk.com/u/JimMcQuillen)\ **Post date:** [April 10, 2020, 11:08pm UTC](https://community.cartalk.com/t/2018-hyundai-santa-fe-sport-battery-won-t-hold-a-charge/162704/4 "2020-04-10T23:08:21Z")
Yes, dlr says there is nothing wrong. Has no clue. ---
**Author:** ![JimMcQuillen](https://avatars.discourse-cdn.com/v4/letter/j/8e7dd6/32.png) [@JimMcQuillen](https://community.cartalk.com/u/JimMcQuillen)\ **Post date:** [April 10, 2020, 11:10pm UTC](https://community.cartalk.com/t/2018-hyundai-santa-fe-sport-battery-won-t-hold-a-charge/162704/5 "2020-04-10T23:10:25Z")
RE: warranty. The car is preowned and was purchased with no warranty. ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [April 10, 2020, 11:16pm UTC](https://community.cartalk.com/t/2018-hyundai-santa-fe-sport-battery-won-t-hold-a-charge/162704/6 "2020-04-10T23:16:09Z")
Depending on mileage you should have been able to get the balance of 5 yr./60k powertrain through Hyundai when you bought it. We did that with my wife’s 2016 Tucson. That wouldn’t help with your electrical system though. ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [April 11, 2020, 6:43pm UTC](https://community.cartalk.com/t/2018-hyundai-santa-fe-sport-battery-won-t-hold-a-charge/162704/7 "2020-04-11T18:43:37Z")
Any aftermarket devices? A good mechanic can run a parasitic drain test to determine the culprit. Try a good independent shop instead of the dealer. ---
**Author:** ![JimMcQuillen](https://avatars.discourse-cdn.com/v4/letter/j/8e7dd6/32.png) [@JimMcQuillen](https://community.cartalk.com/u/JimMcQuillen)\ **Post date:** [April 11, 2020, 7:06pm UTC](https://community.cartalk.com/t/2018-hyundai-santa-fe-sport-battery-won-t-hold-a-charge/162704/8 "2020-04-11T19:06:12Z")
No aftermarket devices that I know of . But, what ever it is it is a pretty big user of power. Overnight it discharged the battery so badly that the key fob wouldn’t unlock the door! Ive got the charger on it right now. Good point about the independent shop but one has already thrown his hands up, says he can’t trouble shoot it with out a special Hyundai computer. Don’t have too much faith in that guy’s abilities. Thanks for the response. ---
**Author:** ![old\_mopar\_guy](https://avatars.discourse-cdn.com/v4/letter/o/6bbea6/32.png) [@old\_mopar\_guy](https://community.cartalk.com/u/old_mopar_guy)\ **Post date:** [April 11, 2020, 7:47pm UTC](https://community.cartalk.com/t/2018-hyundai-santa-fe-sport-battery-won-t-hold-a-charge/162704/9 "2020-04-11T19:47:56Z")
I think you just found out why it was for sale.