# 2006 Lexus RX 400h - Battery issues when parked

**URL:** <https://community.cartalk.com/t/2006-lexus-rx-400h-battery-issues-when-parked/173187>\
**Category:** Maintenance/Repairs\
**Tags:** batteries, lexus\
**Created:** [December 9, 2020, 11:24pm UTC](https://community.cartalk.com/t/2006-lexus-rx-400h-battery-issues-when-parked/173187 "2020-12-09T23:24:49Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![singh47](https://avatars.discourse-cdn.com/v4/letter/s/3ec8ea/32.png) [@singh47](https://community.cartalk.com/u/singh47)\
**Post date:** [December 9, 2020, 11:24pm UTC](https://community.cartalk.com/t/2006-lexus-rx-400h-battery-issues-when-parked/173187/1 "2020-12-09T23:24:50Z")

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if I park the suv for a weak the battery is drained never recharge have to buy new want to know what is the problem

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**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:** [December 10, 2020, 1:15am UTC](https://community.cartalk.com/t/2006-lexus-rx-400h-battery-issues-when-parked/173187/2 "2020-12-10T01:15:34Z")

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It’s possible you have what’s called a “parasitic draw,” where there’s a constant drain on the battery. It’s also possible the battery is weak and near the end of its life. All newer cars use a certain amount of current even when the engine is off and that might be enough if the battery is marginal. There are a couple of things you can try that don’t involve going to a mechanic. First, try a “trickle charger” that will maintain the battery. There are even solar powered ones. Second, just get in the car and drive it occasionally so the battery doesn’t have a chance to get too far drained.

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**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:** [December 10, 2020, 10:21pm UTC](https://community.cartalk.com/t/2006-lexus-rx-400h-battery-issues-when-parked/173187/3 "2020-12-10T22:21:56Z")

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Here is a link that can help you out with that kind of problem.

> **[Diagnosing A Car Battery That Runs Down](https://www.aa1car.com/library/battery_runs_down.htm)**

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**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [December 10, 2020, 10:28pm UTC](https://community.cartalk.com/t/2006-lexus-rx-400h-battery-issues-when-parked/173187/4 "2020-12-10T22:28:21Z")

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Which battery? The 12V battery or the hybrid battery?