# Charge battery while still in car?

**URL:** <https://community.cartalk.com/t/charge-battery-while-still-in-car/100739>\
**Category:** Maintenance/Repairs\
**Tags:** dodge, ram50\
**Created:** [March 4, 2017, 2:52am UTC](https://community.cartalk.com/t/charge-battery-while-still-in-car/100739 "2017-03-04T02:52:37Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![ChristopherASA](https://avatars.discourse-cdn.com/v4/letter/c/e47774/32.png) [@ChristopherASA](https://community.cartalk.com/u/ChristopherASA)\
**Post date:** [March 17, 2017, 9:31pm UTC](https://community.cartalk.com/t/charge-battery-while-still-in-car/100739/21 "2017-03-17T21:31:15Z")

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I don’t know if I ever thanked your for posTing here to try and help me, especially the multi-paragraph explanation about doing the draw test. So, THANK you!

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [March 17, 2017, 11:54pm UTC](https://community.cartalk.com/t/charge-battery-while-still-in-car/100739/22 "2017-03-17T23:54:54Z")

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One poster here came up w/ a clever idea of using an infra-red thermometer gadget to isolate which circuit is the cause of the draw… Apparently you point it at each fuse and measure its temperature. The one with the highest fuse temperature is the first circuit to suspect.

[Previous page](https://community.cartalk.com/t/charge-battery-while-still-in-car/100739.md?page=1)