# Trying to identify this

**URL:** <https://community.cartalk.com/t/trying-to-identify-this/150480>\
**Category:** Maintenance/Repairs\
**Created:** [October 11, 2019, 4:35am UTC](https://community.cartalk.com/t/trying-to-identify-this/150480 "2019-10-11T04:35:40Z")\
**Posts on this page:** 5\
**Page:** 2

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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:** [October 12, 2019, 3:13am UTC](https://community.cartalk.com/t/trying-to-identify-this/150480/21 "2019-10-12T03:13:12Z")

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Do you have a volt meter? If so, make some voltage measurements at the battery. Before the first start of the day, should be about 12.6 volts. Then immediately after starting the engine, 13.5-15.5 volts. What do you measure?

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**Author:** ![Shannon\_Crawford](https://avatars.discourse-cdn.com/v4/letter/s/d2c977/32.png) [@Shannon\_Crawford](https://community.cartalk.com/u/Shannon_Crawford)\
**Post date:** [October 12, 2019, 8:23am UTC](https://community.cartalk.com/t/trying-to-identify-this/150480/22 "2019-10-12T08:23:03Z")

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Idk I cant start it without jumping it unless I take to to autozone to get recharged the battery completely dead

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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:** [October 13, 2019, 12:41am UTC](https://community.cartalk.com/t/trying-to-identify-this/150480/23 "2019-10-13T00:41:04Z")

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Battery chargers are pretty inexpensive. If you intend to diy’er work on your car, this is an essential tool.

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**Author:** ![Shannon\_Crawford](https://avatars.discourse-cdn.com/v4/letter/s/d2c977/32.png) [@Shannon\_Crawford](https://community.cartalk.com/u/Shannon_Crawford)\
**Post date:** [October 13, 2019, 9:03pm UTC](https://community.cartalk.com/t/trying-to-identify-this/150480/24 "2019-10-13T21:03:18Z")

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Oh ok I’ll get one I had no idea I was thinking the cheapest would be somewhere around 150 to 300

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<div class="post-metadata">

**Author:** ![Shannon\_Crawford](https://avatars.discourse-cdn.com/v4/letter/s/d2c977/32.png) [@Shannon\_Crawford](https://community.cartalk.com/u/Shannon_Crawford)\
**Post date:** [October 13, 2019, 9:07pm UTC](https://community.cartalk.com/t/trying-to-identify-this/150480/25 "2019-10-13T21:07:23Z")

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So just found out the battery that came with the rv although it’s in good shape it’s a marine battery does that make a difference with alternator charging it?

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