# 1961 Corvette battery gauge reads negative

**URL:** <https://community.cartalk.com/t/1961-corvette-battery-gauge-reads-negative/143858>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, corvette\
**Created:** [July 7, 2019, 7:40pm UTC](https://community.cartalk.com/t/1961-corvette-battery-gauge-reads-negative/143858 "2019-07-07T19:40:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![RobertMahoney](https://avatars.discourse-cdn.com/v4/letter/r/a88e4f/32.png) [@RobertMahoney](https://community.cartalk.com/u/RobertMahoney)\
**Post date:** [July 7, 2019, 7:40pm UTC](https://community.cartalk.com/t/1961-corvette-battery-gauge-reads-negative/143858/1 "2019-07-07T19:40:47Z")

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1961 corvette battery gauge reads slightly negative when driving. Just installed a new battery. A problem?

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**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:** [July 7, 2019, 7:45pm UTC](https://community.cartalk.com/t/1961-corvette-battery-gauge-reads-negative/143858/2 "2019-07-07T19:45:26Z")

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Yup, a problem. Check the generator (or alternator) output. Check voltage at the battery when the car is running. It needs to be more than about 13.5 volts. A generator may need you to rev up the engine to 2000 rpm or so to get that reading.