# Can Smart shunt IP65 be attached to 800CCA starter battery?

**URL:** <https://community.victronenergy.com/t/can-smart-shunt-ip65-be-attached-to-800cca-starter-battery/33608>\
**Category:** DIY\
**Tags:** starter\_battery, marine, diy\
**Created:** [26 May 2025 00:59 UTC](https://community.victronenergy.com/t/can-smart-shunt-ip65-be-attached-to-800cca-starter-battery/33608 "2025-05-26T00:59:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![marcocaptain](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@marcocaptain](https://community.victronenergy.com/u/marcocaptain)\
**Post date:** [26 May 2025 00:59 UTC](https://community.victronenergy.com/t/can-smart-shunt-ip65-be-attached-to-800cca-starter-battery/33608/1 "2025-05-26T00:59:44Z")

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Is the shunt able to handle that size battery ?

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**Author:** ![pwfarnell](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/pwfarnell/32/2341_2.png) [@pwfarnell](https://community.victronenergy.com/u/pwfarnell)\
**Post date:** [26 May 2025 06:53 UTC](https://community.victronenergy.com/t/can-smart-shunt-ip65-be-attached-to-800cca-starter-battery/33608/2 "2025-05-26T06:53:38Z")

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The shunt sizing is nothing to do with battery capacity but the current going through the shunt. There are many posts where people have used the SmartShunt on a starter battery without any issue, but it may not register the short surge current if it is over the shunts rating.