# Quattro how old

**URL:** <https://community.victronenergy.com/t/quattro-how-old/41635>\
**Category:** DIY\
**Tags:** beginner, quattro\
**Created:** [1 August 2025 14:00 UTC](https://community.victronenergy.com/t/quattro-how-old/41635 "2025-08-01T14:00:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sm0xzm](https://avatars.discourse-cdn.com/v4/letter/s/b4bc9f/32.png) [@sm0xzm](https://community.victronenergy.com/u/sm0xzm)\
**Post date:** [1 August 2025 14:00 UTC](https://community.victronenergy.com/t/quattro-how-old/41635/1 "2025-08-01T14:00:51Z")

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Can anyone tell me how old this Wuattro is?

 ![IMG_0698](https://europe1.discourse-cdn.com/victron/original/3X/0/2/0224417c2f133057e62ba0f95ce66ec8dd1367e3.jpeg)

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<div class="post-metadata">

**Author:** ![lxonline](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/lxonline/32/25567_2.png) [@lxonline](https://community.victronenergy.com/u/lxonline)\
**Post date:** [1 August 2025 14:25 UTC](https://community.victronenergy.com/t/quattro-how-old/41635/2 "2025-08-01T14:25:49Z")

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@sm0xzm  
Look for the number that starts with HQ…

After HQ you have 4 digits: HQYYWW…  
YY - year  
WW - week of the year.

[Possibly this may help](https://communityarchive.victronenergy.com/questions/47042/how-do-i-interpret-serial-numbers-especially-multi.html) if there is no HQ number.