How to Add Excerpt to Woocommerce on different pages limited by characters

Hi,

I want to add the excerpt element on different pages :

– archives page
– single product page

I found some help on this topic :

https://wordpress.org/support/topic/how-to-add-excerpt-to-woocommerce-archive-page/

so I inserted this code and it work perfectly :

//Excerpt Archives
function display_desc_in_product_archives() {
   the_excerpt();
}
add_action( 'ocean_after_archive_product_image', 'display_desc_in_product_archives' );

//Excerpt Single Product
function display_desc_in_single_product() {
   the_excerpt();
}
add_action( 'ocean_after_single_product_title', 'display_desc_in_single_product' );

With this code excerpt is too long on some products, limited by words is not a good solution : excerpt can be really different according to certain products with long words.

I just want to known if it possible to limit them by characters and with a different limits between this two pages it will be helpful (a longer limit on single product page, and a shorter on archives)!

Thanks.