You can use this here:

https://www.amazon.com/dp/B0B3J8QW9X?

But I found a great workaround (for me) is not bringing the charger. 45 minutes is usually good enough for 12 days of travel for me.

If it's longer than 12 days, bring your PRIMARY good shaver, despite the weight. Because you need it at that point.

TLDR, if it's 14 days or less don't bring the charger.

If it's 14 days or longer bring your primary.