Solar Powered Battery trickle charger

[Julian987]

Hi

Due to lockdown and workload, I have not been able to drive my R for a good 3 weeks now. 
I am not very clued up on cars and wondered if anyone could help advise if which of these would be suitable to my Cayman R battery (the stock one, not the light weight battery)

https://www.amazon.co.uk/Powered-Battery-Charger-Caravan-Package/dp/B07P7C6QLD

or

https://www.amazon.co.uk/AA-Essentials-AA1432-Battery-Charger/dp/B084M5ZL5L

or

https://www.halfords.com/motoring/battery-maintenance/battery-accessories/12v-6-watt-solar-maintainer---upto-200ah-196489.html

or

 

https://www.amazon.co.uk/ALLPOWERS-Maintainer-Cigarette-Automobile-Motorcycle/dp/B073XK9KC3

 

They seem to vary in amps and don't want to set my car on fire! 

Any advice would be much appreciated.

Best regards

Julian