That should be fine as the containers are small so won't need huge draws of water daily. You can put multiple drippers per plant, the 25L unit can use up to 20 drippers, you basically take the number of plants and divide that into the 20 drippers. So 5 plants = 4x drippers per plant which should be plenty of water on their low setting, that should last you 2 weeks no problem.
I forgot and was wrong when I said I'd only used them for a week at a time. I went for a 2 week vacation in February (1st 2 weeks at once in 30 years!). I left 4 drippers per plant x 4 plants on high setting. Gave them a good soaking before leaving and they were fine when I got back. Was close, another 2 days they may not have made it, but on the setting I used the manual told me it would last about 12 days which it did.
