When entering or inside the hab, make it possible to restock your suit without going outside, either by a control panel or some message popping up. Reason for this is that maybe you enter the hab when it's day outside, thus oxygen and battery reserves are full for the hab, but you might want to spend time inside to sleep, craft or eat/drink. You then want to take advantage of the daytime by stocking up the suit so the hab can begin to refill what you've taken, but going in and then outside and going in again is sort of annoying. There have been times where I've not thought about this, went inside, wasted time so it became dark outside, and then when I was ready to leave I accidentally drained my hab of a lot of resources. Most problematic is energy since everything uses that and the suit battery is 1:1 to the hab's battery, so a suit with only 20% energy sucks away 80% of the hab and then it's not long until everything becomes powerless and you can't do a lot.
Or even better just have the hab continue to refill the suit once the reserves are at 100%
Customer support service by UserEcho