They have needed charging since the beginning. I think, at first, it was every 24 hours regardless. I think it was then changed to 24 hours of use.
In one story Kyle Rayner claims to have gone 9 months without recharging, so it seems rather fluid.
I think if I found out the woman I was sleeping with was an alien I would have some immediate concerns.
An alien construct - basically a really advanced android. I don’t know if that makes it better or worse.
Yes, it definitely is.
Absolutely. The need for recharging, and when/how often, frequently comes down to whether the writer wants to use recharging (or a nearly-out-of-power ring) as a plot device.
SEE ALSO: Spider-Man’s Web Fluid
IOW, it’s their kryptonite.
No, the color yellow was (is? I’m not sure where that stands these days in lore) their kryptonite. Which I always found unfathomably stupid, particularly as it was used even more than kryptonite to artificially create a challenge for Green Lantern. The lantern needing to be charged was a limitation to be sure, if not as bad as Hourman’s, but a lesser one.
The other weakness is that a Green Lantern can’t feel fear or they can’t use their ring. They test this in recruits not just because they need someone brave, but because they literally won’t be able to function if they can be made to fear something.
It was retconned a few decades ago that the reason why the color yellow was a weakness for Green Lanterns was because it was the color of fear (as the Yellow Lanterns embody fear the way Green ones embody Justice), and so its presence would cancel out a ring’s power. (And some crap about the entity Parallax but that’s probably a bit too comic book nerdy for this discussion.) Suffice to say that once they figured out it was the yellow/fear connection, Green Lanterns were trained how to overcome it, because it was purely psychological in nature.
(Again, that’s a retcon; originally it was just “the color yellow” in the Silver Age.)
I meant that it’s their weakness, much like kryptonite is for Superman, who is otherwise invulnerable.
A #2 pencil was real bad news.
There’s also Martian Manhunter, who has a totally random set of ridiculous powers cobbled together over the years because writers decided that it would be really cool if he could do some new thing (the same reason why Superman has so many unrelated powers). His weakness is “fire”. Which has been pointed out multiple times in the comics, “That’s not a weakness; almost everyone’s weakness is fire!”
(Also, confusingly, Martian Manhunter has absolutely nothing to do with the Manhunters created by the Guardians of Oa. He’s an organic being from Mars, not a robot. Though he does share some traits like shapeshifting and high-tech alien gadgets.)
Also, MM has maybe the stupidest origin of any major superhero I can think of… He was accidentally teleported by a scientist from Mars to Earth, but the scientist told him that it would take time to recalibrate the teleportation device to send him back, so he’d need to find a way to be comfortable in the meantime. MM then shapeshifted to a human form, and the shock of seeing that literally killed the scientist, leading MM stranded on Earth for a long time.
There is a retconned origin of all DC Martians and the Guardians of Oa are involved.
Hmmm…does it then follow that if a Yellow Lantern ever stops feeling afraid the ring will cease to function? I mean do they ever have a sudden unexpected moment of valor and suddenly go: “Oh fuck! I need a big-ass centipede to scare me stat or all is lost. Wait!? All is lost? Okay, good I’m scared again. My powers have returned.” Seems…limiting 
.
Or is just when confronted with a sense of justice? “Ah, Hal Jordan you’ve fallen into my trap! Finally you will reap the punishments you so richly deserve! Oh, shit - my ring just stopped working.”
FFS, of course there is.
Kind of, but the other way around. They gain power by causing fear. So, if they fail to scare their enemy, they lose power. The way a Green Lantern is chosen because they don’t feel fear, a Yellow Lantern (or really, member of the Sinestro Corps, as they are known by that more often than “Yellow Lanterns”) is chosen because of their ability to intimidate people.
It’s kind of funny… Originally, the color yellow was the great Green Lantern weakness, so someone with a yellow ring has an advantage. Now, the yellow ring needs someone to be afraid of its wielder, and a Green Lantern who doesn’t feel fear has an advantage. It totally flip-flopped to the opposite situation.
After that last episode, I “cleansed my palate” with the Ryan Reynolds Green Lantern movie (part of the plot is that Ryan’s Hal is immature, so he makes plenty of green toys - including a glowing green Hot Wheels track)!
The connections are via writers and copyrights.
In the 1940s, there was a non-costumed detective named Paul Kirk, Manhunter.
Then there was Rick Nelson, Manhunter, who wore a red-and-blue costume with a light blue facemask. Who the writers later started calling Paul Kirk.
In the 1950s there was the Martian Manhunter. He had green skin, but the blue elements of his costume resembled the blue elements of Paul Kirk’s costume.
In the 1960s, the writers of Green Lantern added the android Manhunters to the Green Lantern mythos. The android’s bodies were red and blue, with light blue faces, strikingly similar to Paul Kirk’s costume.
In the 1980s, they revived the Paul Kirk character (or at least his clone), and wrote a storyline that intertwined all of the above.
See, I thought that film was pretty shit 
. Horses for courses, as they say.
I did too. But I find I can revisit a movie, now that I know it’s going to be shit, and appreciate that there are “less shit” parts.
And I just wanted more GL! (Any of the animated versions worth watching?)
I found that scene exacerbating. Lives are in danger, you catch the crashing helicopter with a giant baseball mitt and end the crisis quickly and safely.
OK. I’m not a comic book reader so maybe i’m missing something here. Why were Hal and John trying to kill/capture Zoe?
She’s not hurting anyone. Arguably, she has dramatically improved the lives of the folk in the town, and they seem to appreciate her substantially and are loyal to her. Yes, there are alines looking for her - she could have dealt with them easily.
The only thing I see the Lanterns accomplished was getting a ton of townsfolk injured or killed, and dramatically reducing the quality of life for those who survived. If they never showed up things would have just chugged along and everyone would have been healthy and happy.
What was the point here? They’re the bad guys.