it all depends on how much heat is generated during charging. If the internal resistance is low, then not much heat, and you can charge it at much higher currents -- that means "faster".
Part of the problem with the present generation of batteries is that they generate a lot of heat when being charged, and you dare not let them overheat, so you are limited in how fast you can charge them.
True, but there’s a limit to how much current a household can draw, which could be the true limiting factor to recharge time. 1,000KM is a lot of drive time hours, so it has to hold a lot of KWH.
“Memory” is another factor. IF the new battery is not affected by that affliction, then one could drive 4 hours; stop for an hour to eat, while leaving it on a charger to partially recharge. Or, could replenish a partially depleted battery nightly, after the daily commute.
If it IS so afflicted, then trips would need to carefully planned so that it runs out of juice where you wish to spend the night, and are able to give it full charge.
I recharged an alkaline battery using a car battery. It could only be connected for a few seconds. Even at that it got hot. But, what was a dead battery before had enough juice to power a radio again. Figured it was too dangerous to do so only tried it a coulpe of times.
Im guessing the 12 volt car battery was too much too quick for an alkaline battery which is why it got too hot to touch based on the explanation you offered in your post.
All that heat is wasted energy, reducing the efficiency of the whole process. So a battery that charges with low heat would not only be safer, it would be a lot more efficient.