No idea about anything automated for it but my understanding is that you really can't prevent the problems. I think I read that 70% is more ideal thoguh, becau

No idea about anything automated for it but my understanding is that you really can't prevent the problems. I think I read that 70% is more ideal thoguh, because it will keep a charge longer in the better range for the chemistry. The real problem is that the chemistry itaelf of the batteries will slowly and irreversibly break down over time whixh is why once it discharges past a certain point it may not be safe ever again to charge the battery without reprocessing the materials into a new battery. The safest way is really to remove the battery entirely and replace it once you're wanting to use it again. This might also make it easier to keep the battery at a safe charge level if you can find something else to handle it.