Revive your battery easily, even in extreme situations and with few tools, as an example I use the RTX 150 battery (this applies to any lead-acid battery) that has already reached the end of its useful life and is not capable of start the motorcycle by electric start, but very easily we managed to revive it for a few more months just by adding water for batteries; It could also be done with normal water, but this would take away a lot of useful life and it would be unusable in a matter of days or hours, so only non-actuated water should act for batteries in extreme cases.