The 1000 cycle charge life relates to full cycle charges not each time you plug it in. IE if the battery is 50% charged and you charge it to 100% that is half a charge cycle, repeat it again and you now have 1 full charge cycle. Apple state an 80% battery charge retention at 1000 cycles and give a one year warranty. It’s also worth adding that high temperatures will also shorten the life of the battery.
Reiterating what I said earlier lithium batteries can explode, in any device, it’s not just Apple devices that are affected.