Modern lithium ion batteries usually prefer the range of 40-80%. Staying for long periods of time at 100% or 1% will significantly reduce the lifespan of your battery.
Will going down to 1% every now and then hurt your battery? Not terribly but ... avoid it if you can.
Manufacturers take a conservative approach and specify the life of Li-ion in most consumer products as being between 300 and 500 discharge/charge cycles.…
batteryuniversity.com