Regular Li ion has more recharge cycles than most lead acid batteries that come with UPS. Even high power density liion still usually has 4-500 recharge cycles

Regular Li ion has more recharge cycles than most lead acid batteries that come with UPS. Even high power density liion still usually has 4-500 recharge cycles before reaching a maximum of 80% SOC vs the original capacity. With smarter power management you can get away with much more (for example, if you don't fully cycle the battery)