In fact, many UPS now also use lithium batteries, which can be integrated into standard racks. However, due to the limitation of volume, the battery capacity will not be very large. Correspondingly, the result is that the backup time is not long enough, and the rated backup time is maybe five minutes. Make sure that the server can be saved and shut down normally, or wait until the engine is powered on. But by 2022, in the current mainstream application solutions (95%+), UPS is still used in conjunction with lead-acid batteries. ATO uninterruptible power supply batteries are lead-acid batteries.

