2.It has perfect overcharge, overdischarge, overcurrent and short circuit protection.
3.It is widely used in fingerprint attendance machines, fire safety systems, security monitoring systems, access control systems, cameras, video cameras, portable DVDs, etc.
4.It's easy to carry around and put it in your bag/car.
5.Support two devices to supply power at the same time, but the sum of the current values of the two devices must be 2A. Uninterruptible power supply is a kind of backup energy storage power supply.