1. Using spring thimble interface design, suitable for Zero series motherboards 2. The onboard lithium battery charging chip supports dynamic path management and power supply is more stable 3. The onboard boost chip can provide a stable 5V voltage output 4. It can communicate through I2C interface, measure battery voltage, current, power and remaining power and other parameters, and detect working status of module in real time 5. The onboard battery protection circuit prevents overcharge, overdischarge, overcurrent and short circuit, and work is stable and . Onboard charging indicator, easy to check battery working status UPS HATC is an uninterruptible power supply UPS expansion board specially designed for Zero series, onboard switching lithium battery charging chip with path management, boost chip and voltage and current monitoring chip, which can pass 12C interface Monitor battery working status. Product name: UPS power supply module Output voltage: 5V Charging power supply: 5V Control interface: I2C Battery specification: 803040 polymer battery 1000mAh 3.7V Through hole diameter: 3.0mm Due to different batches, there may be differences in product appearance and printed text, which not affect use Color: As Shown Material: PCB+Metal Package Contents: 1 x UPS module 1 x lithium battery 1 x screw pack Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.