12WA-DC Mini UPS Datasheet
Overview
Description
The 12WA-DC Mini UPS is a reliable standby power supply with li-ion cells. It is specifically designed for our LoRaWAN gateway (or IoT Devices) with 12V DC input. It features a high-grade battery charging BMS IC with constant-current/constant-voltage for optimal performance.
The Mini UPS is equipped with robust over-charging, over-discharging, over-current, and short-circuit protection mechanisms to ensure the safety of your devices.
This Mini UPS ensures that your equipment remains powered on for 1.5-2 hours during a power outage. It's the ultimate solution to keep your devices running seamlessly, even in challenging circumstances.
Features
- Rated Capacity：19.2 Wh
- Input Voltage: 12 VDC ±5%
- Input Current: 1 A ±0.2 A
- Output Voltage: 12 VDC ±5%
- Output Current: 1 A
- Working Temperature:
- Charging：0° C ~ +55° C
- Discharge：-20° C ~ +55° C
- Net Weight: 146 g
- Dimension: 100 x 50 x 24 mm
- Output DC jack - barrel type 5.5*2.1 mm
Specifications
Overview
Figure 629: UPS 12WA-DC Mini overviewFunctional Diagram
Figure 630: UPS 12WA-DC Mini function diagramHardware
Interfaces
Figure 631: UPS 12WA-DC Mini interfaces| Number | Label |
|---|
| 1 | On/Off button and LED Status Indicators |
| 2 | 5.5 x 2.1 mm DC Input Port |
| 3 | 5.5 x 2.1 mm DC Output Port |
LED Indicator Status
| Symbol | Description |
|---|
 | RED ON: The UPS is charging.
RED OFF: The UPS is fully charged. |
 | BLUE ON (without input): The UPS is not receiving input power but is providing power to the connected device. |
 | BLUE ON (with input): The device is powered by the main supply, and the UPS is not releasing energy. |
 | RED ON (low power): The UPS is in a low power state. |
On/Off switch and working modes
| Mode | Description |
|---|
| Switch ON/OFF | Controls the power state of the UPS. |
| When UPS is fully charged and input powered | The UPS automatically switches on when it receives input power and its battery has sufficient charge. If load is connected, the UPS enters work mode automatically. |
| Switch ON (no input) | Press once to switch on the UPS when there is no input power. |
| Switch OFF (no input) | Press twice consecutively to switch off the UPS when there is no input power. |
Electrical Characteristics
| Item | Technical Requirements | Remarks |
|---|
| Input voltage | 12 V ± 5% | - |
| Input current | 1 A ± 0.2A | - |
| Output voltage range | 12 V ± 5% | - |
| Output current range | 1 A | - |
| Output power | 12 W | - |
| Charging transfer efficiency | ≥75% | - |
| No-load voltage range | 12 V ± 5% | - |
| Discharging transfer efficiency | ≥88% | - |
| Over-discharged protection (battery) | 2.7 V ± 0.2 V | - |
| Over-charged protection (battery) | 4.3 V ± 0.025 V | Over-charged release 4.15 V |
| With load current (battery) | 1 A | - |
