# UPS module 12V, lithium battery 3.7V

- Page: https://sigmanortec.ro/en/ups-module-12v-lithium-battery-37v
- Price: 15.17 RON
- Availability: In stock; 1-2 zile
- Reference: 33392 · EAN: 5945765195019
- Category: Electronic components > Modules for Batteries > UPS Modules
- Specifications: Technology: Lithium Ion; Source Type: high; Input Voltage: 3.7 V; Output Voltage: 12 V; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.006 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:22 (Europe/Bucharest)

## Description

Compact 12V backup solution for equipment, boosts the voltage from a 3.7V Li-ion battery to 12V and charges the battery from a 5-12V supply, automatically switches to battery when voltage drops and returns to charging when re-powered. Provides up to 9W with 1A peak current, supports 1S batteries up to 8Ah by default or 15Ah via jumper, dimensions 50x20x6.3mm.
UPS module voltage booster from 3.7V lithium battery to 12V.
The module charges the lithium battery and automatically switches to it when the power supply is interrupted. When power is restored, the module will recharge the battery.
Input voltage: 5 - 12V
Battery: 1S, 3.7VDC, Lithium (e.g., 18650)
Output voltage: 12VDC
Output power: 9W
Maximum battery capacity: 8Ah default, 15Ah by setting jumper 2
Operating temperature: -40°C - +85°C
Operating humidity: 0-95%RH
Dimensions mm: 50 x 20 x 6.3mm
Instructions:
1 - Connect power supply voltage to input
2 - Check output voltage with a voltmeter
3 - Connect battery to B+ and B-
Additional information:
Maximum output current with peaks of 1A.
Connecting the power supply with reversed polarity will damage the module. Please double-check + and -.
Supports connecting a common anode, bicolor LED that indicates battery status. Flashing red signals battery absence.