SMAKN Backup Uninterruptible Power Supply UPS AC 110V-240V to DC 13.5V 12 Volt 7AH Battery Charger 1.5A

Input voltage: 110V-240V AC, 50/60Hz
Output voltage: DC 13.5V
Output Power: 18W
Dimensions: 90 * 52 * 30mm
With battery interface, the maximum can be equipped with 12V7AH battery?the output voltage is adjusted to 13.5V?
With UPS function, control battery charging status automatically.
Single output, it can switch to battery power automatically as battery detecting, protecting, power cuting
With protections of short circuit, overcurrent, overvoltage .
Connection:
G: Ground
N: null line.
L: Live line
V +: load +
V - : load -
C terminal: no connection

Package Include:
1x AC/DC UPS Charger Power Supply