UPS Raspberry LI-T-3P LX-2BUPS 15W 5V 9V 12V 18650

Box for UPS Uninterruptible Power Supply

LI-T-3P-d aether or LX-2BUPS

2 types of top with 4 screws:
M3x10, max M3x28 (allen head screw )
or 
M3x14, max M3x34 (countersunk head screw)

Max 15W 3A with 2x 18650 Lithium Li-po Li-ion
Battery Charger Module DC-DC (4.2v)
Step Up Booster to 5v, 9v or 12v
Protection Integrated 
Power Converter

https://it.aliexpress.com/item/1005005195434497.html