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CRUST Smart Mini UPS for WiFi Router and Modem. Upto 4 Hours Power Backup. Replaceable EV Grade Li-Ion Battery. Supports 9V & 12V Routers, CCTV, Set Top Box, Access Control : Amazon.in:
![Old alkaline household batteries leak a white crusty substance made of potassium carbonate (K2CO3 Stock Photo - Alamy Old alkaline household batteries leak a white crusty substance made of potassium carbonate (K2CO3 Stock Photo - Alamy](https://c8.alamy.com/comp/FJTPC7/old-alkaline-household-batteries-leak-a-white-crusty-substance-made-FJTPC7.jpg)
Old alkaline household batteries leak a white crusty substance made of potassium carbonate (K2CO3 Stock Photo - Alamy
![Old alkaline household batteries leak a white crusty substance made of potassium carbonate (K2CO3 Stock Photo - Alamy Old alkaline household batteries leak a white crusty substance made of potassium carbonate (K2CO3 Stock Photo - Alamy](https://c8.alamy.com/comp/FJTPD4/old-alkaline-household-batteries-leak-a-white-crusty-substance-made-FJTPD4.jpg)