Ice cap battery back up modification

[tundraguy1106]

Any of my tech guys on here know if you can modify an ice cap battery back up to support a non ECOTECH pump. I tried making my own for an ecotech L1 which worked well for a while till a power surge fried my batteries but now I’m just looking to purchase an ice cap and either hook up my Amazon brand return pump or my AI NERO. My L1 also took a recently so I just bought a decent Amazon brand one in a pinch. Now I’m concerned about power outages

Thanks