Yuasa NP7-12L. 12v 7Ah rechargeable battery perfect for alarm systems, electric toys, solar power systems, medical equipment, emergency lighting, signage - AliExpress
12V 7AH Lithium Replacement Battery for Yuasa NP7-12T-250-NP7-12T - MightyMaxBattery
Yuasa-NP7-12 Single Replacement Battery 12 volt 7ah(note elite miracle system uses 2 batteries dc 1000 or 2000 uses one)