Amazon.com: 12V 48Ah (2 pack) Rechargeable LiFePO4 Lithium Iron Phosphate Battery with 3000+ Times Deep Cycles and BMS Protection for Fish Finder, Ham Radio, Scooter, Trolling Motor, Light, Kids Car (2 Pack) :
SPARKEL 12V 48Ah Lithium Iron Phosphate LFP Rechargeable Metal Battery Pack for Computer UPS Supports up to 600-800VA. : Amazon.in: Computers & Accessories