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Home Rechargeable DC 48V 50ah 100ah Battery Module Solar Energy Storage Lithium Battery. 10 Years Limited Warranty: Covers defects in materials and workmanship for 10 years. Long Cycle Life: Reliable LFP cells guarantee over 8000 cycles. High Energy Efficiency: Charge and discharge efficiency exceeds 95%. Smart Digital Monitoring: WIFI-enabled APP for iOS/Android with remote OTA upgrades. Flexible Assembly: Freely assemble in series or parallel up to 8S8P configuration. Enhanced Safety: Dual hardware and triple software protection with relay design. High Rate Charge/Discharge: Nominal 0.6C, Max 0.8C for rapid energy transfer. Quiet Operation: Natural cooling system without fans for silent performance.