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12V 40Ah 18650 lithium battery pack + 12.6V 3A charger, built-in 30Ah high current BMS, used for sprayer, 12V power supply - AliExpress
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Amazon.com: KEPWORTH 12V 40Ah LiFePO4 Battery Deep Cycle Lithium Iron Phosphate Battery Built-in BMS Lightweight Maintenance-Free Perfect for RV/Camping, Solar/Backup Power,Trolling,Motor/5-Years Warranty : Automotive
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