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Amazon.com: Deep Cycle Lithium Ion Marine Battery Group 27 Dual Terminal Replaces Optima D27M Blue Top 900CCA : Automotive
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Amazon.com: VMAXTANKS LFP27-12100 LiFePO4 Li-Iron 12V 100AH Group 27 Rechargeable Deep Cycle Battery with Built in BMS. 4000-6000 Cycles. For Solar, Boats, RVs, Off Grid and other deep cycle applications : Automotive
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