Amazon.com: LiFePO4 Deep Cycle Battery 12V 100AH Lithium Battery with Over 4000+ Cycles(10 Year Life) and Built-in 100A BMS, Perfect for RV, Campers, Golf Cart, Marine, Solar Home Storage and Off-Grid Application :
Pacco Batteria 6,6v 1600mAh Trasmittente Life 6.6v Ez Power EZP1600-LF | eBay
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Batteria LiFe RX Pack 2/3A Straight 1600mAh 6,6V (EH)