2pcs 602540 3.7v 500mah li battery composite to 1pcs 122540 7.4v 500mah li batteries ! Standard Capacity :7.4v 500mAh 3.7Wh. Fit forall kinds of helicopter models JJRC H11C H11D RC FPV RC Drone. battery Size 1.2cm(thick) × 2.5cm(width) × 4cm(length).
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