orlife Mobile Battery For Vivo Y21, Y21s, Y31 | B-S1/S2 ( 1 Year Replacemant Warranty )
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New Batteries Must Be Fully Charged and Fully Discharged 3 to 5 Times, Before Being Fully Conditioned. Please Remember That a New Battery's Full Performance and Longevity is Only Achieved After 3 to 84 Complete Charge and Discharge Cycles.
