NEW MAZDA BT-50 3 5 6 CX-7 MX-5 RX-8 BUTTON REMOTE KEY FOB BATTERIES CR1620 make sure yours is an 1620 not a 2032 Many remotes have more than one variant so your remote may not take this battery youhave to check Only for the remote shown will probably not fit any others Alternative battery types BR1620 , DL1620 , ECR1620 , KCR1620 , KL1620 , KECR1620 , LM1620 , 5004LC , SB-T15 , L14 , SR1620 , EA-1620C So to recap, it may be that YOUR remote version or board revision May take another size PLEASE manually check your battery is 20mm wide if its smaller or larger then this isn't the battery for you Technology Lithium Voltage 3 V.
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