Mighty Max Battery YTX9-BS Replacement for Jonway YY300T-8 GTS500 YY500 Electric Scooter brand product YTX9-BS is a 12V 8AH 135 Cold Cranking Amps (CCA) Sealed Lead Acid (SLA) Battery Dimensions: 6.00 inches x 3.44 inches x 4.19 inches. Polarity: Positive on left, Negative on right. Listing is for the Battery and Screws only. No wire harness or mounting accessories included. SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover. Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures. Backed by a 30 day refund policy and full 1 year warranty.