Main application is this is the same size as the standard Yamaha Waverunner Battery in 1800 Yamaha FX Waverunners. You can upgrade FX160 VX etc. to this Battery. Motobatt Quadflex Batteries , the first and unique 4 terminal system, proposes the best balance between CCA and Amp hour capacity. Due to utilizing the wasted space inside a standard battery case, Motobatt maximizes the dimensions of the plates internally. Additionally, the plate grids are made thicker, and that with the additional density of the pasting improves the Amp Hour capacity, durability and Cold cranking Amps. Motobatt has completely changed the Powersport market by improving an old design. Features 20% More Amp Hour capacity* 20% More Cold Cranking Amps* Heavy Duty Pure Lead Calcium cast grids for high strength More surface area per plate for superior performance and longevity Military grade Absorbed Glass Matt separators, vibration resistant Multi Terminal Design, Easy to add accessories Factory Activated, No Acid to fill, simply check charge and go! Extremely low self-discharge rate 12 Month Full Replacement warranty Replaces the following Batteries Yuasa YTX20, YTX20L, YTX20BS, YTX20HBS, YTX20LBS, YTX20HLBS, YTX20HLBSPW, YTX20H, YTX20HL, YTX20HL-PW, YB16A, YB16A2, YB16B, YB16B2, YB16HLACX, SYB16LB, YB16LA, YB16LA2, YB16LB, YB16LB2, YB16CB, YB16CLB, YB16BCX, GT16L-BS, GT16BS, CTX19-BS CTX19L-BS , GYZ20H, GYZ20L, GYZ20HL DEKA ETX16, ETX16L, ETX20, ETX20L ODYSSEY PC535, PC625 Specifications Battery TypeMBTX20UHDVoltage12CCA320MCA395APHCA605ACapacity (10HR)21Ah, C20 22.3AhWeight6.50kg / 14.33IbsDimensions (in / mm)L: 6.89(175) W: 3.43(87) H: 6.10(155) TW: 3.94(100) TH: 6.89(175)Assembly Figure Terminal Locations4Terminals2x Blocknut M6 (PART MPN2)Screws2x Screws M6x12 (PART MPS4)Terminal Caps2 Black, 2 Red PART (MPC3)Spacer2, 20mm Bottom (Part# MPBS7), 13mm Back (Part# MPSS)