Shorai Xtreme-Rate LifePO4 LFX Standard Battery LFX18A2-BS06 Shorai LFX batteries come in a variety of case shapes and sizes, capacity options and right/left polarity options for the best possible fitment. If the LFX is slightly smaller than the original battery in one dimension or another, high-density, adhesive-backed foam sheets are included in the package. These can be trimmed and applied to the battery box in minutes to make a solid fit and with added thermal and vibration insulation. Cable connections can be made either at tops or sides of the terminals. All these options and sizes allow Shorai LFX to offer a drop-in installation for most powersports vehicles.