美国采购需求：6FM4.5电池，12V4.5Ah电池，可充电6FM4.5，铅酸12V4.5Ah，6FM4.5密封电池，6FM4.5免维护

I'm in need of a replacement battery for my son's ride-on toy, as the current one no longer holds a charge. The vehicle came with a specific type of sealed lead-acid battery that I'm looking to order. Could you provide me with details on the options available? Additionally, please let me know if you require any further information from my side to facilitate the order process, such as specifications or quantities. Your prompt response would be greatly appreciated, as I'm eager to get this resolved soon. Thank you!