The YT9B-BS battery for Motorcycle ATV Scooter is a sealed lead-acid (SLA) absorbed glass mat (AGM) rechargeable battery. AGM and GEL batteries are lead-acid and ofthe same battery chemistry. This battery comes already charged, sealed, maintenance free, and ready to install. Premium quality absorbed glass mat technology (AGM) is ideal for ATVs, motorcycles, personal watercraft, jet ski's, snowmobiles and more. Battery dimensions: (L)5.88 in x (W) 2.75 in x (H) 4.19 in Weight: 6 LBS Replaces: MS12-9B-BS, LT9B-BS, YTX9B-BS, ES9B-BS, YT9B-BS. 2 year warranty and a 30 day money back guarentee.