Sealed Lead Acid battery. 2 contacts on top. 12 Volt SLA UPS Battery. Fits models; Best Technologies Fortress LI460VA B, CyberPower Systems CPS375SL, Deltec PRM1500A, Exide PowerWare 1000K, Fenton Technologies PowerPal L280, Fenton Technologies PowerPal L660, Leadman LU-550, Para Systems Minuteman MBK300, Para Systems Minuteman Pro 200,