Cyberpower® RB1290X10 UPS Replacement Battery, 12 V, 9 Ah Power Rating, For Use With OL8000RT3U/OL8000RT3UTF/OL8000RT3UPDU/OL8000RT3UPDUTF/OL8KRT3UHW/OL10000RT3U/OL10000RT3UTF/OL10000RT3UPDU/OL10000RT3UPDUTF/OL10KRT3UHW/BP240V50ART3U