update( 3/26/13): just received 2nd battery ( for my other UPS ), 100% satisfied with this purchase too ( Like 1st order bat was at 60% but 1 1/2 hrs after charging, it is fully charged and my UPS is working like new again. FYI there is a 10% coupon on new battery for future purchases ) Very easy to replace old battery on my UPS un plug, unscrew 1 screw, tilt UPS so bat. slides out, pull off black & red wires from old battery and clip on new then close up, plug back in and rest UPS by holding down power button, YOUR DONE!!
(3/11/13) Ordered from Ecomeletronic, with free shipping arrived 5 days later, fits perfectly, battery was not fully charged ( at 60% ) but a few hour installed in my UPS and all like new again. Bought to replace a 2 yr dead battery for my TrippLite UPS. Very happy with the whole process, will order a second from this seller,as my 2nd UPS needs a new battery too, with free shipping I wanted to know it fit before buying 2. Perfect fit for the Tripp Lite G1000U 12A, series AGOM7057.