Beiter DC Power UltraTech UT-1240 12V, 4.5Ah Rechargeable High Performance Replacement Sealed Lead Acid Alarm Battery UT1240 ISO9001

I've been using UltraTech for years ... purchased from different vendors but none of them seemed to last more than a year or so. The bigger issue is that if our power went out, the UltraTech would be dead and never could really hold a charge again. (It was then fun having the LowBat alarm going off in the middle of the night.)I took a chance on this brand bc of the reviews, and it's been great -- even through a prolonged outage.Recommended!

My experience with this type battery has been very good. Purchased for a considerably less cost on Amazon. Easy to install and a good battery life. Will definitely purchase from Amazon again.

Battery was delivered as promised, installed in my security system and warning light immediately reset meaning to me it was fully charged. Very satisfied, recommend you consider. Can't comment on the longevity since it just arrived.

I bought this for my husband for work, and it does the job. So he's happy.

We use this as a battery backup for our alarm system. Works as expected

Great battery compared to the UltraTech battery it replaces.

Perfect fit and a much better price here than from other places. Works well and replaced the old battery in alarm system without any problems.

My home alarm system has been in place for over 10 years and the battery that is part of the system finally gave out. I replaced the old battery with this UltraTech UT-1240 and it works perfectly. It is as though I now have a new system.