ExpertPower EXP612-1.2Ah 6V Rechargeable Battery, Alarm Battery Replacement for Security System, Home Alarm, GE XT Backup, Replaces DJW6-1.2, 6V1.3AH 1.4AH, Sealed Lead Acid, F1 Terminals

Bought two batteries back in May of 2019 and installed the first one in 5/28/2019. I just had to replace it today. Exactly 6 years later, to the date, I installed the 2nd battery and placed an order for another battery so I have one in hand.

Good product fits perfectly

So far, so good. The original battery lasted 14 months before it quit taking a charge and had dropped to 4.5 v. Apparently, they need to drop below 5.4 v before the charger kicks in. Mine never would take a charge and hence the low battery alarm ran continually. I then shut the whole system down until I received this new battery.To test the current charge, press and hold #6 for about 10 seconds. The system will then display the current charge in the battery. If it's 5.4 v or higher you're good to go.IMPORTANT - Google how to change the battery! SERIOUSLY!It's tricky, but not impossible. Actually not that bad, but had I NOT done this I could very easily have ruined the unit. Mine wasn't EXACTLY like the video, but close enough so that by being careful I could swap it without any problems.I powered the system up and pressed #6. Voila! It was showing 6.3 v and the constant beeping (low battery alarm) was gone. It now seems to be holding steady at 6.6 v and the system is working fine.If your battery is failing, seriously consider going this route. It's cheaper through Amazon (no security company markup) AND no service call fee! It really isn't hard. Just watch the video and watch what you're doing. You'll be fine.I am quite pleased with both the battery and with Amazon's service. Mint condition, undamaged shipping (USPS) and it arrived several days sooner than expected. Nice! I'll be back, guys. Count on it.Sincerely,Bill Ogburn

This battery was dead on arrival. I installed it in my alarm system and one day later, my alarm system still didn't recognize that there was a battery in it.

This battery works well as a replacement for my old one. It’s reliable, easy to install, and holds a charge effectively. Overall, a solid choice for anyone needing a dependable rechargeable battery.

Bought to replace the battery in my Simon XT security panel. No issue with it, the fit is perfect and it immediately cleared my low battery notification once installed.

This battery was for my alarm system. After one month it reported a low battery. I tried returning but the window was closed. I contacted the company and they couldn’t find my order number through Amazon. Tried having my system tested through my alarm company. It is the battery. The company I purchased the battery from said, after and hour with them, they would replace the battery but we would have to pay shipping. I’m not paying shipping. Would not purchase through them again.

Replaced the internal LA battery with this one. As long as the power supply is around 7V open current, it charges fine. Had to bend the terminals on the battery a bit to get them to solder on to the board well.