GEILIENERGY300-03864-1 1100mAh Backup Battery Compatible for ADT ADI Ademco Lynx WALYNX-RCHB-SC Honeywell Lynx Touch K5109, L3000, L5000, L5100(1 Pack)

Everything working. Easy to order snd shipped quickly.

No problem installing. Make sure you check wire length. This one was a little short but I made it work.

product arrived as described and in time frame expected. It's a back up battery for an alarm system. It tested fine and seems to have charged within a reasonable amount of time after installation. All appears to be fine with this purchase. We wont know until the power goes out and is down for 24 hours if the claims made by the seller are true, but based upon what I have seen so far, I suspect that they are legit.

Bought this battery pack as a replacement for the battery pack in my alarm panel. This was suggested by technical support at my alarm company, in lieu of a $59 visit to install new battery pack. It just snapped in & was very easy to do.

Worked perfectly and easy to use

Placed battery in the product and it's saying low battery. It is beeping worse than the old battery I had in. So, battery must be defective. It needs to be replaced.

This was a replacement for our security alarm. It seems to work well. T.hey seem to eventually wear out but have lasted 7-8 years.

Just as described, good price.

Package come earlier then expected. Battery work well. Took about 4 hours to reset my low battery on alarm system.

Quick and easy to install and no more beeping.

everything ok