Beiter DC Power Solex SB1240 12V 4Ah Alarm Battery Replacement (12V 5Ah - Higher Capacity Replacement - Lasts Longer Than Original!)

Used to update my alarm system.Then used it as a replacement battery in my chamberlain garage door opener.Worked well both situation

Honestly,i dont know what's going on. Neither the said bought new battery and just purchased transformer doest work. Transformer seems warm when plugged in with hummering sounds.Guessed that's how it itends to work.But overal,my alrm system doesnt comes on at all! I might probably install a complete whole unit than above.

Seems to be working fine. No more low-battery alarms.

Very nice product which worked perfectly and easily to get my home alarm system back in working order. Thank you!

Perfect

it worked to replace the one in my security alarm

So far it's working great, thank you.

Practice