battery charging with a difference

jonno12 · 15th May 2017, 15:11

unusual battery charging question
hi folks, as above, now i believe my house alarm battery is dying, now although it is 12v will my charger charge it or blow it to pieces' as it's so small, or do I need a household charger of sorts.it says it's valve driven would that be no no I bought a new one last time and will do so if ness. but it does say rechargeable

Avulon · 15th May 2017, 15:36

Your battery is valve driven? As I understand home alarms the battery is charged as necessary by the system and is used when the mains power is cut. If the display is saying the battery is 'dying' then replace it. As to charging it - a normal (modern-ish) 12v battery charger will work provided it's voltage controlled and current limited. Older fast chargers definitely not recommended.

jonno12 · 15th May 2017, 15:41

thank you for the quick reply avulon, probably better to replace

macafee2 · 15th May 2017, 17:11

should your alarm system keep the battery charged?

macafee2

bl52krz · 15th May 2017, 19:46

We have a 'monitored' alarm system to the police.We have to have a check on it every 12 months, and after around 10 years, the chap who comes to test it, said he would have to fit a new battery as it was not worth off site charging. I kept it and tried to charge it but it soon lost its charge after testing it. So, don't bother charging it, get a new one.

15th May 2017, 15:11	#1
jonno12 Posted a thing or two rover75 saloon connie Join Date: Mar 2011 Location: Solihull Posts: 1,003 Thanks: 78 Thanked 74 Times in 66 Posts	battery charging with a difference unusual battery charging question hi folks, as above, now i believe my house alarm battery is dying, now although it is 12v will my charger charge it or blow it to pieces' as it's so small, or do I need a household charger of sorts.it says it's valve driven would that be no no I bought a new one last time and will do so if ness. but it does say rechargeable

15th May 2017, 15:36	#2
Avulon This is my second home 1.8t Tourer Join Date: Oct 2011 Location: Tanelorn Posts: 4,830 Thanks: 956 Thanked 1,148 Times in 916 Posts	Your battery is valve driven? As I understand home alarms the battery is charged as necessary by the system and is used when the mains power is cut. If the display is saying the battery is 'dying' then replace it. As to charging it - a normal (modern-ish) 12v battery charger will work provided it's voltage controlled and current limited. Older fast chargers definitely not recommended. __________________ Need a T4 ?: T4 Owners Map thanks to Stevestrat ( use at your own risk) Where?: https://en.wikipedia.org/wiki/Tanelorn Mods/Retrofits: PCV vortex 'filter'; bluetooth; inline thermostat; reversing sensors; plenum spyhole ; headlamp washers ; Diy mp3 player replacing CD multichanger; FBH with remote; Headlamp washers; black/chrome front grille, rear blind; Xenon projectors To do: puddle lights; 2 Din cd/nav to fit; boot release button

15th May 2017, 19:46	#5
bl52krz This is my second home Rover 75 cdt club + Rover 2.5 KV6 Conni SE Join Date: May 2008 Location: Birmingham Posts: 11,412 Thanks: 6,587 Thanked 2,262 Times in 1,729 Posts	We have a 'monitored' alarm system to the police.We have to have a check on it every 12 months, and after around 10 years, the chap who comes to test it, said he would have to fit a new battery as it was not worth off site charging. I kept it and tried to charge it but it soon lost its charge after testing it. So, don't bother charging it, get a new one. __________________ Great Barr, Birmingham.

15th May 2017, 15:41	#3
jonno12 Posted a thing or two rover75 saloon connie Join Date: Mar 2011 Location: Solihull Posts: 1,003 Thanks: 78 Thanked 74 Times in 66 Posts	thank you for the quick reply avulon, probably better to replace

15th May 2017, 17:11	#4
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 14,954 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	should your alarm system keep the battery charged? macafee2