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Hi, I have successfully changed my alarm battery and just had a question about this secondary outside light control keypad. The outside lights do not come on with the alarm or if triggered by the old PIR's that are outside but can be used manually from this keypad. However, when there is a...

I didn't notice stivino had posted the wrong battery (NP1) I'm wondering what the difference is between these 2 and they are even the same size. So if NP is an Industrial battery, what is Y? http://www.yuasabatteries.co.uk/np21-12-yuasa-54-p.asp...

yeh, I've seen that and other than dimensions and weight there seems to be no difference in power/lifespan etc. I just wondered if anyone had experience of one being better/worse than the other in use.

I did post this in a thread but it has probably been missed, I just wondered if there was any difference before I order one. Thanks in advance. RG

Hi again, Prog, 0123 didn't work but Prog and then my code did so all good. It has a Yucel Y2.1-12 battery and I just wondered what the difference was between that and the NP2.1-12 before I order one? Thanks again... (:-)

Great, thanks for the info..will have a look later to see what battery I need.

Hi all, I need to change the back up battery in my concept alarm and wondered what was the best way to go about it? The main control box is in the loft and the keypad is in the kitchen, at the moment I need to use the 0123 code after a power cut so hopefully a new battery in the main control...