Eugene's DIY Den Posted February 4 Share Posted February 4 (edited) It's an HKC SW-1070 I installed at the end of 2019. I know, it's not a DIY alarm. During a recent power cut, it ran the system for 10 hours no problem The panel isn't complaining about any issues (maybe it doesn't do this, but there's a battery test in the engineering menu. I presume that does a load test). Edited February 4 by Eugene's DIY Den Clarifying something. Talking Tools, a Facebook group for discussing anything tool/DIY related. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/47119-when-should-i-replace-the-battery-in-my-alarm/ Share on other sites More sharing options...
PeterJames Posted February 4 Share Posted February 4 Hi, The battery should be replaced every four years. This is the manufacturers expected lifetime guidelines. I have known batteries to continue to hold good life long after four years, but accredited installers have to follow the manufactures guidelines. The performance of the battery is effected by many things, the quality of the electricity more spikes and fluctuations will reduce the life of the battery. The quality of the charging system (HKC is generally good) power cuts discharging and charging the battery will reduce its life. The size of the battery should reflect the current pulled from the system. 1 Link to comment https://www.thesecurityinstaller.co.uk/community/topic/47119-when-should-i-replace-the-battery-in-my-alarm/#findComment-527821 Share on other sites More sharing options...
sixwheeledbeast Posted February 4 Share Posted February 4 Yuasa rate NP batteries as 5 year service life for use within alarm systems, other manufacturers maybe different. From experience you could get 10 years from a Yuasa one but it's best to swap before it's deteriorating. 1 Link to comment https://www.thesecurityinstaller.co.uk/community/topic/47119-when-should-i-replace-the-battery-in-my-alarm/#findComment-527822 Share on other sites More sharing options...
al-yeti Posted February 5 Share Posted February 5 17 hours ago, Eugene's DIY Den said: It's an HKC SW-1070 I installed at the end of 2019. I know, it's not a DIY alarm. During a recent power cut, it ran the system for 10 hours no problem The panel isn't complaining about any issues (maybe it doesn't do this, but there's a battery test in the engineering menu. I presume that does a load test). As above But battery can sometimes prematurely die , might be example in a loft where I seen them die quicker , or sometimes boiler room and so on Yes load test , try it But you might be running all wireless aswell? 1 Link to comment https://www.thesecurityinstaller.co.uk/community/topic/47119-when-should-i-replace-the-battery-in-my-alarm/#findComment-527828 Share on other sites More sharing options...
MrHappy Posted February 5 Share Posted February 5 Every fire years in an intruder alarm Every 4 years in a fire alarm Unless they fail earlier... 1 Mr Veritas God Link to comment https://www.thesecurityinstaller.co.uk/community/topic/47119-when-should-i-replace-the-battery-in-my-alarm/#findComment-527831 Share on other sites More sharing options...
Eugene's DIY Den Posted April 17 Author Share Posted April 17 On 05/02/2025 at 11:37, al-yeti said: As above But battery can sometimes prematurely die , might be example in a loft where I seen them die quicker , or sometimes boiler room and so on Yes load test , try it But you might be running all wireless aswell? Mostly wired, but two wireless sensors. Can an ageing battery generate false alarms? Also the sound from my external sounder sounds "scratchy", like there a bad connection. Does that sounder run off the onboard battery and is the variable sound quality and volume likely a symptom of a failing battery? Talking Tools, a Facebook group for discussing anything tool/DIY related. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/47119-when-should-i-replace-the-battery-in-my-alarm/#findComment-529120 Share on other sites More sharing options...
james.wilson Posted April 17 Share Posted April 17 No probably a failing piezo. Not replacing your main battery will lead to control panel failure securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/47119-when-should-i-replace-the-battery-in-my-alarm/#findComment-529121 Share on other sites More sharing options...
Eugene's DIY Den Posted April 18 Author Share Posted April 18 19 hours ago, james.wilson said: No probably a failing piezo. Not replacing your main battery will lead to control panel failure How does that happen? If the battery fails and vents? I think that happened with my old panel because the terminals corroded as though they got sprayed with something. Or is it due to the battery pulling too much current during the float charge and ageing the charge circuitry, while it should only be taking a trickle. Talking Tools, a Facebook group for discussing anything tool/DIY related. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/47119-when-should-i-replace-the-battery-in-my-alarm/#findComment-529141 Share on other sites More sharing options...
PeterJames Posted April 18 Share Posted April 18 51 minutes ago, Eugene's DIY Den said: How does that happen? If the battery fails and vents? I think that happened with my old panel because the terminals corroded as though they got sprayed with something. Or is it due to the battery pulling too much current during the float charge and ageing the charge circuitry, while it should only be taking a trickle. It puts more load on the psu it pulls more current than the psu is designed to provide, and eventually burns out the charging circuit 1 Link to comment https://www.thesecurityinstaller.co.uk/community/topic/47119-when-should-i-replace-the-battery-in-my-alarm/#findComment-529143 Share on other sites More sharing options...
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