![]() When plugged in the camera is constantly on. Looking at the specs, it seems in the UK and Europe, the Nest Doorbell can operate between 8-24 VA and in the US it's a bit higher. For a simple mechanical chime and push-button, we would need a hefty transformer to knock our 50Hz 240V AC standard down to that level! We don't tend to need 24V 1A bell transformers normally. Over here in the UK, doorbells are normally battery-powered DC (mechanical chimes using 4 C cell batteries for 6V) or plug-in electronic wireless chimes. This is king of part of the problem I'm having - this doorbell is designed for the US market which - after doing some belated research - is based on the standard AC bell systems you have over there. Pity Google don't sell an adapter for their range of bells in the UK. ![]() I also stupidly got a Ring one (because - official so must have some quality) but failed to realise that Ring bells are DC and not AC. I tried a 24V 0.5A plug in one from Amazon which was awful so went back - it ran very warm and had a smell of warm oil (like a drill or jigsaw goes after prolonged use). This isn't the first transformer I've tried. I've seen a post on here that someone set up there Nest Battery doorbell with a Byron 776 with built in 8VA transformer and got that to charge. Also, it seems since turning off last night to turning off tonight, charge has dropped just 1% so I'm wondering if the battery meter isn't reading right just yet. No charging again, however this time no decrease in battery charge either. I've tidied up the wiring a bit more now and tighten up a few screws/sorted out some pinched cable from where the grip may have been a bit too tight and tried again for a few hours. Which it must be as the chie does ring when the button is pressed, so the wiring does seem correct. When it's plugged in it says "Plugged in" in the app with the infinity symbol as you mentioned. I can't test to see the power at the bell as my multimeter doesn't seem to have many AC settings (mostly DC) and the few it has doesn't seem to be set for this task.Īny ideas why the bell isn't charging when the mains is on? Transformer not giving out 12VA, wiring reducing the current, the connector clips for the bell not got a good enough grip to the copper of the bell wire (hard to see if it has)? Any help will be appreciated as this is tearing my hair out! I wondering if either of those cables is causing resistance (neither cable is getting warm to touch though however most of the bell wire is hidden). Between the transformer and bell chime is a short piece of speaker cable and then from the chime to the Nest doorbell itself is the original bell wire. The transformer is plugged directly into a standard UK 13A plug socket with a plug fitted with a 3A fuse. Even now it's at 56% and running off battery! I tried a test earlier and plugged it in again with the camera off - again no charging, but no battery drain either. Strangely, overnight the battery didn't drop at all, and it wasn't plugged in. In fact, I had it plugged in during the day yesterday and the battery % dropped from 63% to 57%. The bell will chime when the button is pressed so there is a circuit in place and complete. The bell is rated at 12V and 15W (roughly 15 VA I believe) max and is wired up to the manufacturers instructions. My original chime was a Micromark 6V DC battery powered mechanical one, which I've replaced with a Honeywell "Ding Dong" D117 mechanical one, and have wired it up to a new 12V 1A transformer (Eterna BT4812) so it should be giving out 12 VA max. The wires are still in place so I've reused those. I've recently installed a new Nest Doorbell (Battery) to replace my standard wired pushbell. I think there may be a few similar questions to this one, so apologies if I needed to reply to one of those rather than start a new thread.
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