Nest Doorbell Replacement Battery for Nest Doorbell Wired Hello Video NC5100US, 1ICP7/17/26 Battery

This battery fixed the Nest Hello doorbell rebooting when the doorbell is pushed. Please note, I have the wired version that has a battery inside.It wasn't easy to install the battery despite following YouTube videos and ifixit instructions. It was a pain to take the doorbell apart and remove the original battery. The original battery had a foil attached with wires attached to a part of the board. I would think it's for temp monitoring, but I'm not 100% sure. I decided to carefully remove the foil from the original battery and attached it to the new battery. I used electrical tape to keep the foil attached to the new battery. After the battery was installed I carefully closed the main board to the housing, but the cover was not easy to reinstall. I used several glues but a small amount of glue sort of worked. Luckily I have a silicone cover for the doorbell since I couldn't completely get the Nest Hello cover on. None of this is the battery's fault. It works perfect, but make sure you understand, this is not an easy replacement.

I had an issue where my Google Nest was turning off whenever somebody pressed the doorbell button. I had changed the transformer and wiring...still kept happening. Finally, I found a resource online saying the cause was an internal battery. I used this battery to replace my 4 year old Google Nest's original battery. The battery was slightly different in the original Google Nest. There was a golden film around that battery that was connected to a part of the board. It's taped/glued around the battery so I just took off the tape and rewrapped it around this new one. I think I have a slightly older model of the nest, so this might not be an issue for some. Anyways, the Nest is a bit of a pain to open up, and it won't fit back together as neatly as when it was factory produced. But this battery did the trick and it works like new, which is great. Definitely way cheaper and more eco friendly to spend a couple hours how to take it apart and put back together than buy a new one.Also, because I wasn't able to neatly put my plastic covers on cleanly like it was originally, I highly recommend buying a silicon case to hold your nest in place. I bought this one from a brand called "elago". Less than $15, seals it pretty nicely, and lots of colors.https://www.amazon.com/dp/B07DJ14B5Q?psc=1&ref=ppx_yo2ov_dt_b_product_details

This battery was an exact fit for my Nest Doorbell. You will need some kapton tape to secure the battery heating element to the new battery. I also used some RTV silicone to secure the front panel on. The battery took quite a while to take a charge before the doorbell would remain on while it was being rung. I tried ringing within the first 2 hours after installation, and it wasn’t staying on. After waiting overnight the battery finally was taking a charge, and the problem with the doorbell powering off while someone rings it is resolved.

The battery serves its purpose, just the connector comes with longer cables that you have to move around, other than that it has worked for me.

First Flujoy battery intermittently wouldn't have enough charge to recover from a doorbell press. Returned it for replacement. The replacement will power the doorbell for 5 seconds after disconnecting USB. If I connect it to doorbell transformer power, the Nest would never power up without USB power, and would die 6 seconds after disconnecting USB power. Swapped the intermittent battery back in to at least have a semi-functional Nest Hello while I order from another vendor. I suspect these have sat on the shelf discharged for too long.

The Nest Hello Gen 1 requires a bit of skills to open but the battery is easy to replace. It's slightly smaller than the original, so it's an easy fit. Ding dong back to life as soon as connected. Very happy!

This kit saved me from having to buy a new video doorbell. It appears that Nest didn’t want the battery to be replaced but with this kit replacement is possible. Not easy but possible.

Came on time and caused nest hello to work again. Pick that was included was not strong enough to open case so had to use a small screwdriver. The battery is smaller than the original so no problem fitting it in. Can't say how long the battery will will last as I just installed it.