REYTRIC Upgraded Video Doorbell E340 Battery Compatible with Eufy Security Video Doorbell E340, 7000mAh Rechargeable Battery Pack with USB-C Cable

When a product is simple, and does what it's supposed to do, there's not much to say in a review. This is such a product.It arrived with about a 50% charge, which is something I always like to mention as too many battery powered products arrive either devoid of charge or a charge so minimal that you can do little more than turn it on for a few moments.I charged it overnight and then simply installed it in my doorbell cam. Fit well, and my doorbell cam worked with no issues. Seemingly held it's charge well and didn't appear to drain inordinately fast or precipitously. I've been through a few cycles now and it appears to be working excellently.So, would I order this again? Definitely. Would I recommend this to others? Absolutely.A+++++

Does it give my camera power? Yes. Does it allow Live View (including when someone is outside, like a peep-hole? Nope. The OEM is perfect, no problems. I see this battery as “as a backup” to your other regular OEM batteries. I’d pay more to get all the functionality out of my camera, as lm supposed to.

Edit #2: After the issue below, I started using this battery only while charging the Eufy one. That only takes a couple of hours and was originally not an issue, but now this battery can't even make it that long before it overheats and shuts down the doorbell. Stay away from this one.Edit: I originally gave this 3 stars as it was overheating and I thought that was due to how hot it was outside at the time, but it now continues to overheat when the temperature is in the low 70s. Luckily the Eufy has a feature to shutdown when it is overheating so as not to damage the doorbell, but that also means the doorbell/camera no longer work. I am also concerned about what the long term effects of it constantly overheating may be.Original:Where I live, the temperature has been in the mid 90s to low 100s almost every day for the last month. Prior to installing this battery the Eufy one was installed w/o any issues, however after installing this one, on the 3rd day I received a notice from the Eufy app that the doorbell was overheating and the doorbell shut itself off to protect from overheating. That night I reset the doorbell and it was fine the next day, but the same thing happened 2 days later. At that point I replaced the battery with the original and it hasn't had any issues even though the temperature has been hotter than when the REYTRIC battery was installed.This obviously was not a controlled test, but considering the Eufy battery was in the doorbell for about 4 times as long as this battery (both before and after) in similar (and even hotter) weather, I think it is fair to say that this battery isn't as suited for hot weather as the Eufy one.Now that being said, if you don't live in an area with hot weather this battery is probably fine for you. Also, I should note that - at least for me the 2 times it overheated - the Eufy did protect itself by turning off. Obviously that is not ideal, but it is better than letting the doorbell be damaged.This weather will (hopefully) only happen for a month or two a year, so I am fine with using this battery the remaining months and using this one overnight while the Eufy one recharges, but please be aware of its temperature related limitations when making your decision.

I'm pretty sure I got a bad battery. I put it in the doorbell camera and it died within 2 weeks and the doorbell kept triggering high temperature. I put back to factory battery and haven't had any issues since.