Empire Cordless Phone Battery, Compatible with Logitech H800 Cordless Phone, (Li-Pol, 3.7V, 320mAh) Ultra High Capacity Battery

My experience seems to confirm comments by others that battery life is longer than original. Works every bit as good as my original battery. Only criticism is that, when I'm charging battery after use, the light on headset turns treen when I plug in cord to charge, then goes to yellow. When fully charged, the light goes out. The light on the original headset turned to green when fully charged, and I miss that. When I'm using the headset, this battery is flawless. Thank you soo much. I love my cordless Logitech H800 headset and now I can continue using it.

Fits right in the crevice where the old one was. works great.

This battery is advertised as a replacement for a Logitech H800 wireless headset. The connector is correct, but the battery never charged in the headset (the original battery still charges). The tiny box the battery came in says it is for a mobile phone.I tried charging this battery inside the headset (the only way to do it) with several micro USB chargers, including the original charger that came with the H800. This battery never charged, although the headset's LEDs, lighted, indicating charging. The headset will not power on with this battery, even after hours of supposed charging.The problem does not lie in any of the chargers I used. They all work correctly for other devices and they all charge the the H800's original battery. The headset is also not the problem. It still gives good service with the the original battery. It merely needs to be charged more often (shorter use-time before recharge needed).I speculate that someone looked at the connector, realized it ws the same as for a Logitech H800 and that it would fit inside the H800's battery compartment and advertised it as fit for an H800. I suspect this batter simply not electronically suitable. It is not the same size or shape as the original battery, considerably smaller in every dimension. I sent it back and have ordered a different battery that looks to be the same form factor as the original.There was no problem with shipping or damage. The battery arrived in good condition and entirely intact, and within the promised time. I don't think the battery was defective, It just seems like the wrong product -- not correct for this use case.

This battery was used to replace the failed original in my Logitech H600 headset.First, the battery fits perfectly in the original compartment.I've not tested the overall runtime as I use the headset for meetings while working from home. I haven't had one of my monthly long meetings yet.The original battery would die within my 15 minute daily meeting, so I can at least say I'm better than that!Perfect replacement!

Worked as expected

I bought my Logitech H800 headset in June 2012, for the past ten years it has worked perfectly, but due to the recently more common video meetings, its battery life was down to one hour or less, with the matching red light and beep warnings.I was expecting less than the rated 6 hours of the original battery, but, got this replacement, installed and charged it and let it running paired via Bluetooth to play some music at 9am, by 5:30pm (8 and half hours!!) the red light turned on, but continued playing music until 9pm! That's 12 hours! TWICE THE RATING!!I think the differences is the rated hours are for calls, including the microphone, but still, very surprised how long this battery kept it playing.This is the first time I replace the battery, I usually took a meeting and charge it again and so on, so I didn't notice the short battery life until one day I left it over lunch and came back to it dead. Ear pads I have changed like five times now.Let's see how long this replacement lives!

Battery is smaller and not designed exactly as the original. It is slightly smaller, but so far it seems to last longer than the original. I have only had this a few days, so cant fully gauge it yet. Due to it being smaller I just secured it with 2 small pieces of electrical tape, which is not a big deal since it is internal and is not seen. Other than the battery not being an exact fit, this has been a good replacement so far. Original batter would only hold a charge for about 30 minutes. So far it has been a few hours over a few days, and have not changed it since I received it.

This worked for a Logitech H800 headset that is used for working from home. We thought we were going to have to get a new headset, but really like the one we have. We weren't absolutely sure it would fit/work with the reviews, but ordered it to see, and it is perfect.