Kastar Rechargeable Battery Compatible with Logitech Harmony 880 890 720 785 885 895 One MX-880 R-IG7 F12440023 815-000037 190304-2000 190304-0000 866165 866145 866207 and Monster AVL300 MCC AV100

Bought to replace a Harmony One swollen battery, which seems to be a common issue. I've used this battery for a month now and so far no issues, in fact is seems to last longer than the previous battery (Which is probably due to a defective battery). 10/22/13 Update to my review, I felt compelled to write a follow up since I've seen so many negative reviews. I've used this battery for almost 3 years now with no issues and am really surprised on how many people had defective batteries. Maybe I've been lucky but I've noticed I can't go more than a couple of days on a single Charge (Which happens due to aging battery) but that's been OK since we put the remote back on the charger by the end of the day. I haven't had a problem with the stock charger charging the battery nor have I had the pleasure of this battery failing.

Had a Logitech Harmony all in one remote. Sadly they have stopped producing them. Ours was acting strange rebooting not turning on devices. Replaced the original battery with this one and it’s good as new.

The rechargeable battery worked great upon arrival when I installed the unit. Now I need to purchase a new battery, because for some reason the battery wil not hold a charge long. Amazon's service was good, however; the suppliers service/product was not to good, for me.

It's too bad Logitech stopped making home theater remotes. Means at some point, I won't be able to buy the "One" remote any longer. Luckily, I have a few spare ones in a drawer that I bought used. We have 4 of them in the house for my wife and I to use (each end of the couch, each side of the bed). Luckily, the software to program them still works... unless I buy something new that wasn't in the database previously... Anyway, the battery life on a couple of ours was getting short, so I ordered 4 of these to just replace all of them at once. They seem to work fine all day without issue for us.

This holds a two day charge. It is nothing like the original battery.

Update: The battery worked fine for about a year then quit suddenly. At least it did not swell and jam the back cover. I replaced the original battery (swollen) in my Logitech 880 universal remote. It worked properly in the stock charger. There are a bunch of batteries that fit this remote but require a separate charger so I was worried about compatibility. I can't stand that manufacturers continue to use non standard form factors and "drm" chips for device batteries. Fortunately this battery works exactly like the original and returned the charge time back to 'like new".

Bought to replace the battery in my Logitech remote. Bought the remote used, and like many others, the existing battery was all kinds of swollen. Was finally able to get it out and replaced it with this one. Works great, no complaints! A+ 😁👍

This battery fit my remote. It now has an operating duration as new.