Logitech Harmony 1250mah 3.7v Li-ion Remote Control Replacement Battery for 915 / 1000 / 1100i / L-lu18 / Lu18, 2 Piece

I bought the 2 pack as I have a duet of Duets running original batteries, which means the controllers had about a 2 hour time off the charger. After replacing the worn out factory batteries, and taking these through a full discharge/charge cycle, I now have useable Dueat Controllers again! With ~$11 purchase, I just added years to the life of my Duet systems. I am a happy customer!

One battery functioned as it should have. Very well and as expected. The second was a HUGE disappointment, it lasted less than two weeks and died (+ would not take a charge from any charger in my home. Strange as I own (7) seven li-Ion chargers all of which work EXTREMELY WELL with other battery packs.

My remote's battery would not hold a charge for very long. So I headed to Amazon to see if there was a replacement. This battery is perfect. I charged it once and my 1100 remote has been working for a week now. Great price for a great product. Brought my remote back to life!

once they go out, they don't charge anymore.

The battery came quick and it had a little charge on it that I tried to let it die without putting it on the charger for 2 plus weeks and it wouldn't die so I can put a full charge on it. This battery is excellent.

Solved problem. Works great.

good value

Worked great. Thanks