I use my Rayovac 1 hour charger for all of my NiMH AAA and AA batteries. It has always worked perfectly for me. To date, I have not had any problems with it.
This charger indeed fully charges the batteries in about 1 hour. A lot of times they are even done in less time. Iâ€™ve had this thing for years now, and itâ€™s performance hasnâ€™t decreased a bit.
It can charge 1, 2, 3, or 4 AAA or AA NiMH or NiCD batteries at a time. You can also charge a single 9V battery by itself. The batteries are all charged independently, so you can put some in while one is already charging, etc. When you put a battery in, the corresponding green light comes on until the battery is done. If the battery is inserted wrong, the light flashes to alert you.
Whether the battery is fully dead or still has some charge left, this charger fills it back up and correctly detects when the battery is charged. It works great with pretty much every brand of battery, so you can use it if you have, say, Energizer batteries like I do.
The price is pretty cheap at around $20 (if you can still get one), and it works great for keeping the familyâ€™s batteries juiced up.