We bought these batteries 5 years to go in my digital camera. They have lasted me 5 years! It's just now starting to get to the point where I have to recharge them about once a week. When we first purchased them, I could go months without a charge. Of course, I am using my camera for a lot more videos and I assume that eats up more battery.
It only takes about 4 or 5 hours to charge these batteries. I usually plug them in before I got to bed and they're ready to go in the morning. If I'm only charging 2 at a time, it only takes a couple of hours.
I will probably be getting ready to purchase new batteries in the near future and they will definitely be the Monster brand.