The batteries do its purpose quite well, in my opinion, unlike other brands batteries keep these models 1/4 less. Accurate measurement I have not made and think that in turn lead it to the operating situation back is how long to keep this battery models or not.
For remote control, Gameboy and Co. it does all the time, and doing so is protecting your wallet.
All the people should need more power somewhere else looking on and spend more money to get their money.
What has changed today is now one of the previously most devices to be bought if play equipment or cameras are equipped with its own battery which in turn saves you searching and buying overpriced batteries.
Personally, I would buy the batteries if it is as then this offer for 4.99.