I still think that for remotes, they are basing that off of standard rechargeable batteries and not ones with the technology that prevents discharging. It is true that you should not use rechargeable batteries in smoke detectors.
This is what Duracell has to say:
"Which devices shouldn't you use rechargeable batteries in?
You can use rechargeables in any device; however there are devices where you will have higher consumer satisfaction than others.
19.
Is it correct that you shouldnt use rechargeables in smoke alarms?
Good Housekeeping rationale: "when rechargeable batteries run out of power, they do so very quickly, whereas disposable alkaline batteries tend to die slowly. This means you wont get the warning beeps that tell you when the battery in your smoke alarm needs changing if you use rechargeables."
Due to its safety nature, the smoke alarm is not an ideal device for standard rechargeable batteries. Indeed standard rechargeable batteries discharge with time, and this means that for essential safety devices such as a smoke alarm, it is not recommended. We also need to remember that even if disposable batteries are used in smoke alarms, it is highly recommended to change the battery a minimum of once a year.
20.
What about gadgets' you don't often use? Will the battery drain itself if the gadget's unused for a while?
Again, standard rechargeable batteries do discharge overtime and are therefore not ideal for devices not used often or low-drain equipment. The new Duracell Staycharged, a low self discharge rechargeable holds up to 75% of its charge even after a year when not used, and overcomes this problem, thus can be used in low-drain devices or gadgets that are not often used.
21.
Is there a safety concern about using rechargeables in some toys?
There are no safety issues with rechargeable batteries in toys.
22.
Is it OK to use rechargeable batteries in any device?
You can use round cell rechargeable in absolutely any device where you would normally use an alkaline battery unless stated otherwise by the device manufacturer. There are no interference implications using rechargeable battery brands that are different to the device brand. (Please note that this is referring to round cell rechargeables, the lithium different shaped batteries are often developed by the manufacturer specifically to fit a certain cavity size, and therefore only the brand battery might work)."
http://www1.duracell.com/power/za/faq.aspx