Useful topic breakdown on Rechargeable vibrators:

Rechargeable vibes
my next vibe is going to be something that's rechargeable (sort of like the hitachi models or similar... so dang cute and it seems to work well)......

Why not to use Rechargeable Batteries
In a few threads recently, I've noticed people who have wanted to use rechargeable batteries, or have wanted EF to carry rechargeables. I've mentioned

Storage Tips for Rechargeable Vibrators?
Ok, I know how to take care of regular vibrators, I take the batteries out and put it in storage in an appropriate place. But I've been wondering...

Rechargeable, power cord, or battery powered?
I try to get as many rechargeable toys as possible, but when I can't I try to avoid watch batteries and C-batteries. What's your favorite power...

How often do your charge your rechargeable toys?
Curious how often people charge their toys. Pick one.

I was told not to use rechargeable batteries in my sex toys. Not to use any alkaline batteries for that matter. I was told that using carbon based batteries. I don't know if its true but my local shop told me that it would help make my toys last longer.

Told to use carbon based batteries.

I hate it when that happens!

That's interesting that they would suggest carbon based batteries.
Here's a quote from the Wikipedia article on AA batteries:
"Primary (non-rechargeable) zinc-carbon AA batteries of 400–900 milliamp-hours capacity are commonly made using Leclanché cell technology. Zinc-chloride batteries of 1000 to 1500 mAh are often sold as "long life" or "heavy duty". Alkaline batteries from 1700 mAh to almost 3000 mAh cost a little more, but last proportionally longer."
All single use AAs have a nominal voltage of 1.5V, so I am not sure why they would say zinc-carbon batteries are the best to use for long life of your toys. Zinc-carbon has the lowest mAh rating which means they have the shortest life of any of the AAs. One might try to claim that the lower rating means it provides less current, but the current draw is really based on the motor not on the battery.
Rechargeable batteries have a nominal voltage of 1.2 V, so they might not be able to provide the voltage that a given motor needs which may lead to an early death for the motor.

Interesting. I wasn't sure if it had any truth behind it. I never did like rechargeable batteries. After awhile it seems that they just become a bigger hassle because toward the end of their life spend they stop holding a good charge.

I couldn't tell the difference in power when using the carbon batteries. I still wonder if I tried alkaline batteries if my vibrator would have stronger vibrations. I will do an experiment for you and see if I really can tell the difference.

I'll get back to you and let you know how it goes!

I think the point of what I wrote before is that the voltage in the single use batteries is the same which since they are being connected across the same motor (resistor) they will provide the same current. The difference is the ones with the lower mAh ratings will not last as long.
The rechargeable batteries are lower voltage which means lower current. In other words, single use batteries will always provide the same vibration but will only last as long as the mAh rating allows. The rechargeable batteries will probably have lower vibration.

There is a topic floating around about batteries preferred and there are some comparisons between rechargeable and disposable. While I like the idea of rechargeable, it seems like they just don't have enough power for some toys. Also, I've never seen any electronic device that did not warn against using rechargeable batteries. Why is that?

I've never had a problem using rechargeable batteries in anything, whether it is my camera or a sex toy. Even though I'm a power whore through and through, I don't think the small amount of lost power is enough to use regular batteries instead of rechargeables. I am not a "green freak" either. I like the idea that it is good for the environment, but honestly, I use rechargeable because they are cheaper in the long run. And when it comes to getting the most power from a toy, I reach for my Hitachi anyway.

Never had any problems with rechargeable batteries with my toys

rechargeable batteries are my love

I prefer to use rechargeable as well for the green and money aspect.

i wish eden had rechargeables. i would buy them, and i would also buy a charger.

I wish EF would carry rechargeable AAA and AA batteries & I'd buy a charger for each kind.
Was planning on buying a set of rechargeable ones and a charger for my mom this season anyway.