Short Answer: I recommend Pickle Power Ni-MH rechangeable AAAA batteries.
Yes, rechargeable AAAA batteries do exist.
AAAA batteries (or quadruple As) are most often used in small devices such as laser pointers, LED penlights and small headphone amplifiers.
AAAA batteries are not common. However, rechargeable AAAAs do exist in two forms:
- NiCads (Nickel Cadmium) rechargeables
- NiMH (Nickel-Metal Hydride) rechargeables
NiMH have a higher energy capacity and are less toxic than NiCads (cadmium is a potent environment toxin).
Here are all the other commonly available rechargeable AAAA available: