Polymer electrolytes with room temperature conductivities of S/cm were prepared by encapsulating solutions of (or or ) in oligomeric poly(ethylene glycol) dimethyl ethers in a poly(vinylidene fluoride)‐hexafluoropropene copolymer. The 100 to 200 μm thick membranes prepared have good mechanical strength and are “dry” with practically no volatility at least up to 70°C. Because of these properties and the structural similarities between poly(ethylene glycol) dimethyl ethers (PEGDME) and polyethylene oxide (PEO) we call them PEO‐like.