This article presents a stretchable lithium-ion battery with self-similar serpentine interconnects and integrated wireless recharging systems. The battery is designed to be highly stretchable, with a maximum stretchability of 300%, while maintaining a capacity density of ~1.1 mAh cm⁻². The battery uses thin, low modulus silicone elastomers as substrates, with a segmented design in the active materials and unusual 'self-similar' interconnect structures between them. The interconnects are designed to allow for high system-level stretchability and low interconnect resistances. The battery is integrated with a wireless charging system that enables charging without direct physical contact. The battery design exploits pouch cells in which arrays of small-scale storage components are connected by conducting frameworks with extraordinary stretchable characteristics. The battery uses a 'self-similar' design for the interconnects, which allows for hierarchical buckling physics that ensures ultra-low strains in the materials, even under extreme stretching. The battery is tested for its mechanical and electrochemical properties, showing high areal capacity density and good electrochemical performance. The battery is also tested for its ability to operate under various mechanical deformations, including stretching, folding, twisting, and mounting on the human elbow. The battery is also integrated with a wireless charging system that uses a secondary coil to couple electromagnetic flux from a primary coil, and a Schottky diode to provide rectification. The wireless charging system allows for charging without direct physical contact, and is designed to be compatible with the battery's stretchable properties. The charging system is tested for its efficiency, showing a power efficiency of 4.9% at a working distance of 1 mm between the primary and secondary coil. Increasing the secondary coil thickness improves the efficiency to 17.2%. The battery is also tested for its ability to operate with a resistor, showing a decrease in output power with strain, likely due to increased internal resistances. The battery and wireless charging system are designed to be highly stretchable and compliant, with a modulus that is only slightly higher than that of the silicone substrate materials. The battery is also shown to be compatible with the human epidermis, without significant mechanical loading. The battery and wireless charging system are designed to be highly efficient and compatible with a wide range of applications, including wearable electronics, medical devices, and flexible electronics. The battery and wireless charging system are also shown to be highly durable, with a capacity retention of over 90% after three cycles. The battery is also shown to be highly flexible, with a capacity retention of over 50% for up to 20 cycles of recharging. The battery and wireless charging system are designed to be highly versatile, with a wide range of applications in flexible electronics and other areas.This article presents a stretchable lithium-ion battery with self-similar serpentine interconnects and integrated wireless recharging systems. The battery is designed to be highly stretchable, with a maximum stretchability of 300%, while maintaining a capacity density of ~1.1 mAh cm⁻². The battery uses thin, low modulus silicone elastomers as substrates, with a segmented design in the active materials and unusual 'self-similar' interconnect structures between them. The interconnects are designed to allow for high system-level stretchability and low interconnect resistances. The battery is integrated with a wireless charging system that enables charging without direct physical contact. The battery design exploits pouch cells in which arrays of small-scale storage components are connected by conducting frameworks with extraordinary stretchable characteristics. The battery uses a 'self-similar' design for the interconnects, which allows for hierarchical buckling physics that ensures ultra-low strains in the materials, even under extreme stretching. The battery is tested for its mechanical and electrochemical properties, showing high areal capacity density and good electrochemical performance. The battery is also tested for its ability to operate under various mechanical deformations, including stretching, folding, twisting, and mounting on the human elbow. The battery is also integrated with a wireless charging system that uses a secondary coil to couple electromagnetic flux from a primary coil, and a Schottky diode to provide rectification. The wireless charging system allows for charging without direct physical contact, and is designed to be compatible with the battery's stretchable properties. The charging system is tested for its efficiency, showing a power efficiency of 4.9% at a working distance of 1 mm between the primary and secondary coil. Increasing the secondary coil thickness improves the efficiency to 17.2%. The battery is also tested for its ability to operate with a resistor, showing a decrease in output power with strain, likely due to increased internal resistances. The battery and wireless charging system are designed to be highly stretchable and compliant, with a modulus that is only slightly higher than that of the silicone substrate materials. The battery is also shown to be compatible with the human epidermis, without significant mechanical loading. The battery and wireless charging system are designed to be highly efficient and compatible with a wide range of applications, including wearable electronics, medical devices, and flexible electronics. The battery and wireless charging system are also shown to be highly durable, with a capacity retention of over 90% after three cycles. The battery is also shown to be highly flexible, with a capacity retention of over 50% for up to 20 cycles of recharging. The battery and wireless charging system are designed to be highly versatile, with a wide range of applications in flexible electronics and other areas.