Excelltec 10Pk Long Lasting AAAA Batteries Compatible with Surface Pen & Lenovo Battery for Medical Devices Reliable 1.5V Power Source Quadruple A Alkaline 4A High Performance

RELIABLE 1.5V POWER – Excelltec AAAA batteries deliver steady alkaline performance for compatible digital pens, stylus devices, medical devices, key fobs, clickers and other low-drain electronics. MADE FOR PRECISION DEVICES – These 1.5V AAAA cells are designed for compact electronics that need a slim battery format, helping your essential devices stay ready for everyday use. Also use as aaaa batteries for surface pen. 10PK READY SUPPLY – Each pack includes 10 AAAA batteries, giving you a practical replacement supply for home, office, work bags or device drawers. ALKALINE AAAA BATTERIES – Built with alkaline battery chemistry for consistent output in compatible devices that require AAAA 1.5V batteries or 4a batteries. CHECK DEVICE COMPATIBILITY – Suitable for devices that specifically require AAAA size 1.5V alkaline batteries or quadruple a batteries; always confirm the battery type shown in your device manual or battery compartment.