This M3863A battery is a reliable and long-lasting power source for your Philip FR2 or FR2+ device. With a capacity of 4200mAh, it provides enough energy to keep your device running smoothly for an extended period. The battery is designed with Limno2 chemical composition and measures 172*36*66mm in size. In addition to the manufacturer warranty of 6 months, this battery also comes with CE and UN38.3 certifications, as well as an msds certificate. It is suitable for use in a variety of devices, including the M3863A HeartStart FR2 and FR2+ models, as well as the M3860A, M3840A, M3841A, and M3861A models. Don't miss out on this high-quality battery that will keep your device running smoothly and reliably.