This document provides specifications for the SMILE-BAT-10.1P modular home battery from Alpha ESS. The battery has a 10.1 kWh energy capacity and 9.1 kWh usable capacity. It uses LFP battery cells and has a nominal voltage of 48V, depth of discharge of 90%, and expected cycle life of 8000 cycles. Key features include modular and scalable design from 1-6 modules, CAN and RS-485 communication, IP21 or IP65 protection, and a 5-year product and 10-year performance warranty.