ec_read_u16
return (s16) ec_read_u16(addr);
val->intval = ec_read_u16(BAT_VOLTAGE_DESIGN) * 1000;
val->intval = ec_read_u16(BAT_VOLTAGE_NOW) * 1000;
val->intval = ec_read_u16(BAT_CHARGE_DESIGN) * 1000;
val->intval = ec_read_u16(BAT_CHARGE_NOW) * 1000;
ec_read_u16(BAT_SERIAL_NUMBER_ADDR));